O-rings are mostly rubber and are critical components of machine parts. Their main job is to stop leaks and ensure your device works as it should. Most people get confused when selecting the suitable material for O-rings. If yes, then you are not alone. This Nitrile VS EPDM O-rings Comparison guide can clear all your confusion.

 

EPDM and Nitrile are the two most popular rubbers used to make O-rings. As usual, they both come with unique pros & cons. However, one’s cons might be the other’s pros. That’s why their suitability is different for different applications. What happens if you choose the wrong material for your project? First, you won’t get the performance you expect. Second, the incorrect material leads to early leaks, wear, or system failure. So, it is crucial to select the correct rubber material for O-rings.

 

This article discusses the importance of choosing suitable material and how to choose it. It will highlight a few factors to consider when selecting your O-ring material.

 

What are O-rings?

 

O-rings are ring-like structures made of rubber or elastomers. They are critical components used as mechanical seals. When squeezed, O-rings make a seal when they are put in slots between two parts. With these rings, your device won’t leak any liquids or gases.

1. O-rings seal the gap between parts and prevent liquid and gas from leakage. It works on both static and dynamic systems. From here, you can realize that o-rings are highly flexible.
2. O-rings can still perform their functions even under varying pressure levels. However, you must be careful when using the highest pressure rating.
3. One of the best things about o-rings is that they can operate at varying temperatures. However, the rating mainly depends on the type of materials used.
4. O-rings can withstand wear, abrasion, and mechanical stress, which increases your device’s lifespan.
5. When you use o-rings in your system, your device gets a longer lifespan. This way, you can reduce replacement costs significantly.

 

Where are O-rings used?

 

O-rings are widely used in many devices. As you already know, what they do precisely. You can typically find them in engines, pumps, and valves. They are very critical in hydraulic cylinders to maintain pressure. O-rings are also used in fuel injectors to stop fuel from escaping.

 

O-rings also assist in sealing home device water filters, including those in coffee makers. They are vital in refrigerators, pressure washers, and more. O-rings provide correct water flow and stop coolant leakage.

 

O-rings are also used in medical equipment, including syringes and respiratory and dialysis machines. They are also used in laboratories for pipettes and centrifuges. Moreover, they are pretty popular in plumbing fittings. They are vital in pipe connections, showerheads, and faucets. They keep systems running and stop water from leaking.

 

Does the material of O-rings matter? But why?

 

Indeed, the material used for o-rings matters. It affects the O-ring’s performance on different devices. The material tells you how well o-rings can resist chemicals, oils, and fuels. It also affects the durability of the O-rings. The ability to withstand pressure and temperature also depends on the type of material.

 

The contribution of EPDM and Nitrile in making O-rings

 

O-rings can be made of EPDM or Nitrile. Both have unique qualities that fit many uses.

 

Both EPDM and Nitrile rubber offer excellent sealing abilities. However, their specific strengths depend on various factors. For example, NBR is a go-to material for fuel injection. However, if your device deals with water, it may not offer the best result. You would better choose EPDM since it is excellent against water and steam.

EPDM rubber

 

EPDM stands for Ethylene Propylene Die Monomer. This rubber material is famous for excellent flexibility. EPDM products also work great against harsh weather conditions. Because of this, people always prefer EPDM for outdoor applications.

 

Moreover, EPDM rubber is also resistant to heat, ozone, and UV radiation. Because of this, people prefer it for engines and HVAC systems. Another great advantage of using EPDM rubber is the water resistance. Because of this, people choose this material for water pumps and heating systems.

Nitrile Rubber

 

Nitrile or NBR rubber is also a common name in the rubber industry. This rubber material is highly resistant to oils, fuels, and other petroleum-based products. So, it is evident that nitrile rubber will work great in devices that deal with these things.

 

Nitrile rubber is often used in fuel pumps, hydraulic systems, and machinery. Piston O-rings are often made of nitrile rubber. It ensures both durability and strength in sealing fluids. Automotive systems, such as brakes, fuel injectors, and gaskets, greatly depend on NBR.

 

Nitrile vs EPDM: Which is more effective for O-rings?

 

You already know that EPDM and Nitrile are both famous for making o-rings. But which one is the best fit? To find out this answer, you have to consider a few factors.

 

EPDM and nitrile o-rings both have advantages and disadvantages. When you select between these two, you must compare your project requirements.

 

Nitrile vs EPDM: Chemical Resistance

 

Nitrile rubber is usually resistant to oils, fuels, and petroleum-based fluids. It is widely used in devices involving these substances and is a go-to choice for engine seals, hydraulic systems, and fuel pumps.

 

EPDM rubber O-rings are great against water and steam. Therefore, you can use them in water pumps and heating systems. EPDM rubber is also excellent against polar chemicals like alcohol and ketones.

 

Overall, nitrile O-rings are better for oil-heavy devices. However, if you are dealing with water-based devices, you should choose EPDM O-rings.

EPDM Rubber vs Nitrile: Temperature Resistance

 

The regular EPDM rubber has a temperature rating as low as -50 and as high as 150 degrees Celsius. On the other hand, nitrile rubber works great within the range of -30 to 120 degrees Celsius.

 

EPDM O-rings can handle high temperatures, so people prefer them for HVAC and steam. Although the difference is insignificant, nitrile rubber remains excellent at high temperatures. It shines in places where moderate temperature is involved.

 

In reality, other resistance abilities matter more than temperature resistance. So, when you decide on the most suitable option, you should balance other factors too.

 

Nitrile vs EPDM: Weather and Ozone Resistance

 

EPDM O-rings are highly suitable for resisting weather and ozone. It can effectively block UV rays and ozone. Because of this, they are commonly used in outdoor applications. You can often find its use in car door seals and roofing systems. Note that EPDM rubber remains durable even under prolonged sun exposure.

 

On the other hand, nitrile O-rings lack natural resistance to ozone and weathering. If Nitrile is exposed to sunlight, it will crack, degrade, and lose its elasticity. You may use them but must treat them with additives to improve their performance. In general, Nitrile rubber o-rings are ideal for indoor use.

 

Nitrile vs EPDM: Compression Set Resistance

 

A compression set is a material’s behavior. It determines the ability to return to its original shape after being compressed. This behavior heavily depends on three factors: temperature, pressure, and duration of the stress.

 

EPDM O-rings have excellent compression set resistance. They maintain their shape and sealing ability over long periods of use. In general, EPDM rubber is 25% compressible. It also works great even under high temperatures.

 

Conversely, Nitrile O-rings have relatively low compression set resistance. Under heat or steady compression, they may distort. Remember that under tremendous stress, nitrile rubber is more likely to shatter.

 

Nitrile vs EPDM: Stability

 

The stability of a rubber mainly depends on the application or project. Does it involve oil, chemicals, or abrasives? How about the working environments?

 

Nitrile rubber is usually very stable when dealing with oil, fuel, and chemicals. Because of this, fuel pumps, oil filters, and hydraulic systems all use it. However, adding UV rays or neutral liquids might be less stable.

 

On the other hand, EPDM O-rings are perfect for sealing polar solvents, steam, and water. However, their stability suffers when adding chemicals, fuels, or oils. Consequently, the use of Nitrile and EPDM determines the decision.

 

Nitrile vs EPDM: Hardness and Flexibility

 

The capacity of a substance to withstand deformation under a force is known as hardness. Flexibility, on the other hand, tells you how easily a material can be stretched or bent.

 

Nitrile rubber O-rings come in many hardness degrees. They are reasonably flexible but might lose their elasticity in freezing conditions. Conversely, EPDM rubber is well-known for its incredible adaptability. People use EPDM rubber for dynamic sealing applications since it is flexible even in very high temperatures.

 

EPDM vs Nitrile: Cost

 

After all the consideration, everyone comes to the final factor: cost. Cost determines profitability. However, cheaper solutions always don’t mean you have won. You must balance your project needs with the material’s performance.

 

Nitrile rubber is generally more cost-effective than EPDM rubber. Its manufacturing process is simple, and its availability is another reason nitrile rubber is affordable. On the other hand, EPDM rubber is slightly more expensive than NBR, but not too much. However, EPDM is always the best option if you consider durability and weather resistance.

 

Conclusion

 

EPDM and Nitrile O-rings are both prevalent in many applications. However, their exact uses differ based on their different properties. Most people make mistakes when choosing the right product. This Nitrile VS EPDM O-ring guide can help you choose the suitable material for your project.

 

If you need consultancy, contact us at our customer service point. Please submit the details about your device, and our expert will provide a solution immediately.

FKM and EPDM are generally two familiar names in the rubber industry. They are prevalent because they are always durable and reliable. But what makes them different? And more importantly, why does that difference matter? This “FKM vs EPDM Rubber” guide can help clear your confusion.

 

FKM and EPDM are unique types of synthetic rubber with strengths and weaknesses. People usually use FKM because of its good heat resistance, anti-aging properties, and strength. However, EPDM is ideal for insulating, absorbing impact, and weathering conditions. Each of these rubbers also has its limitations. For example, FKM is expensive, and EPDM needs a slow curing process.

 

So, why should we care about the difference between FKM and EPDM? The wrong selection of material results in severe problems. Let’s say you are using a FKM rubber in a plumbing system. Although FKM has good oil resistance, it has a lower water resistance. In this case, EPDM offers you better water resistance.

 

As you can see, each material has a best-fit scenario, and that’s the point. Understanding when to use FKM and when to use EPDM will save your company time and money. This comparative analysis will help you understand these two rubbers with ease.

 

 

What is FKM Rubber?

 

Another name for FKM is fluoroelastomer, and people also call it fluro-rubber. FKM is one of the most commonly used synthetic rubber materials designed for the harshest working conditions. It is made by VDF or vinylidene monomers. During manufacturing, a high quantity of fluorine and carbon-based monomers are used.

 

What makes FKM rubber stand out? First of all, it is very stable at high temperatures. FKM can work up to 250 degrees Celsius. As a result, people often prefer this material for applications where traditional rubber might quickly lose its grip.

• FKM rubber is durable against corrosion and can resist chemicals, flow acids, oil, alkalis, etc.
• FKM rubber has a very low friction coefficient and is widely used for sealing and rolling parts.
• This rubber also offers excellent insulation resistance.
• FKM rubber also works excellently against weather, fire, UV, and vacuum.

 

So, where would you find FKM rubber? A prime example is in the automotive sector. The car fuel systems and parts of car engines, trucks, and other heavy vehicles also use FKM rubber. As you know, FKM is well-resistant to fuels, oils, and high temperatures; it is the go-to option for fuel injectors, fuel tanks, and oil systems. Likewise, you will also find its use in the aerospace industry.

 

Moreover, FKM rubber can be used in industrial items and equipment, chemical industries, and automobiles. High-pressure pumps, heat exchangers, and industrial reactors are common in these cases.

 

What is EPDM Rubber?

 

EPDM stands for Ethylene Propylene Diene Monomer. Regarding rubber material, EPDM is one of the most popular materials. EPDM rubber is primarily designed to be resistant to weathering and ozone. Because of this, this rubber material is a preferred choice for outdoor sealing.

 

One of the best benefits is that EPDM is water-resistant. In contrast to other rubbers, EPDM is impressive in working in wet conditions. As a result, people prefer EPDM for applications involving water and steam exposure. In addition, EPDM rubber is flexible and maintains the same behavior in diverse temperature ranges.

 

EPDM is a great outdoor choice because of its UV, ozone, and water resistance balance. Some critical properties of EPDM are as follows:

• EPDM rubber does not deteriorate when exposed to direct sunlight for long. It is also ideal for people exposed to ozone. You’ll not see it crack or weaken, which is perfect if you put it outdoors.
• EPDM rubber also performs exceptionally well with water and steam.
• This rubber material is flexible at a wide range of temperatures.
• EPDM has reasonable heat stability, operating between -40 to 150 degrees Celsius.

 

EPDM rubber products find extensive uses in outdoor settings. They can be used on roofing membranes, window seals, and plastic playground areas. Also, people use this rubber material widely in HVAC and potable water systems. One place where you won’t find EPDM rubber, though, is in oil or aggressive chemical handling. Note that it can not withstand petroleum-based fluids.

 

FKM vs EPDM: Key Differences

 

If you are on this page, you might be looking for the right choice for your project. This choice usually comes down to knowing the pros and cons of each rubber. Here are some of the most important differences that will help you choose the right option for your project.

 

FKM vs EPDM Rubber: Chemical Resistance

 

Are you working with harsh chemicals or things made from oil? FKM rubber often replaces many rubber types in these situations. It is specifically known for its fantastic chemical resistance and is frequently used with oils, fuels, and industrial chemicals.

 

In contrast, EPDM is not very resistant to oils and fuels. The only substances that this rubber can withstand are alcohol, weak acids, and alkalis. EPDM exposure to oils or hydrocarbon-based fluids will quickly break it down.

 

So, FKM is the one you should use if you have to work with oil, grease, or fuel. However, EPDM might be a better choice if you work in a place with only light chemicals.

 

FKM vs EPDM Rubber: Temperature Resistance

 

The next thing you can consider is the temperature rating. Indeed, FKM is the winner here. It is widely known that FKM rubber products are highly resistant to heat. Usually, FKM rubber seals can endure heat up to 250 degrees Celsius. FKM is typically an ideal option for places that generate high heat.

 

EPDM, on the other hand, has its temperature limits. It can generally withstand 150 degrees Celsius, so this rubber is a good choice for low—to moderate-temperature applications.

 

EPDM vs FKM Rubber: Weather Resistance

 

Except for chemicals and heat, you should also consider the factor of weather or environment. Regarding exposure to weather elements, EPDM is hard to beat. This rubber material is particularly suitable for outdoor applications.

 

On the other hand, FKM can not endure prolonged UV and ozone exposure. It doesn’t hold up quite as well in long-term sunlight exposure as EPDM. Therefore, if your application faces limited or no direct light, FKM can work fine.

 

EPDM vs FKM Rubber: Water Resistance

 

Water and steam can often be very problematic. In this case, the material’s water absorption rate is very important. EPDM has a particular reputation for its water and steam impermeability. Due to this, it is used in plumbing and heating/ventilation/air conditioning applications. This rubber is also prevalent in sealing and gasket jobs.

 

FKM, however suitable for oils and fuels, is not favorable for water and steam. Exposure to long periods of a steam environment degrades FKM progressively with time. Because of this, EPDM seals and gaskets are better for plumbing, water treatment, and steam.

 

FKM vs EPDM rubber: Cost and Availability

 

Regarding price, EPDM rubber is the winner against FKM rubber. The cost of EPDM rubber is less than that of FKM rubber, so EPDM is actually very feasible for any project. For applications where EPDM can handle the job, choose FKM over it. EPDM is also easily obtainable and highly inexpensive, mainly used in large quantities.

 

However, FKM is more chemically stable and heat-stable than EPDM rubber. Of course, it is a premium version. Even if it may not be as accessible as EPDM, it has the advantage of being perfect for extreme conditions. It is expensive and not much more available than EPDM.

 

FKM vs EPDM Seals: Which to Choose?

 

You are already familiar with the critical properties of EPDM and FKM rubber. When you choose between these two, you must identify the pros and cons of each material. You know each rubber here has its strong suits and drawbacks.

 

Pros and Cons of FKM Seals

 

Pros

FKM seals work well in harsh environments. Their greatest strength is their resistance to chemicals, lubricants, and fuels, making them ideal for the automotive and aerospace sectors.

FKM seals can resist temperatures up to 250 degrees Celsius. It won’t break in high-heat environments. As a result, you can get a reliable performance in applications.

 

Cons

FKM rubber seals are often more costly than EPDM rubber seals, which may disadvantage cost-conscious applications. They also have reduced water resistance. Thus, they may not be the greatest option if your application requires a lot of water or steam.

 

Pros and Cons of EPDM Seals

 

Pros

EPDM rubber seals work excellently against weather exposure. They resist UV radiation, ozone, and normal outdoor conditions. Consequently, EPDM materials are widely used in HVAC, sealing, and plumbing applications. EPDM is also relatively cheap and flexible.

 

Cons

EPDM rubber seals are not oil-friendly. If exposed to petroleum-based substances, EPDM will degrade quickly, making them unsuitable for fuel systems. Also, EPDM rubber is not as heat-resistant as FKM rubber. While EPDM is okay to use at moderate temperatures, the FKM rubber seal is better for high heat.

 

Contact Us Today!

 

okin Rubber produces all types of rubber seals and gaskets. EPDM and FKM rubber seals are two of the popular ones. You can find our customer support team if you need EPDM

EPDM and silicone are two popular rubber materials. We use them in our houses, cars, and even factories. They have many uses, but sealing doors and windows is the most common. Besides, EPDM and silicone gaskets are widely used in machinery for better performance. Whether it’s keeping rain out of a car or sealing medical equipment, each has a specific role. But how do you know which is the better fit for your needs? This EPDM VS Silicone Rubber Guide can help you in your journey.

 

Seal strips and EPDM rubber extrusion profiles are the main products of EPDM and Silicone. These two rubbers are both trendy here but have distinct properties. Think about where you’ll be using these profiles. Will they be exposed to the elements or high temperatures? Do they need to be flexible or exceptionally tough? You should ask these questions; we’re here to help answer them.

 

This article closely examines EPDM and Silicone side by side. We’ll look at how well they handle temperatures and oil, the weather, and their cost. By the end, you’ll know how strong each rubber is. This way, you can pick the one that will work best for your job.

 

What is EPDM Rubber?

 

EPDM stands for Ethylene Propylene Diene Monomer. People often know this rubber as EPDM, though. It is a synthetic rubber great for its incredible resilience. If you’re looking for a material that can withstand the test of time outdoors, EPDM is often a go-to choice. It is mainly made to endure even in the harshest conditions.

 

Anyways, EPDM rubber is composed primarily of ethylene and propylene. A small amount of diene monomer increases strength and flexibility during manufacturing. This combination typically makes EPDM durable and resistant outdoors. The critical properties of EPDM are:

(1) EPDM is highly flexible. It remains elastic and bendable even in colder temperatures.

(2) This rubber is highly resistant to UV and ozone. It doesn’t crack or weaken under sunlight.

(3) EPDM is one of the most water-resistant rubber, which is why it works great outdoors.

 

Generally, three types of EPDM rubber are solid, foam, and sponge. Solid EPDM rubber is dense and durable. It is ideal for use when it requires high wear resistance. On the other hand, Sponge EPDM is softer and more compressible. It is popular for creating seals. Foam EPDM is lightweight and can be easily shaped. As a result, people often use it for padding and insulation.

 

Where Will You Find EPDM?

 

EPDM is a trendy rubber material. You can find it in many uses near you. They are commonly used in automotive, construction, household items, electrics, etc. Check out the following table to learn more about its applications.

 

Industry	Reason for Using EPDM	Examples
HVAC	High flexibility, excellent weather, and UV resistance	Seals for duct and insulation, EPDM sponge rubber tubing, Extruded EPDM rubber, EPDM rubber sheets
Electronics	Electrical insulation, chemically stable	Protective enclosures and cable insulation, EPDM self-adhesive rubber seal, Dense EPDM rubber tubing, EPDM sponge rubber extrusions with 3M tape
Automotive	Temperature, UV, and ozone resistance	Weather seals, door and window trim, Car door rubber seal, extruded EPDM door and window rubber seal strip, automotive EPDM solid rubber glazing gaskets
Construction	Durable, weatherproof, resistant to UV	Window and door seals, roofing membranes, extruded EPDM window seal, EPDM rubber seals, closed cell extruded seal, EPDM foam rubber seal
Machinery	Chemical resistance, flexibility in harsh conditions	Gaskets, hoses, and vibration-damping mounts, EPDM O-ring cord, solid square EPDM rubber cord, dense EPDM rubber tubing
Masking	Heat resistance, stable at high temperatures	High-temperature masking for painting or powder coating, EPDM E-shape rubber seal strip for cool room door, EPDM P-section rubber extrusion seal, T-shaped rubber seal strip for truck scale

 

What is Silicone Rubber?

 

Silicone rubber is another popular rubber material. As the name implies, its main ingredient is silicon. During manufacturing, silicon rubber is made with oxygen, carbon, and hydrogen.

 

Silicone is especially famous for its durability and flexibility. It’s more flexible than other rubber, so it works better in hot and cold weather. This is why silicone rubber is great for withstanding high temperatures. Temp tolerance is important, but that’s not all.

 

(1) Silicone rubber is non-toxic and hypoallergenic, which means it can be used in contact with skin or food. However, you must be careful when choosing the appropriate food-grade quality.

(2) Silicone rubber is also resistant to water, UV rays, and ozone. As a result, silicone rubber products won’t break down or lose color over time, even outdoors.

(3) Silicone rubber is generally odorless, tasteless, and highly stable.

 

Silicone rubber comes in three main forms: solid, flexible, and liquid. Solid silicone is dense and durable. It can be used in situations where strength and longevity are important. Sponge silicone is softer and more compressible. It can be used to seal things and cushion them. Finally, liquid silicone is utilized in injection molding to produce rubber items.

 

Where will you find silicone?

 

Since silicone offers improved properties, it is used in various applications. The following table outlines the widespread applications of silicone rubber.

Industry	Reasons for Using Silicone	Examples
Medical Devices	Biocompatible, non-toxic, withstands sterilization	Platinum-cured silicone tubing, silicone sheets, silicone rubber strip
Food Processing	Safe for food contact, temperature-resistant, easy to clean	Platinum-cured silicone rubber cord, silicone sheets
HVAC	High-temperature resistance, durable for sealing and insulation	Silicone foam tube, silicone rubber strip
Electronics	Electrical insulation, heat resistance, UV stability	Silicone rubber strips, silicone sponge sheet
Industrial Sealing	Resilient under pressure, long-lasting, resistant to oils and chemicals	Silicone sponge sheets, silicone rubber sheets
Aerospace	Extreme temperature tolerance, ozone, and UV resistance	Silicone sponge extrusion, silicone foam tube
Masking	High-temperature tolerance, reusable, resistant to chemicals	Silicone sponge sheet, silicone rubber strip
Automotive seals	Weatherproof, UV and ozone resistant, durable for door/window seals	Silicone rubber strip, silicone sheets
LED Lighting	Water and dust resistance protects against environmental exposure	Silicone foam tube, silicone sponge extrusion

 

EPDM VS Silicone Rubber: A Technical Comparison

 

You have reviewed the details about the two popular rubbers: EPDM and Silicone. Each material has its characteristics, strengths, and weaknesses. This section will enlist which rubbers may be better suited for your project.

 

Temperature Resistance: EPDM VS Silicone Rubber

 

Both EPDM and silicone rubber are temperature-resistant. The number shows that EPDM has a temperature range of -50C to 150C. On the other hand, silicone has a temperature resistance from -60C to 230C. Silicone rubber has a higher temperature resistance when applied than other rubbers.

 

In different industries, heat or color are common occurrences. In such situations, temperature resistance becomes a must. Silicone rubber proves excellent thermal stability. It is best suited for the food, medical, and automotive industries. Silicone is applied for engine compartments, food processing seals, and the production of medical application products.

 

EPDM is also heat-tolerant and works great outdoors. It is used for doors and windows, flooring and roofing, and electrical insulation.

 

Oil Resistance: Can They Stand Up to Chemicals?

 

Oil resistance is another factor when discussing EPDM vs. silicone Rubber. If you’re in the industrial sector, chances are your application will come into contact with oils or hydrocarbons. Here’s where the differences between EPDM and Silicone become an issue. EPDM rubber has reasonably low resistance to oil, grease, and similar substances such as hydrocarbons.

 

Whereas silicone is inert to oil. The level of resistivity mainly depends on its formulation. Standard silicone may not perfectly resist oils, but unique grades of silicone can.

 

So, when is EPDM the better choice? If your application requires water, acids, or alkalis, you need to know that EPDM may perform even better.

 

EPDM VS Silicone Rubber: Tear Strength

 

How durable are they? Durability becomes an issue, especially when sealing things. In sealing, you will often need extrusion profiles. However, EPDM offers greater tear strength than silicone, which people use in many applications.

 

Silicone, though generally less resistant, compresses in other areas. In high-heat applications, it offers excellent services. Also, in indoor sealing, silicone rubber extrusion profiles are widely used.

 

EPDM VS Silicone Rubber: Flexibility in Motion

 

Elongation is the rubber’s capacity to become more rigid or extend, providing resistive force before failure. It is usually required for applications with mechanical parts. EPDM rubber, which is more flexible than silicone Rubber, offers excellent services.

 

Silicone rubber exhibits good elongation, though the amount of elongation depends on temperature. Although less flexible than EPDM at lower temperatures, it remains stable over a wide temperature range. Therefore, if your application field includes issues like temperature and impact, you can select silicone rubber rather than EPDM.

 

EPDM VS Silicone Rubber: Which Longer Outdoors?

 

Perhaps the most valuable feature of EPDM is its relatively high level of wear and ultraviolet protection. It can also withstand light effects, such as sunlight, ozone, and moisture, even when exposed for long periods. Its typical uses mainly include outdoor applications. You can use it to seal your windows, roofing, and any environment with UV exposure.

 

Moreover, silicone has comparatively lower resistance than EPDM when exposed to direct sunlight for a long time. However, silicone rubber extrusion is ideal for indoor sealing.

 

EPDM VS Silicone: Budget Matters

 

EPDM rubber costs are, in general, lower than those of silicone. If you are working on a large project and need bulk quantities, considering the price is a concern. If your project doesn’t require extreme temperature or oil resistance, EPDM can save you a lot of cost. It is cheap, resistant to weather conditions, and much more flexible than the cement option.

 

Silicone is worth purchasing if your project involves critical conditions. Medical, food processing, or specialized manufacturing industries often require silicone rubber extrusion products.

 

Get in Touch With Us!

 

Do you still have questions? Contact our customer team to learn more about EPDM and silicone rubber extrusion profiles. We produce a wide range of EPDM and silicone rubber extrusion products, and our team of experts is always happy to help!

Silicone rubber extrusion is one of the most used rubber product-making processes. This method has been widely used in factories since the 18th century. Silicone rubber extrusion generally shapes silicone and gives it a continuous length.

 

The machine used in this process is called an extruder machine. It has a central chamber, a hopper, and a die opening. The process first takes the raw material through a hopper. Then the screw inside the main chamber pushes it forward. There’s a heating chamber that melts or smoothens the silicone. Melting the silicone helps create shapes according to the shape of the die.

 

This method produces flexible, robust, and heat-resistant silicone parts. It is simple, affordable, and creates perfect silicone profiles—extrusion is becoming increasingly common.

Extruded silicone products have many applications. One of the most popular products is silicone rubber seal strips. This product is widely prevalent for sealing machines, boats, and even in your car. Other products are silicone sheets, tubes, and gaskets.

 

This article mainly focuses on how these extruded silicone products are made. You will go through every step followed in factories. Note that this process might be similar to other rubber types.

 

How are Silicone Extrusion Profiles Made?

 

Silicone is a highly flexible, heat-resistant, and durable rubber. One of the best things about silicone is its temperature rating. It typically melts at 80 to 220 degrees Celsius. So you can realize that your silicone rubber extrusion process must be able to handle it. Most silicone extrusion manufacturers follow a few steps. These steps are all professional level.

 

Step #1 Preparation

 

Preparation is the first crucial step in the silicone extrusion process. Your application determines the silicone substance you use. Extrusion uses two forms of silicone: solid and liquid. People like solid silicone because it is long-lasting and heat-resistant.

 

Designing the extrusion die comes next and is also absolutely vital. You must ensure it is built with excellent tool steel and accuracy. Usually, the die shapes and sizes of the finished extruded silicone product. To make a new product, you must create the custom dies first.

 

The next important thing to do carefully is to set up the extrusion equipment. To prevent contamination, you must clean the machines before the actual process. You should also focus on expert calibration of the device. Once everything is prepared, you can start the process.

 

Step #2 Material Mixing and Compounding

 

Step #1 includes this one as well. We included it separately since it is among the most critical stages in the silicone extrusion process.

 

As you know, extruded silicone profiles come in various colors. Also, some profiles are strong, while some are highly heat-resistant. You can determine what raw materials you must use to get these properties at this stage.

 

You can use colorants, stabilizers, and flame retardants when making the mixture. Colorants generally give the material its look. Stabilizers improve the durability of the extruded silicone products. However, flame retardants are crucial for safety in many applications.

 

This whole process is done in a controlled environment. Some call it a milling process, while others call it a compounding process. Whatever the name, it involves homogenizing the silicone mixture.

 

Step #3 Silicone Rubber Extrusion Process Setup

 

After preparation, you must apply the appropriate setting to the production line for silicone rubber extrusion. An extruder usually has several components: a hopper, barrel, and dies. These three are the main components, though. There are other critical parts as well.

When you put the raw or compounded silicone into the hopper, it goes directly into the barrel. Inside it, a screw pushes them forward.

 

Note that every factory operates the extrusion process in a controlled environment. One critical part of this process is temperature adjustment. Therefore, you must check the working temperature. At the same time, pressure checks are also necessary. Finally, you can adjust the speed. Note that the appropriate speed depends on the thickness and profile shape.

 

Note that you must synchronize the above factors properly. If not, the final product might not match the design. Therefore, in factories, experts always balance them. It typically helps them ensure the quality of the silicone extruded profiles.

 

Step #4 Heating and Silicone Extrusion

 

Let’s come to the actual process. The silicone rubber extrusion operation can begin once everything is ready. Feed the hopper either raw or processed silicone rubber first. Gradually, the hopper will feed them into the extruder machine—where a screw exists. This screw’s primary use is to advance the material.

 

This extruder machine usually has a way to control the heating. The temperature needs to be high enough to melt the silicone rubber. Why is melting or softening silicone necessary? There are several reasons. The important one is that it helps silicone pass smoothly through the die. The silicone rubber also needs to be continuously heated to maintain its features.

 

Step #5 Cooling and Post Curing

 

Once the newly shaped silicone rubber comes out of the die, it needs cooling. Note that the extruded silicone profiles are long and continuous. Therefore, the cooling chamber must be long enough to cool and harden the extruded silicone.

 

There are various types of cooling methods. The process can be done by air, water, or passing the profile along a conveyor system. Whatever the process, the goal is to stabilize the shape quickly.

 

As we mentioned earlier, many silicone-extruded products exist. Some are strong, while others are flexible. Again, some can endure high heat, while others cannot. So, after cooling your silicone extrusion profiles, they might need a post-curing method.

 

A post-curing method is typically a heating process. Here, the cooled profiles are further heated to gain the exact properties as needed. Note that this heating process must be accurate; otherwise, your profiles may be defective. In general, the post-curing method improves the durability and strength of the material. Also, it maximizes flexibility. Note that this process improves the high heat resilience of the silicone extrusion profiles.

 

There is another benefit to the post-curing method. It mainly reduces the risk of compression setting. FYI: Compression set is the ability of a material to return to its original shape after being compressed.

 

If you don’t do the post-curing, the silicone rubber extrusion products may wear out quickly under pressure. Therefore, every factory ensures proper control of both cooling and post-curing.

 

Step #6 Cutting and Final Processing

 

After completing the cooling and post-curing process, you can cut the profiles into various lengths or roll them up to ship in bulk. Machines usually do this work, and because of this, they always have consistent cutting quality.

 

After cutting, your silicone rubber extrusion profiles may need extra finishing. This post-processing generally improves your product’s look. People mostly use methods like surface treatments, trimming, and co-extrusion.

 

Surface treatments mean treating or processing the material’s surface. For silicone rubber extrusion, you can smooth it or add a protective coating. Trimming, on the other hand, cuts the excess part from the profile. Sometimes, you may also need co-extrusion or multi-extrusion processes. You will mostly need it for reinforced or multi-layer extrusion silicone profiles.

 

Step #7 Quality Control

 

In this step, the factory engineers check whether the product meets the standards. During this step, different testing methods may be used. The first is to examine the profile’s measurements. Second, surface checks look for cracks, air bubbles, or unevenness. Third, different tests check the profile’s stretch and tensile strength. Other tests are also done, such as chemical protection tests.

 

Once tested, the factory generally creates a quality certificate, which is later delivered to the customer. Some standards, such as FDA and ISO, are followed when manufacturing.

 

Step #8 Packaging and Distribution

 

Customers usually check a few things during delivery. The transportation and compliance paper lists the industry standards. The quality certificates show that the product is of good quality. High-quality packaging ensures that the shipping is safe, especially for foreign delivery. Finally, they check the quantity of the delivered product.

 

A reputable factory like okin Rubber always ensures the customer meets these requirements. They also ensure the packaging and distribution are done accurately and safely. The manuals are provided so the customer can understand how to use them properly.

 

Custom Silicone Extrusion at okin Rubber

 

Custom silicon extrusion is a process of making unique profiles or designs. In other words, there is no product replacement or standard dies for custom products. Custom silicone rubber extrusion is becoming increasingly popular as the need for unique tools has increased dramatically.

 

Custom silicone rubber extrusion has several benefits. First, it can meet diverse customer needs. Second, it offers you more precise solutions and design versatility. Although the initial cost might be higher, you can get an active market response.

 

At okin Rubber, you can get custom silicone extrusion services. The company provides high-quality silicone profiles for every industry. All you need to do for custom products is provide your project’s data. If your design is ready, you can save time and investment. It’s also okay not to have the design ready; their expert engineers can create custom dies based on your data.

 

Get in Touch With Us! Ready to start your project? Contact okin Rubber today. We’re eager to help with your custom silicone extrusion needs.

Marine conditions are extremely severe. Boats, ships, and other vessels are constantly exposed to seawater and sunshine. Marine rubber is one of the most important materials utilized on these vessels. If the rubber is incompatible with the aquatic environment, it may disintegrate quickly. Thus, choosing the right maritime rubber is indispensable.

 

Rubber on vessels can be used for many applications. Marine rubber, for example, can be used for sealing or insulation. Its main purpose is to protect and provide cushioning during docking or moving on the water. A wrong choice of maritime rubber cannot guarantee long-lasting services. It may also pose many safety risks. Therefore, making the correct choice is critical.

 

What is marine rubber, though? What can you do to make sure you pick the right type for your needs? This article will talk about maritime rubber, including the different kinds, how they work, and what you should think about when choosing one.

What is Marine Rubber?

 

Marine rubber is any rubber material suitable for the aquatic environment. Understanding different marine conditions is equally necessary to understanding different coastal rubbers.

 

A marine environment can be oceans, seas, or coastal areas. The water can be either salty or sweet. The environment might be harsh in different situations. For example, sea or ocean water is extremely salty and corrosive. Besides, all marine situations often face threats like saltwater damage and barnacle growth. Wave impact is a common case in oceans and seas.

 

Moreover, during docking, vessels often face abrasions and impact with docks or piers. Mooring line stress is also critical here.

 

To avoid these circumstances, choose robust materials when building vessels. Marine rubber is a critical component in this scenario. Marine rubber has a basic purpose: protection. It can be used to seal and absorb collisions. Maritime rubber primarily ensures that your vessel remains operational even in difficult scenarios.

 

Characteristics of a Marine Rubber

 

Knowing the characteristics of marine rubber is essential when choosing the right one. When you have ideas about it, you can quickly decide between different coastal rubbers. Below, for your reference, are some of the key properties when choosing a marine rubber.

 

(1) The first feature to look for in marine rubber is its water resistance. As you are aware, your vessel will always be on the water, so the water absorption rate is an important consideration.

(2) Since Marine vessels are usually exposed to the outdoor environment, they must be resistant to UV radiation. However, for indoor applications, you might use rubber that is not very UV-stabilized.

(3) Another aspect to consider here is saltwater resistance. Sea water is usually aggressive to all types of rubber products. Since its action is corrosive, rubber products’ deterioration is accelerated. Therefore, marine rubber must be saltwater resistant.

(4) You must also look for flexibility in maritime rubber. This becomes a prime concern when it comes to docking or mooring. At this time, the vessel you are sailing may hit other boats or the dock unexpectedly. Marine rubber must be flexible enough to absorb this impact.

(5) Marine ships encounter rocks or sand when colliding with docks. Therefore, maritime rubber must be abrasion-resistant.

(6) Oil-contaminated water is present in some marine areas, such as those surrounding fuel lines or machinery. In this situation, marine rubber must be oil-resistant. Besides, different hoses and seals used on marine vessels may often encounter oil substances.

(7) The ocean water may be as cold as -2 degrees to 56 degrees Celsius. You must choose a rubber that can smoothly work around this temperature range.

 

Best Marine Rubber Used in Aquatic Applications

 

The right rubber plays a critical role in aquatic environments. Out there, you will find a wide range of synthetic rubber. Choosing between these vast options could be challenging. Let’s make this easier for you.

 

NBR, Silicone, and EPDM rubber are three of the most noticeable options for marine applications. They’re all good at different things. Before choosing which one to use, you should think about the use and the surroundings.

 

Nitrile rubber, or NBR, is one of the most popular rubber used in marine applications. It is mostly popular for resisting oils and fuels. Most fuel hoses and seals in vessels are made of NBR rubber. However, when it comes to UV resistance, NBR lacks a few advantages. So, you can only use it where there is limited UV exposure.

 

Silicone is a generic term for any applications that involve severe temperatures. One of the best features of this rubber is its stability. It can maintain flexibility in both hot and cold situations. Most seals and gaskets that face wide temperature variations can be made of silicone rubber. Also, silicone rubber is highly resistant to UV light, so you can also use it outdoors.

 

EPDM, or Ethylene Propylene Diene Monomer, is known for its superior UV resistance and excellent resistance to saltwater corrosion. These two features specifically make EPDM rubber ideal for marine weather stripping. EPDM is a great all-around marine rubber.

 

Application of Marine Rubber

 

Marine rubber is a versatile material. It can be used in many places on a vessel. Marine rubbers are widely used for different purposes. Let’s look at some common uses.

 

Hull Fittings

 

The hull is a vessel’s body. It is generally watertight, and hull fittings play a crucial role in creating watertight seals for openings. Openings can be of various types: windows, hatches, or doors. A good seal ensures that the boat remains watertight, even in rough seas.

 

Plumbing System

 

Rubber is also widely used in marine plumbing systems. Many hoses and seals in the piping system are mostly made of maritime rubber. Since marine plumbing is exposed to both saltwater and freshwater, rubber can be the ideal option. Nitrile, neoprene, and EPDM rubber are common choices for this application.

Marine Rubber Seal

 

A marine rubber seal is also known as marine weather stripping. Rubber is the go-to material for sealing, whether it’s for the engine room, fuel tanks, or windows. Rubber weather stripping is an ideal option. Its main job is to keep out water, air, and dust, ensuring the vessel’s components are protected from the external environment.

 

Insulation

 

Marine rubber is also widely used in insulation works. It is often used around wiring and electrical systems. Since salt water is a good conductor of electricity, the wiring in your boat must be well-protected. In such situations, maritime rubber is prevalent.

Bumpers and Trim

 

Marine rubbers are also widely used for bumpers and trim around the edges of boats. These are the most visible applications of marine rubber. Marine fenders typically absorb impacts and prevent damage when docking. Besides, it also protects your boat from scratches during close contact.

 

How to Choose the Right Marine Rubber

 

Marine rubbers are widely used in many applications on ports and vessels. Each application needs different marine rubber. But how do you know which rubber type is the best? Although you have already covered the core concept of this article, this section will organize the process of selecting the right material.

The Purpose of Rubber Gaskets

 

Maritime rubber has many applications, including sealing, insulation, bumpers, and fenders. For example, rubber gaskets seal connections. Rubber trims or marine weatherstripping keep water from leaking. Bumpers and fenders prevent vessels from damage while docking or in severe seas.

 

Each purpose needs a specific type of rubber. Therefore, before selecting marine rubber, always consider its intended use. What will it be protecting? How much wear and tear will it endure?

 

Materials to Consider

 

Once you know the purpose, it’s time to choose the material. Not all rubber is created equal. Different rubbers perform better in specific situations. For example, NBR rubber is perfect when you need oil or fuel resistance.

 

EPDM rubber is superb at withstanding weather and UV light, but silicone rubber is better when temperatures are very high or very low. Natural rubber is often preferred for marine fenders, which are usually made of natural rubber with a certain amount of SBR.

 

Rubber Gasket Design

 

Once you have decided on the material, consider the type and design of the marine rubber. It’s not enough to pick the right material; it also needs to fit your vessel properly. Is the gasket shape compatible with your boat’s fittings? Can it provide a tight, durable seal? Even the best material won’t work well if the design isn’t right for your specific needs. Always ensure the gasket matches the vessel’s specifications and installation process.

 

Choosing the right Rubber Marine Fenders

 

A marine fender is an important piece of gear for a boat. It keeps your boat safe from heavy hits. Marine fenders that aren’t made well could put your boat at risk. So, picking the right boat fenders is very important.

 

Factor #1. Consider the vessel’s dimension. A larger boat needs thicker and stronger marine fenders because it produces more impact. On the other hand, smaller vessels produce less impact, so a thinner and less strong fender is OK.

Factor #2. Consider the type of the port. Is it a busy or industrial port? Consider the amount of wear and tear the marine fenders will experience.

Factor #3. Think about the type of marine surroundings. Are the fenders going to be in salt water or fresh water? The material you pick should be able to handle these situations.

Factor #4. consider how the fenders will be used during docking. Will the crew have proper guidance while berthing?

 

Get in Touch with Us!

 

For all types of marine rubber products, stay connected with the okin rubber factory. You are always welcome to our customer support portal.

Rubber extrusion is the most used technique in rubber manufacturing. Although rubber molding is also used in many situations, the rubber extrusion process is the most popular.

 

The rubber extrusion process is widely used in many industries, from the car industry to construction. Why is rubber extrusion better than molding? There are several reasons, among which high productivity is the primary one. Besides, this method is also flexible and produces durable rubber parts. You will learn more about it in the following few sections.

 

This article mainly focuses on the fundamentals of the rubber extrusion process. You will learn what it is and what the step-by-step factory process is. This step-by-step process tells you what factors to consider when choosing suitable rubber products. In addition, you will learn how rubber extrusion differs from rubber molding.

 

What is the Rubber Extrusion Process?

 

Rubber extrusion is a rubber manufacturing process often used in rubber industries. This method involves shaping rubber into various shapes, mostly rubber profiles.

 

According to the definition, a rubber extrusion process produces rubber profiles with the same cross-sectional area. Because of this method, rubber profiles get several properties. They are:

 

(1) This process produces long, continuous lengths of rubber profiles. Because of this, the consistency of the profile remains the same along the entire length.

(2) You can create complex shapes using custom dies.

(3) You can also improve the softness of the rubber product. It depends mainly on the curing method and type of rubber used.

(4) This method produces long, unbroken rubber profiles with the same cross-section area. This type of profile is especially ideal for sealing. You can use it as weatherstripping or gaskets.

(5) The rubber extrusion process typically allows you to make high production.

 

Rubber Extrusion Process Applications

 

The rubber extrusion process produces many everyday products. One of the best examples is seal strips, which people also recognize as weather stripping. This product is widely used in doors and windows. Rubber tubing is ideal for fluid transfer. Besides, various gaskets used in machines or equipment are also made of rubber.

 

Why Rubber Extrusions are better than molds?

 

Both methods are widely popular in the rubber industry. Yet, they have some suitability issues. In this section, you will learn in which case the rubber extrusion process is a better option.

 

Reason #1. Cost-effective and Faster Production for Long Runs

 

As you are aware, rubber extrusion is a continuous process. When you start the gadget, it will continuously manufacture lengthy rubber profiles. In contrast, you must push the molten rubber into the mold for each product in rubber molding. As a result, the rubber extrusion process is both cost-effective and efficient.

 

Reason #2. The Most Efficient Method for Simple Shapes

 

The rubber extrusion method is suitable for a moderate level of complexity or simplicity in the particular product’s design. It can be applied to make continuous seals, gaskets, and tubing. On the other hand, rubber molding is ideal for creating intricate rubber product shapes.

 

Reason #3. Almost Zero Material Waste

 

The rubber extrusion method produces almost zero waste. The rubber extruder pushes the molten rubber into the die, producing long rubber profiles. Later, you can cut them to length based on your needs.

 

Reason #4. Ability to Make Custom Lengths

 

As already said, rubber extruders produce long rubber profiles. There are no specific lengths for this method. Instead, you can choose it based on your project needs. On the other hand, rubber molding can not offer this benefit.

 

Reason #6. Less Tooling Cost

 

Rubber extrusion is a significantly cheaper technology than rubber molding. You’ll also require less money for tooling. However, rubber molding is appropriate for intricate designs. As a result, the tooling design is likewise pricey.

Step-By-Step Rubber Extrusion Process

 

Throughout our discussion, we’ve provided insights into how the extrusion process works. You will learn this section step by step. In each phase, you may picture how the production process works. You can also look at the aspects that affect the overall quality of your products.

 

Step #1 Material Selection and Preparation

 

First, we have to select suitable rubber material. You might have endless choices. For instance, silicone rubber is more suited to high-temperature applications than EPDM rubber, which is more suited for applications such as weather strips. Neoprene and nitrile may be your best chances at standing up to chemicals.

 

Step #2 Feeding the Extruder

 

After the suitable rubber has been chosen, it is put in the extruder hopper. You will find three main parts if you disassemble a rubber extruder machine. (1) The insertion chamber, (2) the processing chamber, and (3) The extrusion chamber. You can find the hopper in the first chamber.

 

Step #3 Rubber Softening and Mixing

 

Once the hopper takes the material, it passes to the processing section. In the processing section, there’s a large screw which gradually pushes the rubber forward. Here, there’s also a consistent heating system. So, When the rubber moves forward, at the same time, it gets softer because of the heat.

 

Step #4 Extrusion Through Die

 

The rubber extruder machine then gradually pushes the soft rubber material to the die. Because of the die, the rubber gets a specific shape with the same cross-section area. It continues to do so until the rubber inside the machine is finished.

Step #5 Metal Insertion (If needed)

 

Rubber extrusion profiles are used for many purposes. They seal doors, windows, and even heavy-duty machinery. So, the strength of the rubber profile is a very important parameter here. You can achieve this by simply inserting metals in the rubber profiles. And you can do it during this rubber extrusion process.

 

Step #6 Vulcanization or Curing

 

Once the extruded rubber comes out of the rubber extruder machine, it remains soft. In this situation, a unique method called vulcanization—also known as a curing method—is used to strengthen these rubber profiles.

Step #7 Multi-extrusion (if required)

 

Sometimes, your product may need more than one color or material. The best example is the dual durometer rubber extrusion profile. Besides, many rubber products require more than one rubber extrusion process.

 

Step #8 Cooling

 

After the vulcanization process, cooling begins. This generally cools down the rubber profile and makes it harder. To avoid defects, an appropriate cooling system must be ensured.

 

Step #9 Rolling

 

Finally, you can remove and roll the rubber profile for better packaging. You can also cut it to a specific length, but in most cases, people prefer rolling.

 

Which Rubber materials are Extrudable?

 

Several types of rubber are employed in the rubber extrusion process. Five are the most popular and widely used in making various rubber products.

 

#1. Natural Rubber

 

Natural rubbers come from rubber trees, although they need further processing after extraction. These rubbers are widely prevalent because they have excellent mechanical resistance, shock absorption, and high elasticity. Natural rubber is not suitable for chemical resistance.

 

#2. EPDM Rubber

 

EPDM rubber is one of the most popular synthetic rubbers. Its structure has three different polymers: ethylene, propylene, and diene monomer. EPDM offers excellent weather resistance, so people mostly prefer it for weather stripping.

 

#3. Neoprene Rubber

 

Neoprene is another popular name for synthetic rubbers. This rubber material is ideal for chemical, oil, and abrasion resistance. People mostly use this rubber for sealing gaskets and hoses. Neoprene may not work as expected under UV light. Besides, this rubber is comparatively more expensive than other types.

 

#4. Nitrile Rubber

 

Nitrile rubber is also resistant to oils and certain chemicals but may break in strong acids and bases. It is a popular option for fire-resisting applications and offers excellent strength, elasticity, and temperature resistance.

 

#5. Silicone Rubber

 

Silicone is one name for extreme temperature applications. The typical temperature rating ranges from -60°C to +230°C, making silicone the best option for extreme conditions. Besides, this rubber also works excellently in fire. People mostly use it to make hoses, seals, and gaskets.

Custom Rubber Extrusion Services at okin Rubber

 

okin Rubber is one of the best rubber extrusion manufacturers in the world. It owns over 100 pieces of rubber manufacturing machinery. The company guarantees that it uses 100% new material for each product it delivers, Which Makes its Products high-quality and durable.

 

This company offers standard-size rubber profiles and custom rubber extrusion services. It will guide you through every step, from design to prototyping to production and delivery. You can also create plastic profiles at okin Rubber Factory.

 

Conclusion

 

Rubber extrusion is a crucial manufacturing process used in many rubber industries. This process generally creates long rubber profiles. Because of this, the method offers a wide range of benefits, which we have discussed in this article. These benefits make the rubber extrusion process a better option than rubber molding.

 

The rubber extrusion process is very simple to understand. It begins with feeding the machine and ends with cooling the rubber profiles. In the whole process, there’s no need for labor operations. However, you might need extra labor for multi-extrusion, metal insertion, or co-extrusion processes.

 

If you have any questions, feel free to reach out to okin Rubber’s customer service point. We have a team of experts who are always happy to assist you.

Indeed, rubber doesn’t last forever. Over time, it degrades and wears out. In terrible conditions, it may crack or snap. This aging sometimes looks like rot, so people named it Rubber Dry Rot.

 

Have you ever replaced an old rubber seal strip on a door or window? The windows or doors may not have been used for a long time, but they are worn or cracked. They are no longer as flexible as they used to be and break easily with a slight bend. This is basically called dry rot.

 

 

In this article, we will discuss this topic briefly. You will learn why or how rubber dry rot happens and how to protect your rubber seal. We will also discuss other problems with rubber. This guide will help most home or car owners. Those involved in the rubber seal strip business will also benefit from this.

 

 

Does Rubber Rot? What is Rubber Dry Rot?

 

 

Rubber dry rot doesn’t mean the actual rot we see on organic materials. Generally, fungi decompose the organic matter and produce rot. In the case of rubber seal strips, fungi can not decompose the material, so rubber doesn’t rot. However, the name “Rubber dry rot” originally comes from the dry, worn-out condition of the rubber.

 

 

Rubber is a very durable material. People often prefer rubber over plastics because it is flexible, elastic, and resistant to wear. Synthetic rubber is made through various chemical processes, so rotting is impossible. When a rubber seal strip wears out, it loses its flexibility and breaks with a slight bend. You may sometimes observe cracking, flaking, or completely drying.

 

 

What Causes Rubber Dry Rot?

 

 

Rubber dry rot is a type of rubber deterioration problem that may happen due to several factors. You must know these factors to take the necessary steps for your rubber products.

 

 

Rubber Seal Strips Age

 

 

One of the most common reasons rubber seal strips deteriorate is their age. Every rubber product has its prescribed lifespan. As you know, rubber materials degrade over time. When they reach their lifespan, they show symptoms of deterioration. If you still use the rubber seal strips, it shows dry rot.

 

 

You can not stop this natural aging process. However, you can slow it down by preventing heat, moisture, or UV radiation.

 

 

High or Low Temperature

 

 

Temperature is one of the most crucial factors to consider. Every rubber weather stripping has a specific temperature rating. For instance, EPDM can remain stable from -50°C to +150°C (-50F to 302F). High heat can degrade your rubber seal strip if the working temperature exceeds this range.

 

 

What happens when the temperature goes beyond the limit? It typically softens the rubber. Then, the high heat gradually deforms the rubber’s shape. When it happens a number of times, the cracking appears.

 

 

Exposure to UV Radiation

 

 

The sun is the primary UV light source, particularly damaging rubber products. It breaks down the molecular forms of rubber compounds, called photodegradation. Because of this, the rubber seal strip loses its flexibility and strength, eventually leading to cracks.

 

 

As time passes, these cracks penetrate deeper into the material. Later, you can see the dry rot on rubber seal strips. FYI: UV rays can be made through various ways. It is not just limited to sunlight. Therefore, you must check where your place is free from UV radiation.

 

 

Unfavorable Weather Conditions

 

 

Rubber seal strips are often used outdoors. They frequently face varying weather conditions. Sometimes, they face heavy rain, while sometimes, they face high snow. Wind and humidity are regular cases. As you already know, extreme temperature is one of the main reasons for dry rot on rubber materials.

 

 

Besides, moisture in the air can cause the rubber to sell and shrink as it dries. In this way, the cracks are formed. On the other hand, wind can also carry dust or other particles. These weather conditions can lead to dry rot on rubber weather stripping as time passes.

 

 

Lack of use and Inaccurate Storage

 

 

This is an interesting reason why most rubber weather stripping shows dry rot. When the rubber is not used regularly, it can lose flexibility and become stiff.

 

 

Additionally, inappropriate storage can also create rubber dry rot. Once again, if your storage facility involves high heat, moisture, or UV exposure, the rubber will quickly form dry rot. Therefore, you must find the best solution to store rubber seal strips. In this case, you can seek professional assistance at okin Rubber Customer Point.

 

 

Tips on How to Prevent Dry Rot in Stored Rubber Weather Stripping

 

 

You can now realize the seriousness of the rubber dry rot problem. Also, recovering once dry rot happens on the rubber is nearly impossible. So, you can take the necessary steps before this problem shows up.

 

 

Pointer #1 Keep It Away From Direct Sunlight And Keep It Cool

 

 

Sunlight is one of the main culprits in rubber drying out. UV rays break down the rubber’s structure and cause it to crack. To prevent this, you must choose a place away from direct sunlight. Try to avoid areas near windows or doors. You can cover the storage box to maintain a dark environment.

 

 

Pointer #2 Before Storing, Keep It Cool and Store It in A Dry Place

 

 

Before storing, make sure the rubber weatherstripping is cool. As you know, heat can accelerate the aging process. Moisture can cause the rubber to swell, weakening its performance. Both heat and humidity make the rubber more likely to dry rot. You must ensure proper ventilation in the storage facility.

 

 

Pointer #3 Try to Ensure a Consistent Temperature

 

 

Once again, heat can quickly deteriorate your rubber seal strip. Sudden temperature changes also cause the rubber to expand and contract. To prevent this, you can focus on controlling the temperature in the storage facility. In major hot/cold countries, you must avoid a place that experiences extreme heat or cold weather.

 

 

Pointer #4 Use an Airtight Bag to Store Rubber Seal Strips

 

 

When storing the rubber seal strip, you could use an airtight bag. An airtight bag can protect your rubber seals from air, moisture, and dust exposure. This simple step can eliminate the need to use rubber protectants.

 

 

Pointer #5 Use Rubber Protectants

 

 

If you want more protection, you could also apply a rubber protectant. However, people prefer rubber protectants for ongoing rubber usage.

 

 

Rubber protectants mainly create a light coating that prevents dry rot. It also keeps your rubber seal in good condition for future use.

 

 

Other Rubber Problems

 

 

Other than dry rot problems, you may also find other rubber problems. The causes or reasons for these problems are the same as for dry rot problems. Even the preventions are the same.

 

 

(1) Aging, environmental exposure, or chemical reactions create surface or deep cracks.

 

(2) UV exposure, pollutants, or chemicals cause the rubber to fade, yellow, or stain.

 

(3) Cold temperatures cause the rubber to stiffen or harden, reducing flexibility.

 

(4) Moisture causes the rubber to swell, or drying brings back shrinkage,

 

(5) High heat, pressure, or inaccurate storage causes rubber surface deformation. Due to these environmental factors, you may observe warping, blistering, or bubbling.

 

(6) The breakdown of rubber compounds may produce a sticky texture on the rubber surface.

 

(7) Continuous friction causes rubber seal pitting or erosion.

 

(8) Sometimes, you may observe some whitish, powdery dust on the rubber seal strips. This happens because the waxes or other additives have migrated to the surface.

 

 

Frequently Asked Question

 

Q1.Is Fixing Dry Rot On Rubber Seal Strips Possible?

No, fixing dry rot on rubber seal strips is nearly impossible. Dry rot occurs when a rubber weather stripping loses its flexibility. Also, when a rubber becomes fragile, you can’t restore its original properties. However, you can take the necessary steps to prevent dry rot. Regular maintenance and proper use of rubber seal strips can protect rubber from dry rotting.

 

Q2.How Long Does It Take For Rubber To Dry Rot?

The exact time typically depends on different types of rubber. Some rubbers are ideal for outdoor use, while some are for indoor use. Rubber exposure to UV resistance, ozone, or temperature for a long time starts drying out.

For example, natural rubber may start showing rubber dry rot in 3-5 years, while EPDM is ideal for outdoor uses and can last more than 20 years. Other types of rubber generally dry out in 5-6 years.

 

Q3.Is 100% Rubber Biodegradable?

Natural rubber is 100% biodegradable. As you know, it comes from the latex of rubber trees. Although the biodegradation process is very slow, it may take several months to years. However, synthetic rubbers are not biodegradable. They are made from petrochemicals through the vulcanization process.

 

Q4.Why Can’t Rubber Be Recycled?

Rubber recycling is challenging due to its chemical structure. You can not just melt it and reuse it for other products. Most rubbers are made through a vulcanization process, which creates cross-links between polymers.

 

Summary

 

 

Dry rot is not an actual rot we see on biological matter. Even rubber trees may rot, but not the rubber itself. Due to various factors, rubber seal strips wear out and lose flexibility. When you bend them slightly, they break easily. This type of situation is often called rubber dry rot.

 

 

To prevent rubber dry rot during storage, you must take the necessary steps. Ensure the storage facility is well-ventilated and free from heat, moisture, and UV radiation. You could also use airtight bags or rubber protectants.

 

A water stop is a crucial construction element used in every building made of concrete. Some of us may need to become more familiar with its working principle. What does it do? As the name suggests, its purpose is to stop water. So, people use this material to prevent water from entering a space. Yes, these water stoppers avoid the passage of water through joints or gaps in concrete structures. There are various types of water stoppers, where rubber & plastics are most popular. “Rubber waterstop vs PVC waterstop” shows the fundamental differences between these materials.

 

Both rubber and PVC water stops are popular in construction applications. They have similar structures and are divided into back-mounted and middle-buried types. What sets them apart is their distinct materials.

 

Understanding the differences between these two products can help you make informed decisions. It allows you to choose suitable materials for your construction project. We will begin with the difference table so that you can quickly identify the fundamental differences. In the subsequent sections, we will learn more about their types, advantages, and limitations. Moreover, we will talk about some crucial factors you need in the selection process.

 

Rubber Waterstop vs PVC Waterstop

As mentioned earlier, rubber water stop & PVC water stop come with similar structures. What sets them apart is their construction material. Therefore, the following table mainly focuses on the primary material characteristics. When you compare the properties, you will find appropriate the water-stop material suitable for your project.

 

Features	Rubber Water stop	PVC Water stop
Material Composition	Typically made from natural or synthetic rubber compounds, key advantages are flexibility & durability.	Composed of polyvinyl chloride; key advantages are chemical resistance & ease of fabrication
Types	Internal (CB & CP type) & external (EB & EP) types cover diverse project requirements.	Dumbell, Dumbell with center bulb, ribbed flat, ribbed with center bulb & tear web, base seal, split water-stop, cap water-stop
Flexibility	Excellent elongation, accommodating structural movements	It is less flexible than a rubber water stop.
Corrosion resistant	Generally resistant to corrosion but not as good as PVC water stop	Excellent corrosion resistant
Tensile strength	Exhibit good tensile strength	Known for high tensile strength
Temperature resistance	Suitable for a wide range of temperature applications	Excellent for low-temperature applications
Durability	Durable; withstands various environmental conditions	Also durable & long-lasting
Advantages	Excellent flexibility, adaptability to irregular shapes	High chemical resistance, low-temperature resistance, and Versatile
Limitations	Susceptible to edging, may require more maintenance	Limited flexibility in comparison to rubber may not be suitable for irregular surfaces
Cost	Competitively priced	Generally cheaper than a rubber water stop

Rubber Waterstop

A rubber water stop is a popular type of construction material. Its primary function is to prevent the passage of water through joints in concrete structures.

Rubber water stops are used more often than PVC water stops. Popular manufacturing processes include plasticization, mixing, extrusion, compression molding, and vulcanization.

 

There are different types of Rubber water stops. We have categorized them into two main sections.

 

Based on usage

• A buried water stop is the standard type of rubber waterproofing material. It is commonly used to construct underground concrete structures.
• The back stick-type water stop is made of a combination of natural rubber & synthetic rubber. Its composition also includes many additives & fillers. It mainly comes from plasticization, mixing, and compression molding.

 

Based on the form

• CB-type water stop: They are the middle hole of the buried water stop.
• CP-type water stop: They are in the middle of nonporous buried water.
• EP-type water stops are also known as “externally bonded water stops” or “backing water stops.” This designation indicates that water stops are marked outside the center of the no-pass.
• EB-type water stop: They are also known as posted outside water stop or backing with water stop.

 

Advantages

1. Rubber water stop provides excellent flexibility.
2. They provide excellent water-tightness.
3. They exhibit good chemical resistance.
4. Durable & efficient
5. Rubber Water Stops can accommodate irregular surfaces.

 

Limitations

1. Rubber water stops may be suitable for flexibility, but they are not ideal for low-temperature applications.
2. Unlike PVC water stops, they can’t promise excellent corrosion resistance.

 

PVC Waterstop

PVC is another popular material for making water stops. It also has extensive applications as a joint filler in concrete structures.

PVC water stoppers accommodate movement and settlements in concrete structures. They are also used to prevent the passage of water. PVC water stops come in various types.

• The Dumbell water stop is the largest and thickest profile. It is ideal for construction and contraction joints.
• Dumbell with a center bulb can withstand large-scale movements. They are also the largest & thickest water stop profiles.
• Ribbed flats are designed to enhance the bond strength between the water stop & surrounding concrete.
• Ribbed with center bulbs are designed to absorb the shear movements. It can be lateral or transversal direction.
• Ribbed with a torn web, it has a U-shaped center bulb. Its primary function is to pull when being subjected to large movements. Typical situations include joint expansion or differential settlements.
• The base seal is the simplest & easiest to install. You can use a regular splicing iron to perform heat welding.
• Split water stops have features similar to those of dumbbell water stops. What sets them apart is their structure and features. They are also ideal for construction joints with little or no movement.
• The cap water-stops have a cap that ensures a fluid-tight internal seal. They are ideal for expansion joints with expansion boards.

 

Advantages

1. It provides excellent corrosion resistance.
2. PVC water stops are ideal for low-temperature applications.
3. It is 3-4 times more durable than rubber water stops.
4. It is cheaper than a rubber water stop.

 

Limitations

1. It is not as flexible as a rubber water stop.
2. It is not suitable for use on irregular surfaces.

 

4 Main Considerations to Consider While Choosing a Waterstop (Rubber Waterstop vs PVC Waterstop)

 

In the preceding sections, we have briefly described the rubber water stop & PVC water stop. Now, you can distinguish their differences. Let’s recap our discussion & evaluate how to choose the right product for your project. To do this, we can consider four important Factors.

 

Factor#1 Material

 

The material of a water stop is a critical determinant of its performance. You know, rubber & PVC each offer distinct properties. Consequently, these material properties affect the durability, flexibility, and resistivity. Therefore, the selection must align with the specific demands of the project. As a result, you or your engineer can ensure that the chosen water stop can withstand certain environmental conditions.

 

Factor#2 Installation method

 

The installation method also significantly influences the functionality of the water. Two types of installation methods are often used in construction applications. These are internal & external installations. Moreover, proper installation ensures a secure & watertight seal. It prevents leaks & ensures long-term effectiveness. The method may vary depending on the chosen water-stop material.

 

Factor#3 Size

 

Size considerations are also paramount in achieving an optimal seal. Your chosen water stop must be appropriately sized to accommodate concrete joint movement. It also prevents displacement. Oversized or undersized water stops can compromise the overall effectiveness of the seal. Therefore, it is necessary to go for precise sizing.

 

Factor#4 Application Environment

 

Finally, evaluating the application environment parameters is necessary when choosing the right type. Rubber water stops may be excellent in certain conditions, while PVC water stops might be more suitable in others.

 

FAQ

What are the different types of water stops?

There are four types of water stops that you can use in your construction. These are rubber water stops, PVC water stops, metal water stops, and bentonite water stops. Rubber and PVC water stops are considered the most popular in this case.

 

Which is better, rubber water stop or PVC water stop?

The choice between rubber & PVC water stops depends on specific project requirements. For example, rubber waters are ideal for flexibility & adaptability in construction joints. Conversely, PVC water stops are known for their corrosion resistance & low-temperature resistance.

 

How long does PVC rubber water stop last?

Usually, plastic water stops last 3-5 times longer than rubber water stops. However, PVC rubber water stops last more than 40 years. The lifespan typically depends on adequately selecting the water stops during the installation.

 

What is the difference between TPV & PVC water stop?

TPV is a combination of rubber and plastic, providing both characteristics. The main difference between TPV and PVC water stops is their flexibility. TPV is more flexible than traditional PVC. It typically allows for greater movement accommodation in construction joints.

 

Summary

 

Let’s wrap up everything! Rubber water stops & PVC water stops are both popular in construction applications. They reveal different characteristics that make them suitable for specific applications. Rubber water stops offer enhanced flexibility & adaptability.

 

PVC water stops are very good at withstanding low temperatures and rust. Remember that rubber and PVC water stops might not work in all situations. Because of this, you need to pick the suitable material for the job based on the application’s needs.

 

There are four things you need to think about when picking a water-stop material. The four are material, installation method, size, and use context. Whether the water stop is made of rubber or PVC affects how well it works and how long it lasts.

 

Also, size is a crucial thing to think about for accurate fitting. After that, the other two factors decide how long the water stoppers last and how well they work.

 

Above all, if you have any questions about rubber water stops vs. PVC water stops, don’t hesitate to get in touch with our customer support team.

Cars, machines, and buildings often experience various threats. Some of the critical external threats are mechanical impact and vibrations. A rubber pinch weld can help you prevent them.

 

Rubber pinch weld seals can be used in various applications. These include protecting edges, reducing shocks, sealing against water, and more. In this article, we will briefly discuss these uses. So, let’s get started.

 

What is a Rubber Pinch Weld?

 

A rubber pinch weld is generally a sealing component. It protects cushions and strengthens edges, seams, and parts at risk. It mostly stops mechanical impacts, vibrations, and other threats from the outside.

 

A pinch weld rubber seal is usually made of synthetic rubber. In most scenarios, it has either a hollow or solid core. Metal or fabric inserts can add additional strength. However, the outside has a ribbed structure for better grip and sealing. Finally, grooves inside may make attaching and sticking to surfaces easier.

 

Several types of pinch weld seals are available in the rubber industry. Common variations are edge protector, flap door seal, boot seal, and U-section bulb trim. Each type is suitable for specific use.

 

What is the Difference Between a Rubber Pinch Weld and A Rubber Seal Strip?

 

A rubber pinch weld and a rubber seal strip serve different purposes. They each have their own traits. In different situations, though, both are used for sealing.

 

The primary purpose of rubber pinch welds is to protect edges and provide cushioning. They are commonly used on car doors, hoods, and windows. Their structures are usually more complicated.

 

Conversely, rubber seal strips make a tight seal between two surfaces. They typically prevent moisture, dust, air, or chemicals. Most of the time, they have simpler structures. To make fitting easier, seal strips may have an adhesive back. They are often found in door and window seals, vehicle weather stripping, and HVAC systems.

Feature	Rubber Pinch Weld	Rubber Seal Strip
Purpose	Edge protection, reinforcement, cushioning	Creating a tight seal between surfaces
Structure	Complex, with flexible rubber and inserts	A simple, continuous strip of rubber
Reinforcement	Often reinforced with metal or fabric	It may or may not reinforced
Outer Surface	Ribbed or textured for grip	Uniform profile
Inner Surface	It may have grooves for attachment	Generally smooth
Application areas	Vehicle doors, hoods, windows	Automotive weatherstripping, door seal seals, HVAC
Installation method	Attached to a substrate with clips of fastened	Often features adhesive backing

Rubber Pinch Weld Roles in Different Applications

 

Rubber pinch welds are prevalent in many situations. The following ten situations are the most common. We may often observe the use of pinch weld seals in many industries. Let’s check them out.

 

Role #1 Edge Protection

 

Edge protection is crucial to keep many goods and tools from getting damaged. This damage may happen due to impact or abrasion along their edges. Edge protection is also necessary for the safety of the people. For example, sheet metal edges can be dangerous.

 

Rubber pinch weld solves this problem excellently. It provides a robust barrier against impact and abrasion.

We may often find it in many applications. For example, rubber pinch weld is frequently used to protect the doors and windows of cars in the auto industry. In the construction industry, pinch weld seals are used on the edges of metal or glass panels.

 

Role #2 Sealing & Gasketing

 

Rubber pinch welds also play a crucial role in sealing and gasketing. Unlike seal strips, a pinch weld door seal specifically seals gaps, edges, and joints. You may often find them in cars, buildings, and machines.

Please remember that seal strips mostly keep out water, air, and noise. On the other hand, a rubber pinch weld creates a secure seal around edges, seams, and openings. Pinch weld sealing is often found in your car’s doors, windows, and hatches.

 

In this case, seal strips and pinch welds may be similar. Both create a reliable barrier against water, dust, noise, and vibration.

 

Role #3 Vibration Dampening

 

Vibration is a serious problem in machinery. It may create many problems. For example, vibrations cause equipment to wear out early. If they wear out too quickly, they will need more repairs and cause more downtime.

 

In addition, vibrations can create discomfort in vehicles or buildings. Car engines and HVAC systems in buildings are noteworthy examples. In the factory, vibrations can make machines less accurate and precise.

 

A rubber pinch weld plays a crucial role in vibration dampening. It can absorb and spread vibrations.

 

A rubber pinch weld increases the lifespan of the machine or vehicle. Overall, it enhances comfort and reduces cost.

 

Role #4 Shock Absorption

 

Shock absorption protects both the equipment and the things that it works with. Different kinds of shocks could happen. Impacts, vibrations, and sudden changes in loads or moves are all common examples. These shocks can lead to damage, malfunctions, or even safety hazards.

 

Rubber pinch welds are significant for absorbing shock. They act as cushions between different parts or surfaces. Because rubber is elastic, it can change shape when affected by pressure. It handles the energy from the shocks well by absorbing and spreading it.

 

In addition, rubber pinch weld can keep working well. Over time, it reliably absorbs pressure, even when hit many times.

 

Role #5 Waterproofing

 

Rubber pinch welds are very effective at keeping water out. The unique form of the material prevents water from reacting with the other surface. Also, because it is flexible, it can fit over rough surfaces. It usually covers the whole area and prevents water from getting in, even in harsh conditions.

 

Waterproofing is essential for machines and equipment. Water can damage sensitive parts, and rubber pinch welds prevent this damage. Water getting into the factory can cause several problems. Common problems are mechanical failure, corrosion, and electrical malfunctions. In the long run, it generally leads to costly repairs.

 

Role #6 Sound Insulation

 

Noise or unwanted sound can create discomfort. It may also be a sign of potential hazards in a system. Sound insulation is typically necessary for these situations.

 

Rubber pinch welds can effectively reduce noise. They absorb and dampen sound waves. When installed along edges or gaps, they form a barrier that prevents sound transmission.

 

For example, in architecture, rubber pinch weld seals are used around doors and windows. They usually block out outside noise and make the inside of a room peaceful. Similarly, they close gaps in car doors or trunks in automobiles. This reduces noise from the road and makes the cabin more comfortable for guests.

 

Role #7 Heat Insulation

 

We often need heat insulation material for safety and comfort. Machines need it to work well. It is also necessary to protect sensitive equipment. Heat protection in cars keeps people from getting too hot or too cold.

 

Heating insulation also saves energy in homes and public areas. It keeps heat from moving through the roof, walls, and windows as little as possible. Overall, it lowers the cost of heating and cooling.

 

Rubber pinch welds can withstand varying heat levels. Rubber has excellent flexibility, so it works great for a long time. Different types of rubber serve various purposes.

 

Role #8 Dust Prevention

 

Dust accumulation can pose risks to health and safety. For machinery, this can lead to malfunction. As a result, keeping dust away is very important. Several fields need this to ensure the quality of their products and the health and safety of their workers. You may often see it in manufacturing, electronics, and food processing factories.

 

A rubber pinch weld plays a crucial role in dust prevention applications. It forms strong barriers and seals. This tight seal usually keeps dust from getting into enclosed areas.

 

Rubber pinch weld ensures cleaner environments. It also reduces the need for frequent cleaning and maintenance.

 

Role #9 Automotive Pinch Weld Edge Trims

 

Automotive edge trims improve car safety. Pinch weld edge trims are applied along the edges of doors, windows, hoods, and trunks.

 

These trims provide a clean and finished look. Besides, they protect your car from impacts, scratches, and corrosion.

Pinch weld edge trims make installation around curved surfaces easy, ensuring a snug fit and adequate protection.

 

Pinch weld trims last long and don’t break down in high or low temperatures, UV rays, or water. Because of this, they are perfect for protecting edges for a long time.

 

However, based on the different positions of a vehicle, the type of pinch weld edge trim varies.

 

Role #10 Gripping

 

Gripping is the ability to hold onto or grasp an object. Secure gripping is crucial in various scenarios. It ensures safety, stability, and control over objects.

Rubber pinch welds typically have a high-quality grip. They offer excellent cushioning and a non-slip surface, allowing users to hold them and lift objects comfortably.

 

Let’s say you are working with heavy metal sheets. The edges of metal sheets can pose risks to your safety. But if you have pinch welds, you can securely lift these heavy metal sheets. Industrial applications provide more examples.

 

Summary

 

Let’s wrap everything up! A rubber pinch weld is a crucial car, building, or machine element. It has many applications, of which we have discussed the ten most popular uses in the preceding sections. It offers edge protection, sealing, shock absorption, vibration dampening, and more.

 

If you explore rubber pinch welds further, you will find a wide range of types and materials. Because of this, choosing suitable options becomes tricky. Therefore, considering the application requirements is very important.

 

okin Rubber is a leading manufacturer of various rubber seal strips. Rubber pinch welds are one of their busy production. If you need more information, you can contact our customer support team. We have a team of professionals who are always happy to assist you.

Seal strips have many uses. People need to use it mainly for sealing and vibration-dampening applications. EPDM, neoprene, and SBR strips are common names here. Compared to these rubber strips, neoprene strips come ahead because of some benefits. This article mainly talks about those benefits. Ultimately, you will realize why you should choose neoprene rubber for your job.

 

Overview of Neoprene Strips

 

Neoprene is a famous type of synthetic rubber. Unlike natural rubber, neoprene offers a wide range of benefits. It has a polymerized chloroprene structure.

 

Neoprene tape is another name for neoprene strips. Seals, extrusion shapes, and gaskets are all part of strips. No matter what kind it is, the benefits come from how the material works.

 

Neoprene rubber is durable and resistant to oils, chemicals, and currents. As the title of this article implies, these strips have 12 crucial benefits. These benefits should be enough to make you choose neoprene strips.

 

Neoprene strips come in many types. First, a solid neoprene rubber strip offers high hardness. It is suitable for high wear and tear jobs and has excellent tensile strength. Second, neoprene foam strips provide good cushioning and dampening properties. These neoprene strips are prevalent for machines and equipment. Third, adhesive strips are the simplest to install. Other types are used in many applications as well.

 

12 Reasons Why You Should Use Neoprene Strips

 

There are several reasons why you should choose neoprene rubber for your project. As you already know, what are neoprene strips, and what are their typical properties? Well, neoprene weather strippings are trendy because of their benefits. This popularity makes this product suitable for many industrial and commercial needs. In this section, we will discuss why neoprene rubber is better.

Reason #1 Tough & Durable

 

Neoprene weather stripping is known for its toughness and durability. Its tensile strength generally ranges from 6.8MPa to 24MPa. Solid neoprene rubber is specially made for toughness. They may be used in dual durometer rubber with solid and sponge parts.

 

When you look at the different kinds of rubber, EPDM has 17MPa, and nitrile has 21MPa. Solid neoprene rubber strips are more robust. However, this rubber has good tear and compression resistance. In addition, they are very resistant to wear and weather. All these properties make neoprene weather stripping effective for a long time.

Reason #2 Chemical Resistant

 

One of the main reasons you should use neoprene strips is that they can stand up to chemicals. For petroleum-based chemicals, you can safely use these strips. Besides, they are also resistant to other oils, solvents, and mild chemicals. This ability reasonably makes neoprene sealing strips ideal for industrial and manufacturing settings.

 

On the other hand, it’s also important to know that some chemicals can break down neoprene. Acetone and heat weaken this rubber’s tensile strength. Be cautious with harsh chemicals and heat. If you know these limitations, you can ensure the effective use of neoprene rubbers.

Reason #3 Waterproof

 

Neoprene strips are also waterproof. It means they don’t absorb water. Therefore, they are perfect for use when they need to resist water.

 

Neoprene rubber usually has a closed-cell makeup. Because of how it is made, neoprene rubber is the best for use in the water. Boats, kayaks, and other vessels often use neoprene weather stripping.

 

Neoprene rubber is also widely popular for outdoor use. They do a great job of keeping out rain and wetness. For instance, you need neoprene weather protection for your car. It keeps the inside of your car nice and dry.

 

Moreover, it can be used in your home, garage, office, and industrial settings.

 

Reason #4 UV-Resistant

 

UV rays from sunlight may damage many materials, including rubber. However, not all rubbers are the same. Neoprene rubber can naturally resist UV. Therefore, they can withstand prolonged exposure to sunlight without degrading. Because of this, they are an excellent choice for outdoor applications.

 

Neoprene strips never crack, fade, or lose elasticity when exposed to UV. This ability to resist UV generally extends the lifespan of neoprene seals. Many outdoor uses, like kennels, hutches, and roofing, use neoprene rubber. Boats, cars, and airplanes also use neoprene rubber to resist UV.

 

Reason #5 Temperature Tolerance (-29°C to 121°C)

 

Neoprene sealing strips can withstand temperatures from -29 to 121 degrees Celsius. This favorable range is typically suitable for most applications. You can use neoprene rubber for both low and high-heat jobs.

 

EPDM rubber has a temperature range of 50°C to 120°C, while nitrile ranges from -35 to 120. Silicone rubber, on the other hand, withstands temperatures from -60 to 230. Clearly, silicone rubber is the best choice for high-heat jobs. However, neoprene is always a good option for moderate-temperature jobs.

 

Reason #6 Electrical Insulation and Fire Resistance

 

Neoprene strips are excellent electrical insulators. Note that neoprene has excellent static-resistance ability. As a result, neoprene rubber can withstand high voltages. You may often find its use in power transformers and many electrical circuits.

 

Moreover, neoprene rubber is also fire-resistant. However, nitrile or SBR rubber is the best for fire resistance. Neoprene rubber does a good job, but this is not very often.

 

Overall, neoprene sealing strips are a safe and efficient solution. It is safe for both electric and fire-involved jobs.

 

Reason #7 Vibration Dampening

 

Neoprene strips work great for reducing vibrations. Nevertheless, neoprene foam strips work best in this setting. They effectively absorb and reduce vibrations. Because of this, you may often find its use in machines and equipment. As you know, vibrations are typically not appropriate for machines. It affects the performance of the machine. Therefore, vibration dampening is crucial here.

 

A Solid neoprene rubber strip may not be suitable. It is not flexible like neoprene foam strips. Therefore, always choose neoprene foam strips for dampening. But you must check the other aspects as well. For example, neoprene foam is unsuitable at temperatures above 70 degrees.

 

Reason #8 Wide Range of Durometer Value

 

Neoprene rubber strips may have a wide range of durometer values. You can also find dual-durometer neoprene rubber strips.

 

A durometer scale typically measures the hardness of rubber. Neoprene can be soft, medium, or hard. Soft neoprene is ideal for cushioning and sealing. Medium neoprene is excellent for gaskets and insulation. Finally, hard neoprene is perfect for heavy-duty uses. The hardness ranges from 20 to 90 Shore A. They can be elongated from 100% to 800%.

Reason #9 Ability to Customize & Wide Color Options

 

Neoprene rubber typically allows you to make anything you want. From profiles to flat gaskets, you can give neoprene rubber any shape. Based on these options, there are many types of neoprene rubber strips.

 

Neoprene rubber strips with adhesive backing are easy to install and replace. The extrusion profiles are great for weather stripping. Next, neoprene tape can dampen or cushion vibrations.

 

Moreover, there are other types as well. People use neoprene rubber trim for edge protection. Then, neoprene rubber bumpers are for impact absorption. Neoprene rubber tubes are used for insulation and fluid transfer.

 

You can now realize that neoprene rubber offers various customizing options. So, based on your project requirements, you can create unique shapes and features.

 

Reason #10 Easy to Handle

 

Neoprene rubber is lightweight and flexible. It is easy to cut and shape, and you don’t need additional tools to work with it. Neoprene adhesive strips are especially easy to handle. Remove the old rubber strip, measure the length, and cut it. Then, clean the surface for better adhesion. Finally, install the neoprene strip at the correct location.

 

Again, handling neoprene rubber doesn’t create dust or splinters, so it is safe and hassle-free. Because of this, it is suitable for DIY projects and professional use. Moreover, you can roll or fold neoprene rubber, making it easy to store.

 

Reason #11 Long Lasting

 

You now know what a neoprene strip can offer from the above ten reasons. They are excellent for wear, tear, and impact resistance. Besides, they have wider temperature and pressure ranges. All these properties ensure that neoprene rubber can handle many situations. So, it proves that these rubber tapes are durable.

 

Reason #12 Cost-effective Solution

 

Neoprene rubber tapes are affordable. According to recent market prices, neoprene tape costs around $12 (1″x 1/8″ x 10′ long). EPDM tape costs around $17, and nitrile tape costs around $16.

 

From the previous point, you know neoprene strips are durable. It means you don’t need frequent replacements. This benefit reduces the costs and makes it a cost-effective solution.

 

Summary

 

Neoprene strips are prevalent and come in many styles. Solid neoprene rubber strips, for instance, are very resistant to wear and tear. They also have an excellent tensile strength. Conversely, neoprene foam strips work well to reduce vibrations.

 

There are 12 reasons why you should choose neoprene strips for your job. They are mainly famous for their chemical resistance, waterproofing, durability, and ease of use. Therefore, they are primarily used in the chemical, automotive, and aerospace industries.

 

Contact us for more information.

Metal edge protectors are usually one type of edge trim. You can also call it seal strips, edge guards, or edge seals. However, these seals are mainly designed to protect metal edges. They primarily prevent damage and enhance safety.

 

These metal edge guards come in various shapes and sizes, each ideally suited to different applications. They also come in multiple materials. Metal, rubber, and plastic are widely used in edge trim manufacturing.

 

Metal Edge Protectors: Why are they Important?

 

As you already know what metal edge protectors are and how they work, you can guess why you need them. In a sentence, they ensure safety, keep your substrate in good shape, and give it a good look. However, they mainly give you seven primary benefits.

Reason #1 Safety

 

Metal edge protectors save you from injuries or equipment damage. As you know, they cover sharp edges to prevent cuts and abrasion. In the workplace, these metal edge trims create a safer workplace environment. As a result, using these rubber trims minimizes the risk of injuries.

 

If you check safety compliance, you will find that creating a safe working environment is the priority. In this case, metal edge trim plays a crucial role.

 

Reason #2 Protection Against Impact

 

Metal edge protectors are usually made of rubber or plastic. They are mainly designed to deflect and absorb impacts. Common materials used in this case are TPE, silicone, EPDM, and PVC. These materials have excellent cushioning abilities, preventing dents, scratches, and other damage.

 

Since they reduce wear and tear, edge trims eventually extend the life of metal components. This is especially necessary in industrial and public areas.

 

Reason #3 Maintaining the Structural Integrity of The Covered Substrate

 

As you know, rubber edge trims absorb impact. As a result, your metal equipment does not bend or warp during impact. It technically maintains the original shape of the component.

 

Rubber edge trim generally distributes stress and load evenly across the edge to ensure no localized damage. Overall, it ensures that your metal tool remains intact over time.

 

Reason #4 Durability

 

In addition to absorbing impact, metal edge protectors offer other benefits. Corrosion and weather resistance are noteworthy. EPDM, PVC, and TPE—all these rubber or plastics offer excellent resilience. You can use them in many outdoor jobs.

 

As you can see, rubber edge trims protect your equipment from impacts. They also work excellently against corrosion. You can also use them for sealing purposes. So you can see that these rubber trims will finally make your metal equipment last longer.

 

Reason #5 Appearance

 

Metal edge trims can be made of various materials, such as metal, rubber, or plastic. All these materials can be designed or customized.

 

Rubber edge guards usually come in various colors and finishes. During custom manufacturing, you can choose your design. Overall, they give your metal equipment a clean and polished look.

 

Reason #7 Specific Application

 

The final reason for getting a rubber edge trim is its specific purpose. Metal edge protectors can be used around doors, windows, machinery, cars, and furniture. We will discuss their applications in the next section.

 

Types of Metal Edge Protectors

 

Metal edge protectors are often available in many types. This diversity is caused mainly by multiple edge configurations and specific application requirements. The following six types are the most often used in every application.

 

U Channel Rubber Edge Trim

 

As the name suggests, this edge trim is shaped like a “U” to fit over the edges. They are mostly made of PVC rubber with a metal core. These metal edge protectors are highly flexible and easy to install. However, rubber U-channel edge trim is suitable for flat edges.

 

E shape Rubber Edge Trim

 

These rubber edge trims resemble the English small-case letter “e.” They generally have a fine grip. This feature is highly suitable for handling sheet metal or metal equipment. These seals are also used in various sealing and protection applications.

 

Co-extrusion and Extrusion Rubber Edge Trims

 

There is no specific shape of extrusion or co-extrusion rubber edge trims. They can have many shapes or even your custom shapes. These shapes mainly depend on your project needs. However, you may often find its use in the car industry, construction, and marine.

 

Metal Edge Guard

 

As the name suggests, these edge seals are entirely made of metal. However, they usually have a protective coating. In this case, people mostly use stainless steel, aluminum, or galvanized steel. Overall, they are highly suitable for heavy-duty applications.

 

Plastic Edge Trim

 

These edge seals are made of various types of plastic. We can see that some are soft while others are rigid. TPE and PVC are now popular applications for edge trim production. These edge trims are among the lightest on the market and very simple to fit. They are also cheap and chemical resistant, more frequently known as chemical proof.

 

Where Do You Need Metal Edge Protectors?

 

Metal edge protectors are prevalent in many applications. People mostly use them for safety purposes. As you know, they also offer various other benefits. Here are some familiar places where metal edge protectors are crucial:

 

Protecting Doors and window edges

 

You can often find metal edge protectors around your house doors and windows. These rubber edge trims mainly protect doors and windows from impact. They prevent chips, dents, and wear over time. Because of this, your house doors and windows last long and maintain a polished look.

Suitable products: PVC Edging Strips with Steel Core, PVC Strip for Glass Door

 

Covering Sharp Sheet Metal Edges

 

Metal edge protectors are also widely used to cover sharp sheet metal edges. If you use these trims, you can be safe from cuts and injuries caused by handling. These rubber channel edge trims mainly cover the exposed area of the sharp sheet metal edges. As a result, you can safely work with them. As you know, safety is always the priority in industrial settings. These edge trims are easy to apply, and you can customize them to fit different thicknesses.

Suitable Products: TPE rubber edge trim

 

Industrial Machinery Edge Safety

 

Safety is the prime concern in industrial settings. Metal edge protectors are one solution. They cover exposed metal edges on equipment and machines, allowing workers to work safely around them.

In addition, these edge seals protect the machinery itself. Their sharp edges reduce wear and tear on the equipment. This is a very simple yet effective method.

Suitable Products: PVC Automotive Rubber Strips, TPE Rubber Edge Trim

 

Guarding Automotive Panels

 

You can also use metal edge protectors to protect the edges of your car panels. Covering the edges helps a lot during manufacturing, ensuring no injuries to workers. However, these protectors also help maintain the panel quality. As you know, different panels in your car need this. Typical examples are doors, fenders, hoods, trunk lids, roof panels, and rocker panels.

Suitable Products: TPE Rubber Edge Trim, PVC Strip For Glass Door

 

Enhancing Safety in Aircraft Components

 

The use of metal edge protectors in aircraft components is also crucial. You may often find it at fuselage edges, wing sections, engine nacelles, cargo doors, and all interior panels. The main goal of these edge trims is to ensure the functionality of the equipment.

Suitable Product: EPDM Rubber Edge Trim

 

Securing Edges in Storage and Packaging

 

Metal edge protectors are also used for packaging and storage purposes. Like other uses, rubber edge trims also ensure the safety and quality of the stored items. You may often find its use in warehouses, factories, and retail shops.

Suitable Products: Decorative PVC Edge Trim

 

Frequently Asked Questions

How do you measure rubber edge trim?

First, correctly measure the edge thickness of the substrate you are using. Check whether it is metal, plastic, or wood. Note that different rubber edge trims suit different substrate materials. Then, correctly determine the minimum bend radius of the edges. This is necessary to ensure the edge trim flexes ideally around the corners.

Next, measure the leg length to determine how much trim will wrap around the edge. Based on this information, choose the correct rubber edge trim.

 

How do you prevent sharp edges in sheet metal?

You can do this in many ways. First, you can grind the edges to smooth them. Second, you can use a metal edge protector to cover the edges. Although the second method is widely used in most scenarios, both ensure safety and prevent injuries.

 

How do you soften rubber trim?

Rubber trim can be used in harsh conditions, such as heat or UV light. It can harden over time, which, in most cases, makes it work poorly. To get back to the usual quality, it is crucial to soften the rubber trim. There are usually several ways to do it.

 

Firstly, you can apply heat to the rubber trim. The rubber will get softer and return to its original state. However, too much heat could change the shape of the rubber edge trim, so you should be careful.

 

You can also use various rubber-softening agents. Ideally, soak the rubber trim in an isopropyl and methyl salicylate solution. Spray silicone oil to eliminate this problem. You can find all these chemicals and tools in a nearby supply store.

EPDM stands for Ethylene Propylene Diene Monomer. It is a versatile material for making many rubber products, including EPDM rubber extrusion profiles. You can see a wide range of EPDM rubber extrusion shapes. For example, sheet, O-ring, cord, solid square, tubes, e, P, T, and other extrusion profiles are noteworthy.

EPDM is beneficial in many ways. It is excellently resistant to weather, UV, and ozone and is used in EPDM rubber extrusion profiles. It also has other benefits.

 

EPDM rubber extrusion is generally a process of making EPDM rubber profiles. In this article, we will mainly discuss this process. We will learn its benefits and some frequently asked questions.

 

What is EPDM Rubber Extrusion?

 

EPDM rubber extrusion is a method of shaping EPDM rubber into specific profiles. There are different steps, from getting the items ready to finishing and testing. These shapes can be weatherstripping, seals, gaskets, or tubes. Extruded EPDM shapes are used in every industry. Even in the food industry, these rubber strips seal large metal containers. In this case, though, nitrile extrusion profiles are typical.

 

EPDM rubber profiles can be chosen if your application needs a reliable, long-lasting seal. For example, your car door and window need them, as do your house door, windows, cabinet, or other openings. You can think of different uses, too. We will talk about them later. Before that, let’s learn how EPDM rubber extrusion works in real-life manufacturing.

 

Step #1 Preparing the Material

 

Formulating is a crucial step before mixing all the raw materials. As you know, EPDM has three base materials: ethylene, Propylene, and Diene Monomer. The formulation of these materials usually determines the final properties of the rubber. So, the formulation is crucial for hardness, color, and resistivity.

Once the formulation is done, you can mix the raw materials in a large mixer or mill. This is not the hopper. It may be a different machine or the same one. The primary purpose of this equipment is to create different EPDM compounds.

 

Step #2 EPDM Rubber Extrusion Process

 

Firstly, feed the EPDM rubber into the hopper of an extruder. Note that an extruder is a type of machine with a barrel, screw, and die.

 

Once the raw materials are fed, the barrel of the extruder heats them. The molten rubber compound then moves forward with the help of a screw. As you know, molten EPDM rubber is easy to shape. You must control the temperature to avoid degrading the material.

When the screw rotates, the molten EPDM rubber moves forward. The force created by this screw usually allows molten material to pass through the die. The die, here, is a specialized tool that mainly shapes the rubber compound. The wide range of EPDM profile shapes you see in the market is due to this die. So, die-making is a very crucial part of manufacturing. It may be costly based on the shapes of the final profile.

 

The vulcanization process is used in some quality manufacturing, like the okin rubber factory. After extrusion from the barrel, the extruded rubber compound is further pre-heated. Then, the curing process is operated.

 

Note that curing is also a type of continuous heating process. It creates cross-links between polymer chains to improve elasticity, strength, and durability.

 

Step #3 Extruded EPDM Cooling

 

When the molten rubber compound comes out of the die, it is soft and hot. A cooling process is crucial to giving it a good shape. Depending on your convenience and manufacturing facilities, you can cool it by air or water. Note that proper cooling is essential for shape and dimensional stability.

 

Step #4 Extruded EPDM Cutting & Finishing

 

After cooling, you can cut the extruded EPDM rubber profiles into your desired length. Depending on your production needs, you can also make coils.

 

These extruded EPDMs may need finishing. For example, the profile may have excess material that needs to be trimmed. Moreover, surface treatment methods may also be required.

 

Step #5 Extruded EPDM Quality Inspection

 

After cutting and finishing, we test the extruded rubber for quality at the okin rubber plant. From this step, different certifications are given out. Customers can believe these certifications to say that the product and the factory are good.

What are the key Features of EPDM Extrusion?

 

EPDM Extrusion has several exciting features, making it suitable for many uses. Each feature is ideal for unique applications. Therefore, when choosing an EPDM extrusion profile, focus on the exact specs. This can technically help you find the correct product for your job. Let’s check out those features one by one.

 

Feature #1 Weather & UV Resistance

 

EPDM rubber is highly resistant to weathering, ozone, and UV. Because of this, EPDM extrusion profiles are ideal for most outdoor sealing jobs. These rubber seal strips are also suitable for use when exposed to UV radiation. You can find its use in your car, house, or electronic devices.

 

Feature #2 Thermal Stability

 

EPDM extrusion profiles can withstand a wide range of temperatures. The typical range is between -40 degrees Celsius to 250 degrees Celsius. So, you can realize that EPDM seal strips can work smoothly even in extreme temperatures. You may find this example in engine components and HVAC systems.

 

Feature #3 Excellent Durability

EPDM profile extrusion usually makes rubber products more durable. The curing or vulcanization method makes these profiles even more durable. They can endure stress and degradation. Therefore, you don’t have to worry about upkeep and costs.

 

Feature #4 Impact Absorption Properties

 

EPDM rubber extrusion profiles have excellent impact resistance ability. You can use them for cushioning and vibration-dampening jobs. However, you can use them in your car components, machine mounts, or construction seals.

 

Feature #5 Lightweight & Easy to Install

 

EPDM extrusions are relatively lighter than other rubber profiles. They are easy to set up because they are not heavy. You already know that this feature is essential for construction jobs. Also, the materials for cars need to be lighter. This feature makes quick changes and fits easily, even in small spaces.

 

Feature #6 Suitable for Various Environments

 

EPDM rubber extrusion profiles can work in diverse environments. You can use it in both indoor and outdoor environments. For outdoor, it works smoothly in both hot summer and cold winter. So, EPDM extrusion profiles are highly versatile.

 

Feature #7 Different Shore Hardness Availability

 

Finally, you have many options for the shore hardness of EPDM rubber extrusion profiles. However, the typical shore hardness is 61 degrees to 69. Therefore, you can offer customization to your customers. Shore hardness is the rubber’s stiffness and flexibility. This property of rubber is significant for the optimal performance of a system.

 

Frequently Asked Question

What is the difference between extruded and molded rubber?

 

Molded and extruded rubber mainly vary in their making process. Extruded rubber comes from extrusion, which forces raw rubber through a die to get specific shapes. The size mostly depends on the size of the dies. Because of this, you can get a consistent cross-section. On the other hand, molded rubber comes from the molding process. In this process, you will need a mold cavity, and then you will pour the molten rubber into this cavity. When cooled, you will get precisely the same shape as the mold cavity. You can create tons of rubber products in this process. However, the best type depends mainly on your application and rubber product.

 

What is EPDM rubber good for?

 

EPDM rubber is mainly suitable for outdoor applications. People often use it to weatherstrip on house or car doors, windows, and cabinets. EPDM has excellent resistance to weather, ozone, and UV. Thus, it is prevalent in roofing, seals, and hoses. You can also use it for electrical insulation.

 

Is EPDM 100% waterproof?

 

Yes, but only when you have installed it correctly. EPDM is highly resistant to water and weather, making it ideal for outdoor situations. You can use it for roofing, pond liners, and various water-sealing jobs.

 

What is RMA tolerance?

 

RMA stands for Rubber Manufacturers Association. RMA tolerance is the number of flaws that are acceptable during production. These certificates are essential if you make or buy rubber goods.

 

Summary

 

EPDM rubber extrusion is a rubber manufacturing process. It makes long and continuous shapes from EPDM rubber compounds. You can make it as long as you can. The making process usually forces the raw rubber to the die and makes various shapes. The shape of the profile mostly depends on the die used in the process.

 

EPDM extrusion profiles are ideal for outdoor use. As you know, EPDM is highly resistant to weather, ozone, and UV. Other benefits of using the EPDM rubber profile are flexibility, durability, and thermal stability. When discussing thermal activity, you should know that EPDM can withstand up to -50 degrees to 250 degrees Celsius. In Fahrenheit, this must be -60 degrees to 300 degrees Fahrenheit.

 

Contact us today! We offer our customers a wide range of EPDM seal strips and customization services. You can get any design, quality, and color you want. If you have any questions about EPDM rubber extrusion and its products, please get in touch with us. Our team of experts are always happy to assist.