When choosing the right rubber material for sealing, insulation, or resistance needs, EPDM and NBR are two of the most commonly used elastomers in the industry. Each material offers distinct advantages, depending on your specific working environment.
What Is EPDM Rubber?
EPDM (Ethylene Propylene Diene Monomer) is a synthetic rubber known for its excellent weather, ozone, and UV resistance. It is also highly flexible and performs well in both high and low temperatures.
✅ Key Features of EPDM:
- Excellent resistance to UV, ozone, and aging
- Performs in temperatures from -40°C to +150°C
- Good elasticity and flexibility
- Not recommended for oil, fuel, or hydrocarbon exposure
📦 Common Applications:
- Automotive weatherstripping and seals
- Window & door seals
- HVAC gaskets
- Roofing membranes
- Outdoor insulation and pond liners
What Is NBR Rubber?
NBR (Nitrile Butadiene Rubber) is a synthetic rubber especially suited for oil, fuel, and chemical resistance. It’s widely used in industries where contact with petroleum-based products is unavoidable.
✅ Key Features of NBR:
- Excellent resistance to oil, fuel, and hydrocarbons
- Good mechanical strength and abrasion resistance
- Operating temperature: -35°C to +120°C
- Moderate weather and ozone resistance
📦 Common Applications:
- Automotive fuel systems and engine seals
- Oil & gas equipment gaskets
- Hydraulic hoses and seals
- Industrial machinery parts
- Disposable gloves and healthcare components
EPDM vs NBR Rubber: Key Differences
| Property | EPDM Rubber | NBR Rubber |
| Weather & UV Resistance | ✅ Excellent | ❌ Poor |
| Oil & Fuel Resistance | ❌ Poor | ✅ Excellent |
| Temperature Range | -40°C to +150°C | -35°C to +120°C |
| Elasticity | ✅ High | ✅ Moderate |
| Chemical Resistance | ✅ Mild acids & alkalis | ✅ Good with oils, fuels |
| Application | Outdoor, Automotive, Roofing, HVAC | Automotive, Oil & Gas, Industrial Sealing |
How to Choose the Right Rubber for Your Application?
Choose EPDM if your project demands:
- Long-term outdoor durability
- UV, ozone, and temperature resistance
- Flexibility under harsh weather
Choose NBR if your application involves:
- Frequent contact with oil, fuel, or solvents
- Use in engines or hydraulic systems
- Industrial sealing in oil-heavy environments
About OKIN Rubber
Taiwan Okin Huasu Group Limited is a professional manufacturer of rubber extrusion products with over 20 years of experience. Our EPDM and NBR rubber sealing strips are trusted by clients in Europe, Southeast Asia, the Middle East, and North America.
📩 Contact us today to get samples or technical advice.