OKIN manufactures premium custom EPDM rubber seal and extruded rubber sealing strip products for automotive, construction, and industrial applications. Backed by IATF16949 and ISO9001 certifications, we strictly use 100% virgin rubber to ensure superior weather resistance and reliable sealing performance for your projects.
Key Features & Benefits
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We implement rigorous quality control protocols across all our solid and sponge EPDM profiles. By strictly utilizing premium virgin raw materials, we guarantee our extruded rubber sealing strips offer superior resistance to wear, aging, and chemical corrosion, ensuring a prolonged service life.
As a dedicated source factory, we specialize in OEM custom EPDM rubber seals mapped exactly to your CAD drawings. We support rapid tooling development for various complex cross-sections and offer precise hardness adjustments to match specific industrial application requirements.
Our facility is equipped with state-of-the-art microwave vulcanization lines and continuous extrusion technology. This allows us to process high-precision rubber components with extreme dimensional stability, giving you a competitive edge with rapid lead times and strictly on-time delivery.
Our custom EPDM rubber seals are the primary choice for automotive, construction, and industrial applications. They are widely used as window and door seals, protective weatherstripping, and electrical enclosure gaskets. Additionally, our solid and sponge extrusions are frequently employed in HVAC systems for drain tubes, compressor vibration dampeners, and insulation purposes.
Our extrusion facility manufactures a wide variety of standard and custom EPDM rubber profiles, including:
D-sections, P-sections, U-channels, O-ring cords, square, and rectangular shapes. To facilitate fast assembly, most of our extruded sealing strips can be laminated with high-adhesion PSA (Pressure Sensitive Adhesive) backing.
Thanks to its outstanding resistance to UV radiation, ozone, and extreme weather, a high-quality EPDM rubber seal can easily last between 20 to 50 years depending on the application environment. At OKIN, we use 100% virgin rubber to ensure our extruded profiles maintain their elasticity and sealing performance over decades of use.
While EPDM is excellent against water, steam, and mild chemicals, it is generally not compatible with petroleum-based oils, mineral oils, gasoline, and hydrocarbon solvents. If your sealing project involves direct contact with fuels or heavy oils, we recommend customizing our NBR (Nitrile) or FKM rubber seals instead.
Neither is strictly "better"—it depends on your application. EPDM is highly cost-effective and superior for outdoor applications requiring excellent weather, UV, and abrasion resistance (like automotive weatherstripping). Silicone is preferable if your project demands extreme high-temperature resistance (above 150°C/300°F) or FDA food-grade compliance. OKIN can expertly extrude both materials based on your drawings.
As an IATF 16949 certified factory, we offer rapid and reliable turnaround times. Custom tooling and initial sample development typically take 7-10 days after CAD drawing approval. For mass production of solid or sponge extrusions, our standard lead time is 15-25 days, depending on the volume and profile complexity.
EPDM rubber extrusion has been the primary choice for automotive, construction, and industrial applications. Such as window and door seals, protective pads, and electrical gaskets for sealing and insulation purposes. It is also employed in HVAC machinery (heating, ventilation, and air conditioning) as the drain tube, compressor gaskets, pressure switch tubing, etc.
Excellent Insulation And Sealing Properties: It makes the extruded rubber gaskets an ideal sealant or insulator, especially in electrical appliances.
Great Physical Properties: It makes the rubber extrusions tough, elastic, and flexible;
Excellent Chemical And Abrasion Resistance: It provides a long-lasting service life of the rubber products;
Excellent Resistance to Weathering, aging, and ozone: It makes the rubber fit for harsh outdoor conditions.
The most common types of EPDM rubber extrusions on the market include:
D-section, P-section, U-channel, o-ring cord, square-shaped, rectangle-shaped, door and window seals.
Most of them can be provided with a self-adhesive finish.
