Backed by IATF16949 and ISO9001 certifications, OKIN is a premier source factory specializing in high-precision custom rubber extrusions. Rather than supplying standard off-the-shelf items, we engineer tailored sealing solutions matching your exact CAD drawings for automotive, railway transit, marine, shipping containers, construction, and heavy industrial applications.
Our advanced microwave vulcanization and co-extrusion lines process a comprehensive range of premium materials, including EPDM, Silicone, Neoprene, NBR, PVC, and TPE/TPV. Whether your project requires weather-resistant solid rubber cords, impact-absorbing rubber fenders, complex edge trims, or specialized self-adhesive weather strips, we deliver strict dimensional tolerances and exceptional longevity. We support rapid tooling development with a standard MOQ of 500m, ensuring highly competitive direct-factory pricing and global delivery.
Standard MOQ: 500 Meters (Custom OEM / Rapid Tooling Supported)
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As a highly capable rubber extrusion source factory, OKIN completely transcends the traditional trading model. We operate advanced continuous microwave vulcanization lines, precision rubber injection machines, and a dedicated CAD/CAM tooling workshop. This in-house infrastructure allows us to control every critical step—from raw material compounding to custom die creation and mass production. By streamlining the entire OEM process, we offer global partners uncompromising dimensional accuracy, rapid sample development, and highly competitive direct-factory pricing.
Quality is not just a slogan; it is embedded in our supply chain. OKIN strictly operates under IATF16949 and ISO9001 quality management systems. From incoming virgin rubber inspection to final profile extrusion, every batch undergoes rigorous testing for tensile strength, elongation, and low compression set. By maintaining these strict internal automotive-grade standards, we guarantee that our extruded weatherstrips and seals perform flawlessly in the most demanding environments.
Instead of basic processing, OKIN utilizes state-of-the-art continuous microwave vulcanization and co-extrusion technology. Our process starts with precise raw material compounding tailored to your specific application. The rubber is then fed into high-shearing extruder screws and pushed through custom-engineered dies. Rapid microwave heating ensures uniform curing, resulting in perfectly shaped profiles with extremely tight dimensional tolerances and smooth surface finishes.
We manufacture IATF16949 compliant weatherstrips, door seals, window channels, and edge trims that provide exceptional acoustic insulation and waterproofing for vehicles.
Our flame-retardant and smoke-suppressant rubber profiles are engineered for train doors, windows, and interior paneling, meeting strict international transit safety standards.
We produce heavy-duty EPDM and Neoprene door gaskets designed to withstand harsh saltwater environments, extreme weather, and continuous heavy impacts.
Offering specialized Clip-on EMI Shielding Gaskets and waterproof cabinet seals, we ensure IP-rated protection and electromagnetic interference shielding for sensitive equipment.
Our durable window and door glazing seals, expansion joint rubbers, and curtain wall profiles deliver long-lasting weatherproofing for commercial and residential buildings.
We supply rugged shock-absorbing bumpers, rubber fenders, and dust seals that protect industrial equipment and construction machinery in the most demanding work conditions.
From simple D-shapes and U-channels to complex co-extruded profiles with metal wire carriers, we can match any custom CAD geometry.
Specialized compounds like NBR and Neoprene offer outstanding resistance to oils, fuels, and harsh industrial chemicals without degrading.
Our high-grade elastomers maintain a very low compression set, ensuring they bounce back to their original shape even after years of continuous pressure.
Engineered EPDM formulations provide unmatched resistance to sunlight, ozone, and severe weather, preventing cracking in outdoor environments.
Strict tolerance control guarantees an airtight and watertight seal, perfect for acoustic insulation, dust prevention, and vibration dampening.
We utilize 100% virgin raw materials that strictly adhere to international environmental and safety standards, ensuring safe global market entry.
Equipped with an in-house die workshop, we drastically reduce sample turnaround times. Whether you need a specific shore hardness, unique geometry, or co-extruded materials, our engineers turn your CAD drawings into precise physical prototypes quickly and accurately.
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We don't just extrude rubber; we engineer reliability. Operating strictly under IATF16949 standards, our dedicated QA team performs rigorous batch testing for tensile strength, elongation, and tolerance accuracy, ensuring a 100% qualified yield for your assembly lines.
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By bypassing trading companies and controlling the entire supply chain—from raw material mixing to final extrusion—we minimize waste and optimize production speed. This allows us to offer global buyers superior quality profiles at highly competitive factory-direct prices.
Get a Free QuoteWe provide seamless international supply chain solutions for our custom rubber extrusions. Understanding that delivery time is critical for your production schedules, our logistics team expertly handles everything from rapid air freight for urgent samples to cost-effective FCL/LCL ocean freight for bulk orders. We support flexible trade terms including FOB, CIF, and DDP (door-to-door with customs clearance), ensuring your cargo arrives safely, on time, and without cross-border friction.
The primary types include solid rubber extrusion, sponge/foam rubber extrusion, and co-extrusion (combining solid and sponge materials, often with a metal wire carrier). These profiles can be manufactured into D-shapes, P-shapes, U-channels, T-sections, and complex custom geometries to meet specific sealing, dampening, or protective needs.
As a source factory, we support rapid tooling with a standard Minimum Order Quantity (MOQ) of just 500 meters for custom profiles. Our typical lead time for new sample development is 7-10 days, and bulk production usually takes 15-20 days depending on the volume and complexity.
It depends on your environment. EPDM is excellent for outdoor weather and UV resistance (ideal for windows and doors). Silicone offers extreme high/low-temperature stability. NBR is highly resistant to oils and fuels, while Neoprene is versatile for marine and industrial use. Our engineers can help you select the exact compound.
Yes. Simply provide us with your CAD drawings or physical samples. Our in-house tooling workshop will quickly cut the custom extrusion dies and provide you with precise pre-production samples for fitment and quality approval before mass production begins.
