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.
Formulated with 100% virgin EPDM compounds, our extrusions deliver ultimate resistance to UV rays, ozone, and severe outdoor weathering. Available as solid profiles, sponge seals, or with industrial-grade self-adhesive backing (tapes), they provide exceptional watertight and airtight sealing for doors, windows, and enclosures without shrinking over time.
Engineered for extreme thermal stability and harsh industrial environments, our commercial-grade silicone rubber seals perform flawlessly in applications ranging from sub-zero conditions to high-heat equipment. With excellent UV, ozone, and electrical insulation properties, these highly durable profiles maintain their high elasticity and provide a reliable, long-lasting seal without cracking or degrading over time.
Designed for harsh mechanical and industrial environments. Our NBR (Nitrile) rubber seals and solid rubber cords offer outstanding resistance to motor oils, fuels, and industrial fluids. For applications requiring strict fire safety, our Neoprene gaskets provide excellent flame retardance, available with UL94 V-0 compliant formulations.
Combining the performance of rubber with the processing efficiency of plastics. Our TPE/TPV gaskets offer excellent low compression set recovery and are fully eco-friendly. For highly cost-effective solutions requiring vibrant colors or rigid-to-flexible co-extrusion, our custom PVC extrusions remain an industry standard.
We specialize in manufacturing complex co-extruded profiles that seamlessly combine solid rubber, sponge rubber, and embedded steel wire carriers. These multi-durometer profiles offer the perfect balance of rigid gripping strength and flexible sealing compression for demanding structural applications.
Beyond standard seals, we supply custom solid rubber cords, heavy-duty edge trims, and robust cable protectors. Whether you need a simple D-shape or a highly specific metal-reinforced edge guard to protect sheet metal, our in-house tooling ensures precise geometries and a secure fit.
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.
As a custom OEM manufacturer, we produce a full spectrum of profiles. Our standard shapes include D-seals, P-strips, U-channels, E-shapes, and solid cords. For complex applications, we specialize in advanced co-extrusion—seamlessly combining solid rubber, sponge rubber, and embedded steel wire carriers into a single, highly durable profile.
The choice depends strictly on your environment. EPDM is the industry standard for outdoor weather, UV, and ozone resistance. Silicone is required for extreme high/low temperatures. NBR (Nitrile) is essential when the seal will be continuously exposed to motor oils or fuels, while Neoprene offers excellent flame retardance for industrial use.
Absolutely. Equipped with an in-house die workshop, our engineering team can turn your 2D/3D CAD drawings (DWG, DXF, STP) into precise physical extrusion prototypes quickly. We ensure strict tolerance control to match your exact assembly requirements.
As a direct source factory, we support highly competitive tooling and flexible production. Our baseline MOQ typically starts at 500 meters for standard profiles, but this may vary depending on the cross-sectional weight and material setup. For lead times, our in-house tooling workshop enables rapid sample development in just 7-10 days. Standard bulk production is highly efficient, usually completed within 15-20 days based on volume.
