Rubber extrusion plays a vital role in numerous industries, from automotive to construction, providing essential sealing, insulating, and protective functions. Choosing the right rubber extrusion manufacturer is critical for businesses that prioritize performance, customization, and long-term durability.
This article introduces the Top 10 global rubber extrusion manufacturers in 2025. These companies are known for their product quality, material expertise, customization capabilities, and customer service. If you’re sourcing rubber sealing solutions, these are the names you should know.
✅ Top 1: OKIN Rubber（Taiwan Okin Huasu Group Limited）｜China
Website: www.okinrseal.com
Email: [email protected]
Founded in 2000, OKIN Rubber is a leading manufacturer of custom rubber extrusion profiles based in China. The company specializes in EPDM rubber strips, foam sealing profiles, co-extrusion rubber seals, and decorative trims for automotive, container, appliance, and construction industries.
With 21 advanced production lines—including 6 co-extrusion and 3 foam extrusion lines—OKIN stands out for its material expertise, high precision extrusion, strong after-sales support, and global supply capability.
Main Products:
- EPDM Rubber Extrusions
- Foam Rubber Seals
- Co-extruded & Multi-extruded Sealing Profiles
- Automotive Weatherstrips
- Decorative Rubber & Plastic Trims
Pros:
- Strong customization capability, support OEM/ODM
- Wide material range: EPDM, NBR, CR, Silicone, TPV, etc.
- Fast delivery & stable lead time
- Excellent sealing performance & weather resistance
Cons: Focus on B2B wholesale, no retail support
✅ Top 2: Trim-Lok (USA)
With over 50 years of experience, Trim-Lok is known for producing high-quality edge trims, bulb seals, and plastic profiles. Based in California, their products are widely used in automotive and marine applications.
Pros: Excellent product finish, wide catalog
Cons: Higher price point, limited material options
✅ Top 3: GSH Industries (USA)
GSH offers both extrusion and fabrication services. Known for handling diverse materials and custom shapes, the company serves industrial clients with unique needs.
Pros: Strong customization, wide rubber material choices
Cons: Poor product listing visibility, higher pricing
✅ Top 4: Minor Rubber (USA)
Established in 1914, Minor Rubber manufactures grommets, bumpers, and extrusions with a focus on high-precision molded and extruded rubber products.
Pros: Extensive experience, wide rubber material offering
Cons: No adhesive-backed profiles, limited customization
✅ Top 5: Seals + Direct Ltd (UK)
Located on England’s south coast, Seals + Direct offers weatherstripping, EPDM profiles, and marine sealing products with global shipping options.
Pros: Broad product variety, detailed online catalog
Cons: Limited communication channels, relatively high prices
✅ Top 6: Custom Gasket MFG (USA)
A specialist in both extruded and molded rubber parts, Custom Gasket MFG supports custom designs and provides engineering guidance for small to medium production runs.
Pros: Reliable support, custom service available
Cons: Limited profile variety, lacks detailed product listings
✅ Top 7: Reiss Manufacturing Inc (USA)
Reiss focuses solely on silicone rubber extrusion, offering high-quality, FDA and NSF-certified seals for medical, food-grade, and cleanroom use.
Pros: Ideal for silicone-specific applications
Cons: Does not support EPDM, NBR, or general-purpose rubber profiles
✅ Top 8: National Rubber Corporation (USA)
Founded in 1997, this company provides extrusion, molding, and fabrication services using a wide array of materials like fluoroelastomers, nitrile, and SBR.
Pros: Extensive material selection
Cons: Incomplete online product information, low brand visibility
✅ Top 9: Kismet Rubber Products (USA)
With 60+ years of experience, Kismet provides OEM extrusion services for HVAC, agriculture, and industrial uses, focusing on consistency and quality.
Pros: Product testing & quality assurance
Cons: Limited profile designs, lower brand awareness
✅ Top 10: Simolex Rubber Corporation (USA)
Simolex manufactures general-purpose sealing strips, rubber cords, and thermoplastic profiles. It’s ideal for buyers looking for cost-effective, reliable extrusion.
Pros: Affordable pricing, positive customer feedback
Cons: Few product specs online, limited variety
🧩 Final Thoughts
Selecting the right rubber extrusion manufacturer depends on your application, material preferences, and service requirements. Whether you’re looking for automotive weatherstrips, industrial foam seals, co-extruded profiles, or decorative rubber trims, the companies listed above are industry leaders.
If you’re seeking a highly responsive, experienced, and global supplier from Asia, OKIN Rubber offers unmatched value and expertise.