Based in Chicago, IL, Accurate Products Inc. manufactures custom molded and extruded rubber and plastic products. They supply a range of components such as rubber grommets, bumpers, O-rings, and stoppers, including specific automotive rubber hole plugs. The company provides prototyping and JIT shipping, holding ISO 9001:2015 certification.
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Automotive Rubber Parts Manufacturers
Last updated: January 2026
This directory lists 94 automotive rubber parts manufacturers across the United States, from precision custom molders specializing in complex seals to high-volume extruders producing weatherstripping and profiles.
Buyers are typically solving critical problems such as achieving stringent NVH (Noise, Vibration, Harshness) targets in vehicle interiors, ensuring long-term sealing integrity with minimal compression set in under-hood applications, or developing durable components like bushings and mounts that can withstand constant dynamic stress. The challenge often lies in marrying specific elastomer properties – like high temperature resistance or fuel compatibility – with precise dimensional tolerances and consistent manufacturing repeatability.
Supplier types in this space range significantly, each distinguished by their core expertise and equipment. You'll find companies specializing in custom injection and compression molding for intricate three-dimensional parts, manufacturers focused on extrusion for linear profiles and tubing, and dedicated facilities proficient in fabricating die-cut gaskets. A distinct segment also includes specialists in bonded rubber-to-metal components, crucial for chassis and powertrain applications where rubber needs to be permanently adhered to a metal substrate.
Company Directory
94 companies nationwide
Based in New Jersey, AccuSeal Rubber manufactures high-quality custom rubber and silicone products. Their offerings include extruded rubber window and door seals, silicone rubber hoses, fluoro silicone O-rings, and various seals and gaskets. The company serves industrial clients requiring specialized rubber components.
Based in Scotland Neck, NC, AirBoss Rubber Solutions manufactures customized rubber-based formulations and products. They serve the automotive, heavy industry, and defense sectors by developing optimized rubber compounds engineered for durability and performance in specific applications, offering full-service partnership.
Based in Cherry Hill, NJ, American Rubber Products manufactures quality engineered elastomers, including advanced silicone sponge technology, solid silicone, and rubber coated fabrics. They provide custom molded parts and extrusions for critical applications. The company serves demanding industries such as aerospace and automotive, offering state-of-the-art solutions.
Based in Los Angeles, CA, Ames Rubber Manufacturing is a custom rubber products manufacturer with over 70 years of experience. They specialize in molded, extruded, die-cut, and lathe-cut rubber gaskets, seals, and various components. The company provides comprehensive services for elastomeric requirements, serving diverse industrial clients with custom fabrication.
Bay Rubber Company, a contract manufacturer based in Concord, CA, specializes in custom rubber parts and components, including gaskets. They offer CNC cutting, die-cutting, and prototyping services. Serving industries like automotive, aerospace, and industrial, Bay Rubber provides fabrication expertise for diverse high-technology applications.
Bay Seal Company, Inc., based in Hayward, CA, manufactures and distributes gaskets, O-rings, and custom molded shapes. Specializing in rubber and PTFE seals, including spliced and Kalrez O-rings, they provide critical elastomeric components. Serving industrial clients, their custom-molded products are well-suited for automotive rubber parts applications.
Based in Long Beach, CA, Bryant Rubber Corporation is a precision manufacturer of high quality, tight tolerance molded components. Established in 1971, the company leverages extensive engineering experience and operates a substantial manufacturing facility, producing custom rubber parts for various industrial applications.
Canyon Components, based in Salem, NH, specializes in manufacturing EPDM O-rings and custom rubber parts. Their products are designed to offer superior resistance to water, steam, weathering, and ozone, making them suitable for demanding industrial and automotive applications.
Based in Irvine, CA, California Sealing Solutions specializes in custom rubber parts and sealing components, including rubber extrusion, custom molded rubber, O-rings, gaskets, and door seals. Serving industrial applications, they also offer metal stampings, machined metal parts, and plastic injection molding services, providing tailored engineering solutions.
Based in Bakersfield, CA, Century Rubber, Inc. manufactures precision custom elastomer components for the automotive, aerospace, medical, and defense industries. They specialize in rubber seals, die-cut gaskets, boots, and bellows, utilizing homogeneous molding, die cutting, and rubber-to-metal bonding. The company handles both prototype and high-volume production.
Based in Bowling Green, KY, Classic Performance Products Inc. manufactures and supplies automotive rubber parts, including control arm bushings. The company provides components for vehicle suspension systems, catering to both original rebuilds and performance enhancements for classic vehicles.
Clean Seal, Inc. manufactures extruded rubber seals and automotive hoses, including specialized DEF hoses for diesel exhaust fluid transport. The company provides sealing solutions and rubber components for diverse industries, serving commercial fleets and operations. They offer updated product information and expanded part listings.
Clester's Auto Rubber Seals manufactures automotive rubber parts and seals in the USA. Utilizing original specifications and fine rubber polymers, their products offer top UV protection. Sponge parts are designed for softness, toughness, and durability. With over 30 years of experience, the company serves restoration needs, providing high-quality components.
Century Rubber Company, Inc. manufactures custom molded and die-cut elastomer products with expertise in rubber-to-metal vulcanized components. They produce precision rubber parts suitable for diverse industrial needs, including robust applications within the automotive sector, leveraging their own manufacturing facilities.
Based in Diamond Bar, CA, Coi Rubber Products, Inc. manufactures custom rubber and plastic products. Specializing in compression molded rubber, they offer molding, extrusion, and rubber-to-metal bonding. Coi Rubber serves diverse industries, including automotive, industrial, and HVAC, providing competitive pricing and fast lead times.
Contact Rubber Corporation, based in Bristol, WI, manufactures high-quality custom rubber components and rubber rollers. Serving diverse industries across North America since 1962, the company specializes in tailored rubber solutions for various applications, including potentially automotive rubber parts.
Cooper Standard custom extrudes rubber for various industries, providing advanced sealing and fluid handling solutions. They manufacture quick connectors with integrated temperature sensors and eCoFlow™ switch pumps, recognized with automotive innovation awards. Serving automotive and diverse industrial sectors, Cooper Standard is a full-service supplier.
Corry Rubber Corporation specializes in the molding and extrusion of custom precision elastomers. With 60 years of experience, the company manufactures elastomeric components for the automotive, rail transportation, OEM, HVAC, appliance, and medical industries. They are ISO-9001:2015 certified and provide engineered solutions.
Based in Lake City, MI, Corvette Rubber Company manufactures high-quality American-made rubber restoration weatherstripping for Corvettes. They produce a wide range of parts for multiple Corvette generations, from C1 (1953-1962) to C6 (2005-2013), focusing on direct-to-consumer sales for automotive restoration.
Based in McComb, OH, Crushproof Tubing Co. specializes in manufacturing custom rubber hose and tubing, including garage exhaust hoses, air intake hoses, bellows, boots, and sleeves. Since 1949, they have served the automotive aftermarket and diverse industries like medical, military, and agriculture, offering OEM solutions.
Based in Franklin, WI, Custom Fabricating & Supplies (CFS) specializes in precision die cutting, custom molding, and industrial masking solutions. The company manufactures rubber molded parts, silicone parts, gaskets, seals, and spacers for industrial customers and vehicle OEMs. CFS is an ISO 9001:2015 certified supplier.
Based in Cleveland, OH, Custom Rubber Corp. manufactures custom molded rubber components. The company supplies a wide array of quality rubber parts to Tier 2 and Tier 3 automotive companies. All products are proudly made in the USA.
Based in Fullerton, CA, E.J. Whitney Company, Inc. provides industrial machine parts, specializing in manufacturing custom components from scratch. Since 1979, they offer capabilities in urethane, silicone, and rubber, complemented by metal fabrication and custom engineering. Their on-site machine shop also services and repairs rollers.
Based in Plain City, OH, Elastostar Rubber Corporation manufactures custom extruded silicone rubber products, including gaskets and seals. The company serves various industries, prominently the automotive sector, with ISO 9001:2015 and IATF 16949:2016 certified manufacturing in the USA.
Based in Kent, OH, ELBEX Corporation is an ISO Certified manufacturer specializing in custom rubber and silicone extrusions. They produce a wide array of extruded rubber parts for diverse industrial applications, serving sectors such as the automotive industry with high-quality components.
Based in Akron, OH, Enterprise Rubber, Inc. is a US supplier specializing in custom rubber products, rubber-to-metal bonding, and rubber mounts for vibration isolation. They provide manufacturing services for diverse industrial applications, including those requiring custom engineered rubber solutions.
Based in Corona, CA, Elastomer Technologies, Inc. specializes in customer-tailored rubber molding and die-cutting part productions. Since 1975, they have offered a wide range of elastomer manufacturing capabilities, including compression, transfer, prototype, and injection molding services, providing high-quality engineered parts.
Exactseal Inc. manufactures custom-engineered extruded and molded rubber components, including O-rings, gaskets, seals, and profiles. Based in Indianapolis, IN, the company produces durable rubber tubing, hoses, grommets, bellows, and mounts. Exactseal serves various industrial sectors with high-quality, USA-made rubber products.
Based in West Chicago, IL, Extruded Solutions Inc. is a US-based manufacturer with over 30 years' experience in custom rubber extrusion and taping. They specialize in producing profiles from dense and sponge materials, including high-quality EPDM rubber seals for truck caps and tailgates, serving various automotive applications.
Based in Lake Zurich, IL, Fairchild Industries specializes in manufacturing custom rubber and plastic seals. Their products are designed in the USA for diverse applications, primarily serving the automotive and machinery industries. The company focuses on providing tailored sealing solutions to meet specific customer requirements.
Based in Rancho Cucamonga, CA, Goodyear Rubber has provided custom rubber solutions since 1961. The company specializes in rubber molding, extrusion, mixing, and calendaring for various industries, including automotive. They focus on precision engineering, quality, and sustainable manufacturing practices.
Based in Woburn, MA, Greene Rubber Company engineers and manufactures rubber and plastic solutions. They specialize in rubber molding, over-molding, O-rings, gaskets, seals, and extrusions. The company also provides shock and vibration isolators for mission-critical systems, serving aerospace, defense, medical, and general industrial applications.
Based in Valencia, CA, LMP Rubber manufactures high-quality, precision molded rubber products and custom parts. Specializing in compression and transfer molding with elastomers like Silicone, Viton®, and Nitrile, they serve the Automotive, Aerospace, and Biomedical industries, offering services from prototyping to full production.
Based in Rosemead, CA, Lusida Products Inc. custom manufactures a range of rubber components for the automotive and heavy trucking industries. Their offerings include molded rubber parts, O-rings, gaskets, seals, silicone hoses, CV boots, radiator hoses, engine mounts, and rubber-to-metal vibration mounts.
Based in Princeton, IN, Mid-States Rubber Products, Inc. is an IATF 16949:2016 certified manufacturer specializing in custom rubber and plastic molding and extrusion. They provide injection, compression, and rubber extrusion services, supported by custom mixing, finishing, and product design engineering for heavy industries.
Midwest Rubber Company, founded in 1946, offers single-source rubber and plastics engineering and manufacturing. Specializing in automotive solutions for OEMs and Tier One suppliers, they produce steering column seals, interior soft fascia trim, and noise/vibration dampening grommets. Processes include dip, slush, and thermoset rubber molding.
Based in Canonsburg, PA, National Rubber Corporation specializes in custom rubber solutions for the automotive industry. They are experts in extruded rubber products, custom molding, mixing, and die cutting services. Their offerings include seals, gaskets, grommets, U-channels, O-rings, and vibration control components engineered to tight tolerances.
Based in Ontario, CA, Nolathane USA manufactures high-performance automotive suspension and drivetrain components. The company specializes in producing durable polyurethane bushings, sway bars, and control arms. These parts serve as direct replacements and upgrades for OEM rubber components in various vehicles, improving steering, handling, and ride stability.
Pacific Die Cut Industries, located in Hayward, CA, specializes in custom die cut solutions for the automotive sector. They are a Tier 1 & 2 supplier of NVH components, extruded and laminated gaskets, and seals made from materials like EPDM sponge rubber. The company serves top global automotive OEMs.
Based in Yorba Linda, CA, Pacifictech Molded Products specializes in precision-engineered rubber and plastic molding solutions. The company provides custom manufacturing services including injection molding, rotational molding, rubber extrusion, plastic extrusion, CNC machining, die casting, and sheet metal fabrication for a wide range of industries.
PHB Corporation is an IATF 16949 certified, U.S.-based manufacturer specializing as an automotive injection molding supplier for rubber components. The company also offers extensive capabilities in aluminum and zinc die casting, CNC machining, plastic molding, and tool and die services, providing comprehensive turnkey solutions.
ParkOhio Rubber and Plastics is an IATF certified contract manufacturer, globally recognized for its expertise in engineered rubber and plastic injection molded production. Based in Cleveland, OH, they provide automotive rubber parts and other components, utilizing their own facilities to serve commercial and industrial clients.
Based in San Leandro, CA, Poly-Tek provides comprehensive rubber molding, cast polyurethane molding, and plastic injection molding services. The company specializes in manufacturing custom components for various industrial applications, serving diverse client needs for molded parts.
Based in Portland, OR, Premier Rubber and Supply specializes in the precision engineering and manufacturing of custom rubber hoses. The company also provides metal tubing solutions tailored to meet specific client needs for various industrial applications, including those within the automotive sector requiring custom rubber components.
Based in Ontario, CA, Prothane manufactures high-performance urethane-based products for cars and trucks. Their extensive line of automotive components, often used as an upgrade or alternative to rubber parts, is designed for durability and performance, all produced within their facilities in the USA.
RD Rubber Technology Corp., based in Santa Fe Springs, CA, specializes in custom rubber product manufacturing. They offer compression, injection, and transfer molding for engineered components like seals and gaskets. The company provides rubber-to-metal bonding, product development, and prototyping services for diverse industrial applications.
Based in Carson City, NV, REDCO is a USA-made manufacturer of custom rubber parts and molded rubber products. Since 1948, the company has provided custom rubber molding, rubber-to-metal bonding, die cutting, and rubber rollers for a variety of industries. They specialize in delivering quality custom rubber parts.
Based in Spokane, WA, Redwood Plastics and Rubber manufactures custom plastic and molded rubber products. With over 50 years of experience, they provide in-house crafting and manufacturing solutions addressing wear, noise, and corrosion for various industrial applications, ensuring efficiency and safety.
Reiss Manufacturing, Inc. specializes in custom silicone rubber manufacturing for automotive and diverse industries. They produce components like door seals, engine seals, tubing, hoses, and protective covers. With extensive in-house capabilities, their solutions tackle challenges like heat, chemical resistance, and EMI/RFI shielding.
Rimnetics is a reaction injection molding (RIM) manufacturer specializing in polyurethane injection molding services. The company provides custom molded solutions for structural parts and enclosures, serving diverse industries including medical, electronics, construction, and automotive. They offer expertise in producing complex, durable, and lightweight polyurethane components.
Based in Minneapolis, MN, Robinson Rubber Products Company, Inc. is an ISO 9001:2015 certified custom molding manufacturer of elastomeric and thermoplastic components and assemblies. They offer design assistance, advanced material formulation, and value-add services including assembly and packaging for various industries.
RPM Industrial Rubber Parts, based in Depew, NY, manufactures custom and standard high-quality rubber components. Specializing in molded parts, extrusions, trim seals, and vibration control solutions, they deliver precision and durability. Serving diverse industries across North America, RPM is ISO 9001:2015 certified.
Based in Rochester, NH, The Rubber Group manufactures high-performance custom rubber products and precision-molded components. They specialize in tight-tolerance rubber solutions for mission-critical applications within aerospace, defense, and military vehicles. The company is ISO 9001:2015 certified.
Based in Barberton, OH, Rubber Associates manufactures custom molded rubber components. They serve automotive, industrial, and aerospace sectors, specializing in compression and transfer molding, plus rubber-to-metal bonding. The company offers in-house design, prototyping, chlorination, and cryogenic de-flashing services, drawing on expertise since 1953.
Based in Cuddy, PA, Santopseal Corporation manufactures custom thermoplastic seals, gaskets, and tubing. The company specializes in custom profile extrusions and molded rubber parts, including O-rings and Santoprene™ TPV rubber sheets. It provides custom extruded rubber solutions for industrial applications.
Based in Fullerton, CA, S&H Rubber specializes in custom rubber extrusions. They handle both one-time special orders and high-volume production runs, utilizing advanced extruders to create custom rubber profiles and a variety of other rubber products for industrial applications.
Based in Miramar, FL, SIMTEC Silicone Parts specializes in custom injection molded Liquid Silicone Rubber (LSR) and multi-shot components. They provide turnkey solutions for automotive, medical, and industrial leaders, utilizing advanced molding technologies and ISO/IATF certifications for quality, high-volume production.
Sperry & Rice LLC, located in Killbuck, OH, manufactures custom rubber extrusions and molded parts. The company offers in-house engineering, custom rubber mixing, extrusion, and mandrel forming capabilities. They serve as an OEM supplier for the automotive industry and hold ISO 9001:2015 certification.
Based in Elk Grove Village, IL, Standard Rubber Products specializes in custom die cutting and gasket fabrication services. The ISO 9001:2015 certified manufacturer converts various materials to produce high-quality gaskets and custom parts. They serve diverse industries, including automotive, electric vehicles, aerospace, and medical.
Based in Linden, CA, Stockton Rubber Mfg. Co., Inc. manufactures custom rubber products for the automotive industry. With over 30 years' experience, they offer compression, transfer, handbuilt, and mandrel built parts. Prototype services are available from their US facilities.
Based in Berea, OH, Timco Rubber has supplied custom molded and extruded rubber parts and materials since 1956. The company specializes in high-performance rubber solutions for Tier 2 automotive suppliers, offering a range of materials for tubes, seals, gaskets, and weatherstripping. They also serve the HVAC market.
Trim-Lok, based in Buena Park, CA, manufactures plastic and rubber trims, seals, and gaskets. Specializing in rubber and plastic extrusions since 1971, they provide custom-designed profiles and in-stock solutions. They supply components for industrial applications, including automotive rubber parts such as door seals.
Based in Livermore, CA, Tri Valley Hose specializes in custom manufacturing of industrial, hydraulic, and automotive hose assemblies. They provide tailored fluid conveyance solutions for OEM and DIY needs, including custom brake lines, power steering, air conditioning, transmission cooler, and fuel lines.
Based in Danbury, CT, Vanguard Products Corporation is a full-service manufacturing and engineering company specializing in high-precision elastomeric fabricated goods. They produce custom rubber seals, gaskets, O-rings, tubing, extrusions, and moldings from silicones and other engineered elastomers for various industrial applications.
Based in La Habra, CA, Vip Rubber & Plastic manufactures custom automotive rubber components, extrusions, and molded rubber products. They also specialize in plastic extrusions and various rubber sheet goods. The company has been producing high-quality parts in the USA since 1961.
Based in Orange, CA, WARCO manufactures automotive rubber components and sheets. The company specializes in products made from materials like low-smoke Neoprene, Nitrile, and EPDM, custom-engineered to meet specific industry requirements.
Anand NVH Products is a US-based manufacturer specializing in automotive NVH (Noise, Vibration, Harshness) parts. Leveraging their design capabilities and US facility in Imlay City, MI, they deliver components that enhance vehicle strength, stability, and comfort for the automotive industry.
Based in Ligonier, IN, BRC Rubber & Plastics, Inc. is a full-service design, development, and engineering company. They specialize in manufacturing custom rubber and plastic components, offering expertise from initial concept through production. The company serves various industrial applications, including the automotive sector, with precision manufacturing capabilities.
GSW Auto Parts manufactures premium rubber bushings, designed for excellent vibration control. Their products are suitable for various automotive chassis applications. The company offers flexible manufacturing solutions, including both OEM and custom orders to meet specific client requirements.
Based in Worcester, MA, Jefferson Rubber Works, Inc. (JRW) manufactures custom molded rubber parts. With over 50 years of experience, including significant work in the automotive industry, JRW specializes in precision compression molding. They offer a wide range of materials and advanced engineering capabilities for diverse industrial needs.
Based in Carver, MN, Lakeview Industries specializes in custom noise, vibration, and harshness (NVH) solutions. They manufacture parts using a variety of foam, rubber, and molded materials, providing essential components for automotive and other industrial applications.
Prabhat USA has manufactured elastomeric automotive components for over 50 years, since 1966. Specializing in suspension parts, brake components, bushings, and engine components, the multi-generational family-owned business also provides custom compounding and production processes for various other industries including vibration control and home appliances.
Rubber Feet Warehouse manufactures and supplies durable rubber components including feet, bumpers, washers, grommets, and vibration isolators. Specializing in parts designed to reduce noise and vibration, their products, like isolator mounts for engines and appliances, serve industrial and automotive applications.
Southern Michigan Rubber, based in Three Rivers, MI, manufactures custom rubber products and specializes in high-precision rubber-to-metal bonding. The ISO 9001:2015 certified company produces gaskets, seals, vibration dampeners, and bumpers for a wide range of industrial applications, utilizing rubber molding and lathe cutting capabilities.
Based in San Jose, CA, Ace Seal manufactures a variety of custom molded rubber components, including O-rings, gaskets, and seals. With over 35 years of experience, the company serves numerous industries, explicitly providing precision rubber solutions for automotive and transportation applications from its expansive facilities.
Based in Hot Springs, AR, Arco Silicone is a custom US manufacturer of extruded and molded silicone and rubber parts. A division of Alliance Rubber Company, they provide custom bands, cording, and tubing for industrial applications, offering resistance to wide temperatures, UV, Ozone, chemicals, and oil.
BRP Manufacturing, Inc., located in Lima, OH, manufactures sheet and extruded rubber products for automotive, transportation, military, and aerospace industries. With extensive facilities and advanced systems, BRP produces various synthetic polymers like neoprene, nitrile, and EPDM rubber, meeting diverse industrial and commercial customer needs.
Based in Orange, CA, California Gasket & Rubber is a custom manufacturer of industrial sealing devices. Their dedicated Rubber Division specializes in producing a wide range of precision rubber parts, from tiny to large components. The company also manufactures gaskets, metal parts, and hoses for diverse industrial applications.
Based in Indianapolis, IN, Echo Engineering specializes in custom manufacturing and rapid prototyping using materials like silicone and EPDM. The company provides engineered solutions for masking, sealing, and NVH applications, primarily serving the automotive, heavy machinery, and metal finishing industries with specialized components.
Based in Houston, TX, Eutsler Technical Products, Inc. custom manufactures precision rubber products for industrial OEMs worldwide. They produce a variety of custom parts including gaskets, o-rings, seals, grommets, and tubes from materials like EPDM, nitriles, and fluorocarbons. The company is ISO 9001:2015 certified.
Based in Blue Ridge, GA, Kismet Rubber Products manufactures custom extruded rubber profiles, tubing, cord, gaskets, seals, washers, and formed hose. They specialize in EPDM extrusions for OEM, replacement parts, and industrial applications. With over 60 years of experience, they provide high-performance materials for diverse sectors.
Based in Plymouth, MN, Minnesota Rubber & Plastics engineers and manufactures precision molded elastomer and thermoplastic components. It specializes in solving difficult sealing and component challenges for original equipment manufacturers (OEMs) in automotive, transportation, and industrial sectors. The company offers material science expertise and global manufacturing capabilities.
Based in St. Louis, MO, MOOG manufactures automotive suspension bushings from durable polyurethane or neoprene rubber. These precision-engineered components are designed to enhance vehicle safety, improve handling, and reduce noise for various automotive applications. MOOG provides high-quality rubber parts, focusing on reliable performance for the aftermarket sector.
ProSeals USA, based in City of Industry, CA, manufactures custom rubber and plastic components for automotive, medical, and industrial clients. With IATF 16949 certification, they provide advanced engineering and manufacturing solutions, including rubber molding, plastic injection molding, extrusion, and die cutting. Products include seals, hoses, o-rings, and grommets.
Based in San Luis Obispo, CA, Precision Replacement Parts manufactures a variety of extruded and molded EPDM rubber, PVC, and HDPE based plastics. The company supplies these components for the automotive industry, serving both classic and late model vehicles with custom-engineered solutions.
Qualiform Rubber Molding Company operates an ISO 9001:2015 certified facility, specializing in custom rubber molded components. They produce critical automotive parts, including seals, gaskets, and vibration control solutions for various applications.
Based in Shakopee, MN, Rubber Industries, Inc. specializes in custom molded rubber and silicone parts. They offer various molding methods like injection, compression, and transfer molding, utilizing materials such as EPDM, Nitrile, and Viton. Capabilities include rapid prototyping, high-volume production, and rubber-to-metal bonding.
Based in San Diego, CA, Rubber the Right Way manufactures reproduction rubber parts and weatherstripping for classic American vehicles. They produce in-house, maintaining OEM quality for a wide variety of components, including hood seals, trunk seals, and glass channels, shipping globally.
Steele Rubber Products specializes in providing high-quality rubber seals and weatherstripping for a diverse range of applications, including automotive, RV, marine, EMS vehicles, and street rods. Based in Denver, NC, the company offers durable rubber parts such as cabin door seals, compartment door seals, and window seals, ensuring proper fit and reliable performance.
Stigall Industrial manufactures a national line of silicone liquid foam products specifically designed for electric and autonomous vehicle manufacturers. The company specializes in providing custom silicone and foam components, ensuring they meet the stringent quality and UL rating requirements for demanding automotive applications.
Sur-Seal manufactures engineered components and materials, specializing in die-cut, molded, formed, and extruded rubber products such as seal gaskets. AS9100- and ISO9001-certified, they are an Automotive Preferred Converter for 3M, providing precise rubber parts and custom seal solutions for manufacturing.
Based in Middlefield, OH, Universal Polymer & Rubber Ltd., Inc. is a U.S. manufacturer of custom rubber extrusions, molded parts, and die-cut components. The company provides high-quality rubber components for critical environments, serving the automotive, heavy vehicles, and transportation industries.
SumiRiko Ohio, Inc. manufactures anti-vibration rubber products and hose components for the automotive industry. They produce hydraulic and conventional engine mounts, body mounts, engine drivelines, and exhaust isolation mountings. The company also offers interior equipment and sound controlling products.
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How to Choose a Company
- Verify their IATF 16949 certification and their proven track record with PPAP (Production Part Approval Process) and APQP (Advanced Product Quality Planning) documentation, as these are non-negotiable for automotive industry supply.
- Assess their in-house material science and compound development capabilities; ask for specific data on their experience with common automotive elastomers like EPDM, NBR, Silicone, HNBR, or FKM, tailored for your application's fluid resistance and temperature requirements.
- Evaluate their molding capabilities (compression, transfer, injection) and extrusion expertise relevant to your part's geometry, volume, and required Shore Hardness; ensure they can consistently achieve tight dimensional tolerances.
- Inquire about their in-process and post-production quality control for critical parameters such as compression set testing, tensile strength, tear resistance, and specific environmental aging tests relevant to automotive applications.
- Scrutinize their tooling ownership and maintenance policies. A common gotcha: ensuring your tooling is properly maintained, stored, and insured, with clear agreements on replacement costs and lead times for complex multi-cavity molds.
- Demand evidence of their DFM (Design for Manufacturability) processes specific to elastomers; look for manufacturers who can provide Mold Flow Analysis data to predict potential issues like flash, voids, or knit lines before costly tool fabrication.
- For bonded rubber-to-metal parts, confirm their expertise in surface preparation, adhesive application, and post-cure testing to ensure robust adhesion that meets automotive lifecycle demands for vibration isolation or structural integrity.
Frequently Asked Questions
What certifications are absolutely essential for automotive rubber parts manufacturers?
For any manufacturer supplying parts into the automotive industry, IATF 16949 certification is paramount, demonstrating a robust quality management system specifically for automotive production. Beyond this, a supplier must be proficient in the Production Part Approval Process (PPAP) and Advanced Product Quality Planning (APQP), which are standard requirements for validating new or modified components in the automotive supply chain.
How does compound formulation impact the performance and cost of an automotive rubber part?
Compound formulation is critical, directly influencing a part's Shore Hardness, elasticity, compression set, fluid resistance (to oils, fuels, brake fluid), and temperature range. Using the correct elastomer base (e.g., EPDM for weather resistance, NBR for oil resistance) combined with specific additives can optimize performance for the application. However, more specialized or high-performance compounds will typically increase material costs, so it's a balance of performance versus budget.
What critical design factors should be considered to prevent compression set failure in automotive seals?
To prevent compression set failure, designers must carefully consider the elastomer's specific compound, the application's operating temperature range, and the amount of consistent compression applied. Specifying a rubber compound with low compression set characteristics, designing adequate gland compression without over-squeezing, and ensuring the part maintains its original thickness recovery over its service life are key to long-term sealing effectiveness.
Should I prioritize injection molding or compression molding for my automotive rubber component?
The choice between injection and compression molding depends on part complexity, volume, and material. Injection molding offers higher volumes, faster cycle times, and often lower unit costs for simple to moderately complex parts, but requires higher tooling investment. Compression molding is better suited for larger, simpler parts, lower volumes, or certain high-durometer materials, with typically lower tooling costs but longer cycle times. Consider a manufacturer's Mold Flow Analysis capabilities for complex injection molded designs.
What is the significance of Mold Flow Analysis in developing complex automotive rubber components?
Mold Flow Analysis (MFA) is a critical simulation tool that predicts how a rubber compound will flow into a mold cavity. For complex automotive components, MFA helps identify potential issues like incomplete fills, air traps, knit lines, or excessive shear heating before tooling is cut. This preemptive analysis ensures optimal part quality, reduces costly tooling modifications, and helps fine-tune gate locations and runner designs for efficient, high-quality production.
How do I evaluate a supplier's capability for producing bonded rubber-to-metal parts for automotive applications?
When evaluating bonded rubber-to-metal capabilities, look for suppliers with a strong understanding of surface preparation techniques (e.g., grit blasting, phosphating), adhesive selection tailored to specific elastomers and metals, and meticulous process control for bond integrity. Ask about their in-house testing methods, such as destructive pull tests, shear tests, and environmental aging tests, to validate the adhesion strength and durability required for demanding automotive applications like engine mounts or suspension bushings.