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Seal Manufacturers

Last updated: January 2026

This directory lists 111 seal manufacturers across the United States, from precision-molded O-rings and gaskets to custom extruded profiles and highly engineered spring-energized seals.

Buyers in this space are often solving critical problems related to leak prevention, friction reduction, or extending equipment lifespan in harsh operating conditions. They require partners capable of navigating complex elastomer selection, validating permeation rates, and ensuring cleanroom manufacturing protocols for sensitive applications. The stakes are high; a poorly chosen seal can lead to catastrophic equipment failure, costly downtime, or regulatory non-compliance.

The manufacturers in this directory represent a diverse spectrum, ranging from custom compounders and molders specializing in exotic materials like perfluoroelastomers (FFKM) or fluorosilicone, to high-volume producers of standard AS568 O-rings and extruded profiles. Some focus on specific industries, offering certifications like USP Class VI for medical devices or NSF/ANSI 61 for potable water systems, while others provide extensive engineering support for intricate component design, including finite element analysis (FEA) to predict seal behavior under stress.

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Company Directory

111 companies nationwide

Aero Rubber Company®, Inc.

Tinley Park, IL

Aero Rubber Company, Inc. is an ISO 9001:2015 certified manufacturer of high-volume custom rubber parts for B2B industrial applications. They provide consultative engineering to develop parts to exact specifications, alongside industrial and custom-printed rubber bands. The company focuses on delivering quality solutions and meeting client deadlines.

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American High Performance Seals

American High Performance Seals (AHPS) provides specialized manufacturing services for high-performance seals. The company emphasizes its expertise in seal applications, understanding specific business and equipment requirements for its clients.

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Allegheny York

Based in Emigsville, PA, Allegheny York manufactures and distributes quality seals and packings. The company serves a diverse range of sectors, including commercial, industrial, and military applications, providing reliable sealing solutions for critical needs.

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Alpha Die Cutting

San Diego, CA

Based in San Diego, CA, Alpha Die Cutting manufactures precision custom industrial gaskets and seal gaskets. The company provides expert die cutting services for various materials, supporting both prototyping and large-scale production needs. They are certified to AS9100D / ISO9001:2015 standards.

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American Rubber Corp

Chesterfield, IN

Based in Chesterfield, IN, American Rubber Corp manufactures custom and standard rubber seals, gaskets, O-rings, and molded components. They also provide various rubber extrusions and diaphragms, serving automotive, aerospace, marine, and pharmaceutical industries with precision manufacturing for diverse sealing solutions.

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Ames Rubber Manufacturing

Los Angeles, CA

Based in Los Angeles, CA, Ames Rubber Manufacturing specializes in custom molded, extruded, die cut, and lathe cut rubber gaskets, seals, and components. With over 70 years of experience, the company assists engineers with design expertise, material selection, and elastomer integration.

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ASNA

Fremont, CA

Based in Fremont, CA, ASNA (Applied Seals N.A. Inc.) manufactures high-performance semiconductor grade perfluoroelastomer (FFKM) seals and O-rings. Specializing in total sealing solutions, they offer cost efficiency and short lead times. ASNA also provides R&D and engineering services for diverse industrial applications.

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Atlantic Gasket Corporation

Based in Philadelphia, PA, Atlantic Gasket Corporation manufactures custom gaskets, die-cut parts, and rubber molded products. They employ advanced rotary, flatbed die-cutters, and waterjet cutting for precision sealing solutions. Serving various major industry groups globally, the company was founded in 1947.

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Austin Seal Company

Austin, TX

Based in Austin, TX, Austin Seal Company manufactures a range of seals, o-rings, gaskets, and custom molded shapes. They specialize in products made from Teflon, PTFE, and other elastomeric materials. The company serves diverse industrial sectors, including semiconductor, pharmaceutical, chemical processing, oil & gas, and aerospace industries.

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Bay Rubber Company

Concord, CA

Based in Concord, CA, Bay Rubber Company is a fabricating distributor and contract manufacturer. They specialize in manufacturing and fabricating commercial rubber products and components, including industrial hoses and seals. Capabilities include CNC knife cutting, laser cutting, and die cutting for gaskets, serving diverse industrial sectors.

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Bay Seal Company

Hayward, CA

Bay Seal Company, founded in 1957, manufactures and distributes a wide range of gaskets and sealing products. Based in Hayward, CA, the company specializes in solutions like Kalrez O-rings, spliced O-rings, and custom molded shapes, serving industrial clients with quality products and design expertise.

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Beacon Gasket & Seals Co.

Lakewood, OH

Based in Lakewood, OH, Beacon Gasket & Seals Co. specializes in the manufacturing of a wide range of sealing solutions. Their product line includes non-metallic, metal, and high-temperature gaskets, as well as expansion joints and hydraulic and pneumatic packings for various industrial applications.

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Caliber Sealing Solutions

Corona, CA

Based in Corona, CA, Caliber Sealing Solutions manufactures industrial sealing products, including custom and standard gaskets, o-rings, rubber seals, and high-pressure hoses. The company has provided precision solutions since 1983 and holds ISO 9001:2015 certification.

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Cannon Gasket

Cannon Gasket is a domestic and global provider specializing in gaskets for Original Equipment Manufacturers (OEM). The company serves a diverse range of industries, including aerospace, irrigation, agriculture, and medical sectors. It offers custom sealing solutions to meet the specific needs of various industrial applications.

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Clark Seals

Tulsa, OK

Based in Tulsa, OK, Clark Seals is a specialized engineering firm and precision manufacturer of elastomeric seals for original equipment manufacturers and the oil and gas industry. They provide custom seal design, application engineering, and problem seal analysis to deliver high-quality, optimized sealing solutions.

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Clean Seal, Inc.

South Bend, IN

Based in South Bend, IN, Clean Seal, Inc. specializes in manufacturing extruded rubber seals and automotive hose. They provide comprehensive sealing solutions for diverse industries, including the automotive and work truck sectors. The company offers products such as DEF hose, gasket profiles, and trim moldings, focusing on superior service and quality.

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Coi Rubber Products, Inc.

Diamond Bar, CA

Based in Diamond Bar, CA, Coi Rubber Products, Inc. is a rubber molding manufacturer specializing in custom rubber, plastic, thermoplastic, and bonded products. They utilize molding, extrusion, and rubber-to-metal bonding techniques to serve diverse industries including automotive, industrial, food processing, HVAC, and appliance. The company focuses on compression molded rubber products.

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Custom Gasket Manufacturing LLC

Englewood Cliffs, NJ

Custom Gasket Manufacturing LLC specializes in producing high-performance gaskets and sealing products. The company offers precision die cutting, rubber molding, rubber extruding, waterjet, laser, and flash cutting services. They provide rapid prototyping and serve a wide range of industries.

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East Texas Seals, LLC

Van, TX

Based in Van, TX, East Texas Seals, LLC specializes in custom molded seal solutions using high-quality compounded elastomers. They provide a comprehensive selection of fluid sealing products, including Parker o-rings, along with inventory management and kitting services tailored to client specifications.

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Elastostar Rubber Corporation

Plain City, OH

Based in Plain City, OH, Elastostar Rubber Corporation manufactures custom extruded silicone rubber seals and gaskets. Serving industries like aerospace, medical, automotive, and food, the company holds ISO 9001:2015, AS9100D, and IATF 16949 certifications. They specialize in high-quality platinum cured and food-grade silicone rubber products.

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EPM

Stockbridge, GA

Based in Stockbridge, GA, EPM manufactures and supplies industrial seals and gaskets. They offer a diverse inventory including standard and custom hydraulic, pneumatic, oil, and mechanical seals, O-rings, and molded rubber. EPM also provides reverse engineering services to quickly meet specific manufacturing plant needs.

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Engineered Seal Products

Cedar Rapids, IA

Engineered Seal Products manufactures and distributes industrial seals and o-rings, serving the global OEM market for over 50 years. They offer in-house engineering expertise and supply chain solutions from design to delivery, ensuring leak-free systems for diverse industrial applications.

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Exactseal Inc

Indianapolis, IN

Exactseal Inc. based in Indianapolis, IN, manufactures precision-engineered extruded and molded rubber products. The company specializes in O-rings, gaskets, and custom seals, including inflatable seals, for diverse industrial applications. They provide quality sealing solutions, with all products proudly made in the USA.

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Flexaseal Engineered Seals and Systems, LLC.

Williston, VT

Based in Williston, VT, Flexaseal Engineered Seals and Systems, LLC. manufactures high-quality mechanical seals and engineered seal support systems. They serve demanding industries like oil & gas, chemical processing, power generation, and pharmaceuticals. With U.S.-based manufacturing, Flexaseal focuses on maximizing uptime, reliability, and performance for rotating equipment.

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Gasket Engineering

Kansas City, MO

Based in Kansas City, MO, Gasket Engineering manufactures custom gaskets and seals for diverse industries like aerospace, medical, wind energy, and electronics. The ISO 9001:2015 certified company utilizes advanced die-cutting, laser cutting, and prototyping capabilities to convert various raw materials into precise shapes and dimensions.

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Gasket Service Inc.

Odessa, TX

Gasket Service Inc. manufactures a variety of custom seals, including ring joint, firetube, neoprene, and Viton gaskets. The company provides specialized sealing solutions for industrial and commercial applications.

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Gasket Specialties, Inc.

Rancho Cucamonga, CA

Based in Rancho Cucamonga, CA, Gasket Specialties, Inc. has manufactured and distributed industrial gaskets for OEM and MRO operations since 1925. They utilize laser, flash, waterjet, die, lathe, and kiss cutting processes for various gasket materials. The company is ISO 9001:2015 & AS9100 Certified.

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Great Lakes Industrial

Milwaukee, WI

Great Lakes Industrial, based in Milwaukee, WI, specializes in innovative engineering and manufacturing of custom sealing solutions. The company offers value-added services such as kitting, packaging, and inventory management, delivering top-tier sealing solutions to OEMs globally. They focus on streamlining operations and reducing costs for businesses.

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HydraPak Seals, Inc

HydraPak Seals manufactures custom hydraulic and pneumatic seals, including O-rings and gaskets. The company produces solutions using advanced machinery and materials like Urethane, Viton, and Nitrile. They offer rapid delivery and serve diverse industries, from heavy industrial to medical applications.

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International Silicone Technologies

Santa Fe Springs, CA

International Silicone Technologies (InterSil) engineers and manufactures custom silicone compounds and products, including fluorosilicone, food grade, high temp, and silicone sheets. Based in Santa Fe Springs, CA, they provide US-made standard and custom silicone products for diverse industrial needs.

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Kirkhill

Brea, CA

Kirkhill manufactures highly engineered molded and extruded elastomer seals primarily for aerospace, defense, and military applications. Their product range includes fireproof, aerodynamic, door and hatch, inflatable canopy, and custom molded seals. The company utilizes extensive material formulation and design engineering expertise for tailored solutions.

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Lufkin Rubber & Gasket Co.

Lufkin, TX

Based in Lufkin, TX, Lufkin Rubber & Gasket Co. has fabricated and distributed industrial rubber products since 1978. The company specializes in manufacturing diverse sealing solutions, including all types of gaskets, rod and sheet packing, and expansion joints. They provide custom gasket making for various industries.

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McGaskets

Humble, TX

Based in Humble, TX, McGaskets specializes in custom-engineered gaskets and PTFE components. The company serves demanding industrial markets, including oil & gas, petrochemical, and energy sectors. They focus on delivering quality, speed, and reliability in their manufacturing processes for critical sealing solutions.

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Media Valve Co., Inc.

Fort Worth, TX

Media Valve Co. Inc. based in Fort Worth, TX, specializes in custom elastomer molding, offering mold making and parts production via transfer or compression molding. They manufacture a range of industrial products including gaskets, envelope gaskets, reinforcing rings, bladders, rollers, and various butterfly valves.

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Mega Precision O-Rings

Torrance, CA

Based in Torrance, CA, Mega Precision O-Rings is a family-owned USA manufacturer with over 42 years of experience. They specialize in custom O-rings, washers, and gaskets, emphasizing high precision for static and dynamic applications. Serving aerospace, agriculture, and leisure industries, they provide custom-made sealing solutions.

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Mid-Atlantic Rubber

Mid-Atlantic Rubber manufactures and supplies industrial rubber products, including a variety of seals, grommets, bushings, bumpers, and extrusions. The company also provides engineered solutions for vibration, shock, and general sealing problems. They serve industrial customers with diverse rubber product needs.

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Moss Seal Company

Houston, TX

Based in Houston, TX, Moss Seal Company offers engineered sealing solutions, precision machining, and fluid sealing components. They provide in-house manufacturing, design-to-delivery support, and value-added services for OEMs and industrial buyers in oil, gas, aerospace, and hydraulics.

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MSO Industries

Houston, TX

MSO Industries, based in Houston, TX, is a manufacturer and supplier of high-quality custom rubber gaskets, mechanical seals, and O-rings. Since 1984, they have provided innovative seal solutions to enhance operational efficiency across various industries, including oil and gas.

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MSP Seals, Inc.

Greenfield, IN

MSP Seals, Inc. provides engineered and molded seals, custom hoses, and fittings from its Greenfield, IN location. Offerings include O-rings, hydraulic, pneumatic, and PTFE seals, utilizing various materials like NBR, FKM, and EPDM. The company serves automotive, medical, and agricultural industries and holds ISO 9001 and 14001 certifications.

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North American Seal & Supply

Valley View, OH

North American Seal & Supply, based in Valley View, OH, manufactures custom gaskets and precision-cut sealing products using in-house capabilities. The company provides tailored sealing solutions for industrial applications. They also distribute a comprehensive range of O-rings, hydraulic, pneumatic, oil, and mechanical seals.

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O-Rings West, Inc.

Lynnwood, WA

Based in Lynnwood, WA, O-Rings West, Inc. supplies O-rings and custom molded rubber products. Established in 1996, the company features a large inventory of standard and custom O-rings, offering custom-sized and molded rubber parts with low tooling costs. They serve diverse industries including aerospace, military, medical, and automotive.

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Pacific States Felt & Mfg. Co., Inc.

Hayward, CA

Pacific States Felt & Mfg. Co. Inc. manufactures custom seals, gaskets, washers, and O-rings. Based in Hayward, CA, the company specializes in die cutting, custom rubber extrusions, and molding services. Since the early 1920s, they have provided tailored sealing solutions for industrial and commercial applications.

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PacSeal Hydraulics

Based in southern California, PacSeal Hydraulics manufactures ShearFlo® metal-to-metal sealing technology. With over 30 years of experience, the company develops and produces advanced, robust sealing solutions. It provides high-performance seals for various industrial applications, focusing on proprietary sealing mechanisms.

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Polymer Concepts Technologies, Inc.

Apple Valley, CA

Based in Apple Valley, CA, Polymer Concepts Technologies, Inc. specializes in manufacturing advanced industrial seals and highly-engineered thermoplastic components. They offer custom sealing solutions for critical service applications, utilizing high-performance designs. The company holds ISO 9001:2015 certification and ITAR registration.

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Precision Associates, Inc.

Minneapolis, MN

Based in Minneapolis, MN, Precision Associates, Inc. manufactures custom rubber seals and other rubber products. They produce a range of sealing solutions including O-rings, X-rings, U-cups, gaskets, and rod wipers for diverse markets.

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Precision Seals, Inc.

Fultondale, AL

Based in Fultondale, AL, Precision Seals, Inc. provides a wide range of hydraulic and pneumatic seal components. With over 30 years of experience, the company offers poly packs, wipers, o-rings, piston seals, and rod seals in various materials like Polyurethane, Fluorocarbon, and Teflon, available in standard and metric sizes.

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PTFE Industries

Houston, TX

Based in Houston, TX, PTFE Industries is an ISO 9001:2015 certified manufacturer of custom PTFE and Teflon™ products. They employ CNC machining, skiving, extrusion, and molding techniques to produce parts, films, rods, and sheets for diverse applications. The company specializes in innovative sealing solutions and precision-tailored components.

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RD Rubber Technology Corp.

Santa Fe Springs, CA

RD Rubber Technology Corp. based in Santa Fe Springs, CA, specializes in custom rubber molding and aerospace rubber seals for extreme conditions. They offer various molding types, including compression, injection, and cleanroom, along with rubber-to-metal bonding for aerospace, defense, and medical device industries.

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Robinson Rubber Products Company, Inc.

Minneapolis, MN

Based in Minneapolis, MN, Robinson Rubber Products Company, Inc. is an ISO 9001:2015 certified custom molding manufacturer. They specialize in elastomeric and thermoplastic components and assemblies, offering design assistance, material formulation, and value-add services like assembly and packaging for diverse industries.

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SantopSeal

SantopSeal, based in Pittsburgh, PA, specializes as a custom manufacturer of EPDM and thermoplastic rubber seals, gaskets, O-rings, and tubing. They provide custom profile extrusions, including FDA-grade seals ensuring safety in food processing operations. The company also supplies Santoprene™ TPV rubber sheets.

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SCE Gaskets

Mount Pleasant, TN

Based in Mount Pleasant, TN, SCE Gaskets specializes in the precision manufacturing of high-performance engine gasket solutions. The company provides a range of gasket products designed for demanding automotive and engine applications, serving customers with engineered sealing solutions.

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Seal Company

Seal Company specializes in custom engineered sealing solutions, providing precision gaskets, seals, and machined components. The company supports OEMs and industrial manufacturers, partnering with engineering, maintenance, and procurement teams for industrial performance needs.

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Sealing Devices

Depew, NY

Based in Depew, NY, Sealing Devices manufactures and distributes a variety of seals and gaskets, including O-rings and custom molded rubber parts made in the US. The company also offers EMI shielding and thermal management materials, serving industrial, aerospace, military, and fluid power sectors.

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Seal-Jet of Ohio, Inc.

Cincinnati, OH

Based in Cincinnati, OH, Seal-Jet of Ohio, Inc. manufactures high-quality hydraulic and pneumatic seals. They offer American Standard, Metric, and custom designs, specializing in top-quality seals and specialty rubber and plastic components. The company utilizes a comprehensive range of materials, including Urethane, Nitrile, Viton, EPDM, and PTFE.

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Seal Tech

Yorba Linda, CA

Seal Tech manufactures high-quality O-rings and custom molded rubber seals. With over 70 million O-rings in stock, the company provides immediate shipments to various industries, including automotive, medical products, hydraulic fittings, and semi-conductors. They work closely with distributors, purchasing agents, and engineers.

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SFC Seals

Conroe, TX

Based in Conroe, TX, SFC Seals manufactures customized, high-performance spring energized seals from materials like PEEK, UHMW, and PTFE. They offer diverse seal types, including rotary lip seals. Certified to AS9100 and ISO 9001, SFC Seals provides solutions for critical industries such as Oil & Gas and Aerospace/Defense applications.

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APG

Houston, TX

Based in Houston, TX, APG manufactures and distributes quality o-rings for diverse industrial applications. The company adheres to AS 568A, DIN ISO 3601, and JIS Standard, providing precision sealing solutions for industrial couplings, glass, and plastic components.

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SSP Seals

Hackettstown, NJ

Based in Hackettstown, NJ, SSP Seals specializes in designing and manufacturing custom industrial seals, parts, and gaskets for mechanical and technical equipment. They serve OEMs, offering machined components with quick lead times and welcoming prototypes. Their FDA-approved sealing solutions cater to pharmaceutical, filling equipment, and lab applications.

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Stein Seal Company

Based in Kulpsville, PA, Stein Seal Company manufactures precision custom sealing solutions for critical applications. They provide circumferential carbon, face, bushing, and bellows seals, leveraging over 65 years of experience. Services include OEM design, reverse engineering, machining, and testing, serving aerospace, nuclear, industrial, and marine markets.

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Stockton Rubber Mfg. Co., Inc.

Linden, CA

Based in Linden, CA, Stockton Rubber Mfg. Co. Inc. manufactures custom and proprietary rubber products. Specializing in compression and transfer molding and handbuilt techniques, they serve industrial, mining, construction, transportation, and agriculture sectors. The company also provides mold and tooling design services, leveraging 30+ years of experience.

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Stockwell Elastomerics

Based in Philadelphia, PA, Stockwell Elastomerics manufactures custom silicone gaskets, seals, cushioning pads, and elastomeric components. The company specializes in high-performance material solutions, providing engineering support and prototyping for demanding gasketing, sealing, and cushioning applications, particularly within the technology equipment sector.

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System Seals Inc

Cleveland, OH

Based in Cleveland, OH, System Seals Inc. is an engineering-based company specializing in ultra-high-performance seals for mission-critical applications. They use proprietary design tools to optimize seal performance for OEMs. Services include custom seal design-to-value, manufacturing oversight, quality control, global logistics, and comprehensive supply chain management.

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Texas Precision Polymers, Inc.

Conroe, TX

Based in Conroe, TX, Texas Precision Polymers, Inc. specializes in engineering and precision machining of custom spring-energized polymer seal and wear components. The company provides high-performance sealing solutions designed to meet exact specifications for critical industrial applications, focusing on advanced polymer solutions for industrial use.

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TF Seals USA

Houston, TX

Based in Houston, TX, TF Seals USA specializes in custom mechanical seal engineering design and manufacturing. They provide comprehensive sealing solutions, including cartridge seals designed to API/ANSI/DIN standards. The company also offers advanced seal face technology, seal support systems, packing, and gaskets to meet diverse industrial requirements.

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United Precision Corporation

Washougal, WA

Based in Washougal, WA, United Precision Corporation specializes in manufacturing high-quality, built-to-specification parts for defense and aerospace industries. They produce precision machined seals, engineered by a qualified team. The company operates under AS9100 and ISO 9001 Quality Management System standards, ensuring durable and reliable products.

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American Seal & Packing

Santa Ana, CA

Based in Santa Ana, CA, American Seal & Packing supplies industrial mechanical seals, hydraulic seals, O-rings, and various packing materials. The company specializes in manufacturing custom cut gaskets in-house using a die-less gasket cutting machine. They offer solutions for pumps, valves, and pipe flange applications.

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US Seal Mfg

US Seal Mfg specializes in manufacturing high-quality mechanical seals, serving a significant portion of the replacement seal market. They offer diverse material combinations including elastomers, metallurgy, and sealing faces, designed to enhance pump efficiency. The company provides solutions for various industrial and commercial applications, notably including the pool and spa sector.

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Valley Seal Company

Woodland Hills, CA

Based in Woodland Hills, CA, Valley Seal Company provides precision-engineered sealing solutions for aerospace and industrial applications. The company specializes in delivering high-quality seals designed for demanding environments, serving a range of B2B clients with tailored sealing products.

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Accurate Rubber Corp.

Yorkville, IL

Based in Yorkville, IL, Accurate Rubber Corp. is a manufacturer of custom silicone rubber products. The company specializes in producing extruded silicone gaskets and seals, silicone tubing, O-rings, and strips. They provide precise and durable sealing solutions for various industrial applications, all manufactured in the USA.

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Datwyler Sealing Solutions

Rochester, NY

Datwyler Sealing Solutions designs and manufactures high-precision, customized sealing components for diverse industries including automotive, healthcare, and infrastructure. Leveraging advanced materials and engineering expertise, the company provides durable and reliable seals, O-rings, and custom molded parts. They operate manufacturing facilities across the United States.

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GMORS

Newark, CA

GMORS Aerospace Engineering Seals Group, based in Newark, CA, manufactures rubber components and total sealing solutions. They provide specialized seals for aerospace engine, fuel, flight control, and braking systems. GMORS also serves automotive, semi-conductor, medical, and drinking water industries, offering design to manufacturing services.

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Meteor Sealing Systems LLC

Dover, OH

Based in Dover, OH, Meteor Sealing Systems LLC manufactures high-performance, tailor-made sealing systems and rubber profiles. They specialize in complex sealing solutions for the automotive and industrial sectors, utilizing comprehensive manufacturing processes from compounding to finishing with various elastomers.

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O-Rings, Inc.

Los Angeles, CA

O-Rings, Inc. is an American business established in 1958, specializing in the supply of quality O-Rings. The company offers a full range of US-made specification O-Rings, serving a diverse base of global customers across various markets.

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Roxtec Inc. US

Roxtec Inc. US develops and manufactures flexible sealing solutions for cable and pipe penetrations. They offer modular-based transits, knock-out frames, and cabinet seals designed for diverse applications, including underground entries, fire protection, and harsh environments. Their products ensure superior sealing for multiple industrial and commercial demands.

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Spec Rubber

Birmingham, AL

Based in Birmingham, AL, Spec Rubber is a rubber component manufacturer established in 1968. They deliver custom solutions with high-quality, NSF-61 certified products, reflecting American grit and quality. The company specializes in producing diverse rubber components for various industrial applications.

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AccroSeal

Vicksburg, MI

Based in Vicksburg, MI, AccroSeal specializes in manufacturing custom plastic and polymer components, including seals, bearings, and gaskets. They utilize unique Accrolon® custom compounds and advanced precision machining and compression molding capabilities to craft innovative solutions for diverse industrial applications.

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Advanced Sealing Inc.

West Valley City, UT

Based in West Valley City, UT, Advanced Sealing Inc. manufactures a range of sealing products. Their offerings include Spiral Wound, Cam-Profile, and Exchanger Gaskets, along with fasteners, designed to ensure safety and reliability for various industrial applications.

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AESSEAL

Rockford, TN

Based in Rockford, TN, AESSEAL specializes in the manufacturing of mechanical seals and offers comprehensive seal repair services. The company utilizes full in-house machining capabilities to produce a variety of high-quality industrial sealing solutions for diverse applications.

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Apple Rubber

Lancaster, NY

Apple Rubber, based in Lancaster, NY, is an ISO 9001 certified designer and manufacturer of standard and custom rubber seals, o-rings, and molded sealing devices. The company creates made-to-order parts, addressing challenging sealing problems for diverse industrial sectors.

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Bal Seal Engineering

Foothill Ranch, CA

Bal Seal Engineering, based in Foothill Ranch, CA, specializes in manufacturing custom spring-energized PTFE seals, canted coil springs, and electrical connectors. They provide high-performance sealing solutions for critical applications within aerospace, medical, and industrial sectors. The company leverages advanced polymer materials and canted coil spring technology for superior sealing performance and extended service life.

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Champion Manufacturing

Birmingham, AL

Based in Birmingham, AL, Champion Manufacturing, a subsidiary of Birmingham Fastener, delivers American-made gaskets. The company produces high-quality seals from its Magnolia, Texas, manufacturing facility, offering custom fabrication capabilities to meet various project needs.

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Blaylock Gasket & Packing

Fort Worth, TX

Based in Fort Worth, TX, Blaylock Gasket & Packing is a family-owned business specializing in the manufacturing of custom gaskets for over 40 years. They are ISO 9001 certified, serving diverse sectors including oil, gas, and pharmaceuticals.

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California Gasket & Rubber

Orange, CA

Based in Orange, CA, California Gasket & Rubber custom manufactures industrial sealing devices. Their Gasket Division specializes in cutting gaskets of various sizes, shapes, and materials. The company also provides rubber, metal, and hose manufacturing services, serving industrial clients since 1942.

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A.W. Chesterton Company

A.W. Chesterton Company is a US-based manufacturer specializing in high-performance mechanical seals and advanced sealing solutions. These products are engineered to reduce equipment downtime, enhance reliability, and extend the operational life of industrial pumps and other rotating equipment across various demanding applications.

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Performance Sealing, Inc.

Performance Sealing, Inc. is a seal manufacturer that leverages advanced material technology and innovative seal design to optimize sealing performance. The company utilizes high-performance engineered polymers to create custom sealing solutions for industrial and commercial clients, ensuring reliability and efficiency.

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Cometic Gasket

Concord, OH

Cometic Gasket manufactures a vast range of high-performance gaskets and engine sealing solutions. Based in Concord, OH, the company serves diverse applications across Automotive, Powersport, Marine, OEM, Remanufactured Engine, Agricultural, and Industrial sectors. They specialize in creating custom sealing solutions.

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Darcoid Rubber Company

Oakland, CA

Based in Oakland, CA, Darcoid Rubber Company provides advanced seal technical solutions and comprehensive seal supply programs. The company offers seal design, specification support, test bench capabilities, and fast prototyping, ensuring zero defect quality management. They serve diverse markets including aerospace, bio pharma, electric mobility, and life sciences.

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California Sealing Devices

Grand Rapids, MI

Based in Grand Rapids, MI, California Sealing Devices manufactures and supplies extruded rubber products. The company specializes in creating high-quality sealing solutions for various industrial and commercial applications, focusing on precision and durability for custom rubber components.

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Garlock

Garlock provides innovative industrial sealing solutions, specializing in semiconductor manufacturing. They address complex sealing challenges in ultrapure water, central vacuum, and chemical distribution, ensuring safety, product quality, and adherence to environmental regulations with efficient products.

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Hennig Gasket & Seals

Chicago, IL

Hennig Gasket & Seals, based in Chicago, IL, manufactures custom gaskets and seals in various sizes, shapes, and configurations. They specialize in a wide range of materials, including EPDM, PTFE, Silicone, Viton, and Graphite, serving diverse industrial applications with precision-engineered sealing solutions.

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Lamons

Houston, TX

Based in Houston, TX, Lamons manufactures custom gaskets, bolts, and seals, offering a comprehensive range of safety sealing and attachment solutions. The company handles both high-volume standard components and customized engineered solutions, providing 24/7 support for diverse industry needs.

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Lone Star Gasket

Odessa, TX

Based in Odessa, TX, Lone Star Gasket provides custom gaskets, O-rings, and molded parts. They offer waterjet cutting services for gaskets and flange installation kits. The company serves clients primarily in the oilfield and agriculture industries across West Texas and Southeast New Mexico.

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Marco Rubber

Seabrook, NH

Based in Seabrook, NH, Marco Rubber operates a global production network, providing a vast inventory of O-rings and seals. The company facilitates quick delivery and service through a simple online ordering system, serving diverse industrial applications with high-quality sealing solutions.

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Mustang Seal Solutions

Houston, TX

Based in Houston, TX, Mustang Seal Solutions is an industrial seal manufacturer and distributor. The company provides custom rubber molding, precision machining, and kitting services. They specialize in creating high-quality, application-specific seals and components for diverse industrial clients.

Phone available

Performance Seals

Louisville, KY

Based in Louisville, KY, Performance Seals specializes in providing high-quality, custom-engineered sealing solutions. The company designs and manufactures seals to meet the rigorous demands of various industries, ensuring precision and reliability for diverse industrial and commercial applications.

Phone available

PGC

Edina, MN

Based in Edina, MN, PGC manufactures custom gaskets and seals for a wide range of industrial applications. The company also produces adhesives and other essential components, supplying tailored solutions to various industries globally. PGC leverages its expertise to deliver high-quality, engineered products.

Phone available

Pride Seals, Inc.

Cincinnati, OH

Based in Cincinnati, OH, Pride Seals, Inc. specializes as sealing specialists, providing high-quality industrial seals. The company focuses on manufacturing efficient and safe products, continually sourcing innovations to meet customer needs. They are committed to delivering reliable, expertly crafted sealing solutions.

Phone available

Performance Sealing Inc

Irvine, CA

Based in Irvine, CA, Performance Sealing Inc (PSI) designs and manufactures high-performance engineered polymer seals, sealing systems, and components. They specialize in custom, high-pressure sealing solutions for demanding applications across diverse markets, leveraging expertise in polymer materials and mechanical seal design.

Phone available

Real Seal

Escondido, CA

Based in Escondido, CA, Real Seal manufactures and distributes performance-oriented rubber and plastic seal products, including O-rings and mechanical components. With expertise in polyurethane materials, they assist with design challenges and formulate custom materials. The company serves numerous industries nationally and internationally.

Phone available

Seal & Design, Inc.

Rochester, NY

Based in Rochester, NY, Seal & Design, Inc. is a dedicated manufacturer specializing in high-quality seals, gaskets, and O-ring solutions. The company provides essential sealing products for various industrial and commercial applications, delivering custom and standard components to meet diverse client needs.

Phone available

SEPCO, Inc.

Alabaster, AL

Based in Alabaster, AL, SEPCO, Inc. is a manufacturer of mechanical seals. The company provides effective and durable sealing solutions designed to reduce operating costs and improve system reliability for industrial applications.

Phone available

Sila Seal

Indianapolis, IN

Based in Indianapolis, IN, Sila Seal manufactures and supplies professional-grade silicone caulk and sealants. The company specializes in producing 100% silicone RTVs, proudly made in the USA. Sila Seal, owned by Meyer Plastics, also provides accessories and various Weld-On adhesive products.

Phone available

Soudal USA

Elizabethtown, KY

Soudal USA manufactures high-quality industrial-grade silicone sealants designed for creating durable, water-tight seals. Their Dynatex® brand products cure into tough, flexible silicone rubber, suitable for professional and consumer applications. Based in Elizabethtown, KY, the company provides diverse sealing solutions.

Phone available

Sur-Seal

Sur-Seal provides custom manufacturing and design solutions for engineered components and materials. They specialize in precise die-cut, molded, formed, and extruded products to suit various manufacturing needs, regardless of shape, size, or material. The company is AS9100- and ISO9001-certified.

Phone available

The O-Ring Store LLC

This U.S.-based, ISO 9001:2015 certified company specializes in manufacturing and supplying a wide range of O-rings, hydraulic seals, oil seals, and custom sealing solutions. They stock millions of standard, metric, vulcanized, and engineered O-rings. Serving manufacturers, distributors, and maintenance teams, they offer material selection, sizing, and custom seal design.

Phone available

Utex Industries Inc

Houston, TX

Based in Houston, TX, Utex Industries Inc specializes in specialty seal manufacturing and pump packing. The company provides engineered fluid control solutions for critical systems across various sectors, including energy, transportation, mining, water works, and marine industries.

Phone available

West Coast Gasket

Brea, CA

Based in Brea, CA, West Coast Gasket specializes in the manufacture of all types of industrial gaskets. They produce molded and extruded products, including lathe cut washers and metal stampings, serving various industrial clients.

Phone available

World Sealing Corporation

Odessa, TX

Based in Odessa, TX, World Sealing Corporation specializes in providing high-quality gaskets and mechanical seals. They offer a comprehensive range of custom sealing solutions engineered for optimal performance in diverse industrial applications, including oil and gas, manufacturing, and HVAC.

Phone available

Wyatt Seal

Charlotte, NC

Wyatt Seal, based in Charlotte, NC, specializes in custom sealing solutions and hydraulic gaskets. With over 50 years of experience, the company provides in-house manufacturing for specialized requirements. They also distribute high-performance sealing products, serving engineers and industrial applications with a focus on timely delivery.

Phone available

Konark Silicones

Anaheim, CA

Based in Anaheim, CA, Konark Silicones manufactures premium silicone parts and offers advanced molding solutions. They specialize in engineering silicone part design, material selection, and custom mold development. Utilizing both silicone injection and compression molding, the company produces high-quality components for various industries.

No contact on file

Technetics Group

Technetics Group engineers custom sealing, component, and sub-system technology products. They provide highly engineered solutions for critical applications in demanding environments, leveraging material expertise. Serving aerospace, chemical processing, nuclear, pharmaceutical, industrial turbines, and other demanding sectors.

No contact on file

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How to Choose a Company

  • Verify the manufacturer's experience with your specific operating environment. Ask for case studies involving similar temperature ranges, chemical compatibility, and pressure requirements to ensure their elastomer selection is truly optimized for your application, not just a standard recommendation.
  • Assess their tooling capabilities. A manufacturer with in-house tool design and fabrication can offer faster prototype turnaround and greater flexibility for design revisions, particularly for complex custom molded seals requiring precise flash control and tight geometric tolerances.
  • For critical applications (e.g., aerospace, medical, automotive), demand specific certifications like AS9100, IATF 16949, or USP Class VI. Don't settle for 'ISO compliant' if a specific industry standard is mandated; ensure they hold the actual certification and can provide documentation.
  • Investigate their quality control processes for incoming materials and finished goods. Ask about their methods for measuring durometer, compression set, and dimensional accuracy, and confirm their batch traceability procedures are robust enough for your needs.
  • Beware of suppliers who consistently quote significantly lower prices without providing detailed technical justifications for material or process choices. This can be a red flag indicating a willingness to substitute materials, cut corners on tooling, or overlook critical performance specifications, leading to long-term reliability issues.
  • Understand their minimum order quantities (MOQs) for custom compounds vs. standard elastomers. Some manufacturers excel at high-volume production but struggle with prototyping or short runs of specialized materials, impacting your development timelines and flexibility.

Frequently Asked Questions

How critical is the compound cure date or shelf life for seal longevity?

Extremely critical, particularly for elastomers like Viton (FKM) or certain silicones. Over time, uncured elastomers can degrade, impacting compression set resistance, flexibility, and overall performance. Always inquire about the manufacturer's material control processes and ensure seals are supplied with appropriate cure dates and shelf life information, especially for parts that may sit in inventory before use.

What's the key difference between dynamic and static seals in terms of manufacturing requirements?

Dynamic seals, which experience relative motion between mating surfaces, demand far more rigorous specifications for surface finish, friction properties, and extrusion gap resistance. Manufacturers need specialized tooling to minimize flash and ensure precise dimensional stability to prevent premature wear and leakage, whereas static seals primarily focus on maintaining sufficient contact pressure and chemical resistance.

When should I consider a custom elastomer compound instead of an off-the-shelf material for my seal application?

You should consider a custom compound when no standard material perfectly meets your application's unique combination of chemical compatibility, temperature range, pressure, and mechanical properties (like specific durometer or low compression set). A custom compound allows for precise tailoring of additives, fillers, and polymer blends to achieve optimal performance and lifespan, but it typically comes with higher tooling costs and MOQs.

What impact does surface finish on mating hardware have on seal performance?

A significant impact. For dynamic seals, an overly rough surface finish can abrade the seal material, leading to premature wear and leakage, while an excessively smooth finish might not allow for proper lubrication film formation. For static seals, surface irregularities can create leak paths. Always specify the required Ra (roughness average) for mating hardware in your design to ensure optimal seal performance and longevity, and confirm the seal manufacturer understands these requirements.

How can I avoid issues with 'flash' and ensure tight dimensional tolerances on complex molded seals?

To minimize flash and achieve tight tolerances, select a manufacturer with advanced tooling design capabilities, including simulation software for mold flow analysis. Request to see their internal quality control data on recent projects with similar complexity, specifically focusing on their processes for managing mold wear, ensuring proper tool closure, and conducting 100% visual inspection or automated optical inspection (AOI) for critical dimensions and flash.

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