Custom Automotive Seals by FlexSeals

Engineered for Performance, Built for Reliability

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Precision Sealing for OEM and Aftermarket Applications

FS USA (FlexSeals) is a trusted U.S. manufacturer of high-performance custom automotive seals engineered to meet the rigorous demands of today’s vehicles. From OEM production lines to aftermarket solutions, our precision sealing products deliver optimal protection against moisture, dust, noise, and vibration while enhancing fit, finish, and overall performance.

Whether you’re designing for door frames, trunks, hoods, glass runs, or engine bay enclosures, FlexSeals offers tailored solutions to meet your exact specifications with full material flexibility and application-driven design.

FS USA

Custom Sealing Solutions Built for Automotive Performance
At FlexSeals, we specialize in U.S.-based manufacturing of precision-engineered seals that meet the quality and performance standards required by leading automotive manufacturers. From glass run channels to engine gaskets, every seal is tooled, tested, and made to deliver consistent, high-quality results.
Our American-made components improve vehicle durability, passenger comfort, and system efficiency across a wide range of applications.

Manufactured Sealing Components for a Full Range of Automotive Applications
Our American manufacturing facilities produce a wide range of custom sealing products, including:
  • Door and Window Seals – Manufactured for airtight and watertight performance, reducing noise and improving cabin comfort.
  • Engine Gaskets – Precision-molded to handle high pressures and temperatures in critical engine areas.
  • Fuel System Seals – Manufactured for chemical resistance and leak prevention across fuel system components.
  • Transmission Seals – Designed for long-term durability and resistance to wear in demanding conditions.
  • Weatherstripping – Protecting vehicle interiors from dust, moisture, and road noise.
Every precision sealing component for the automotive industry that we manufacture is built to exact specifications, ensuring smooth integration into your automotive assemblies.
Material Options and Mounting Styles

We offer advanced precision sealing material options to meet environmental, chemical, and thermal demands:

  • EPDM – Excellent weather and ozone resistance
  • Silicone – Withstands high temperatures in underhood applications
  • TPE and PVC – Lightweight, flexible, and cost-effective
  • Dual-durometer blends – Precision-fit sealing performance

Mounting options include:

  • Push-on edge trim with metal carriers
  • Clip-on, slide-in, or adhesive-backed profiles
  • Co-extrusions with integrated fasteners or tapes

Designed for Demanding Conditions
Automotive seals face constant movement, temperature shifts, and chemical exposure. We solve these challenges with advanced materials and vertically integrated manufacturing, enabling tight quality control, fast iteration, and excellent durability.

Custom Manufacturing for Automotive Innovation
From prototyping to full-scale production, our in-house engineering and production teams collaborate directly with clients to create solutions that meet precise dimensional, functional, and regulatory requirements. We also offer value-added enhancements like:
  • Vulcanized and Molded corners for continuous seals
  • Flocked or coated surfaces for low friction
  • Custom color-matching and logo embossing
  • EMI/RFI shielding options for electronic systems

     

    Why Automotive Manufacturers Trust FlexSeals:
    • Custom-Engineered, American-Made Products
    • Material Expertise for Harsh Environments
    • Durable, Performance-Driven Designs
    • Tight Quality Control and Scalable Manufacturing
    • Responsive, Collaborative Development Process

    Partner with FlexSeals to manufacture precision sealing solutions that meet your automotive product goals with the precision, reliability, and service that only a U.S.-based manufacturing partner can provide.

    Let’s Seal It Right

    From door weatherstrips to engine gaskets, FlexSeals delivers precision sealing solutions engineered for the automotive industry that you can count on. Contact us today to request a quote or to speak with our team about your next project.

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