Dual Durometer Trim Seals by FlexSeals
Engineered for Performance, Built for Reliability
Secure Grip Meets Flexible Sealing—Precision-Engineered in the USA
FlexSeals (FS USA) manufactures dual durometer trim seals designed for applications where both edge retention and flexible sealing are critical. These high-performance, co-extruded rubber seal profiles combine a rigid base for structural grip with a soft, compliant sealing element—delivering long-lasting protection against environmental stress, vibration, and wear.
Commonly used in transportation, automotive, industrial equipment, and off-road vehicle manufacturing, our USA-made rubber seals and edge trims are engineered for reliability, repeatability, and rugged field performance.
FS USA
How Dual Durometer Seals Work
Each of our dual durometer trim seal features two integrated materials:
- Firm Base (Carrier): Grips tightly onto metal, fiberglass, or composite edges—often supported by an optional metal insert for additional holding strength
- Soft Bulb or Flap: Compresses against mating surfaces to form a tight seal, blocking out dust, moisture, noise, and vibration
The dual-layer design of our co-extruded rubber trim seals is ideal for reducing NVH (noise, vibration, harshness), sealing uneven gaps, and protecting sensitive components from thermal cycling, road shock, and outdoor exposure.
Built to Withstand Harsh Conditions
FlexSeals uses durable, weather-resistant materials to ensure your dual durometer trim seals perform reliably across a wide range of operating environments.
Available Materials:
- EPDM – Excellent UV, ozone, and temperature resistance
- TPV and PVC – Flexible, cost-effective materials with long service life
- Silicone and Custom Blends – For high-heat, chemical, or specialty applications
With consistent compression, long-term elasticity, and resistance to fatigue, our seals outperform off-the-shelf alternatives—especially in environments with repeated motion or harsh exposure.
Tailored for Performance and Production
We understand that inconsistent fit, early seal fatigue, and complex geometries can disrupt your production or reduce product life span. That’s why FlexSeals offers custom dual durometer seal profiles designed to match your precise requirements.
Customization Options:
- Unique profile shapes for specific edge thicknesses and radii
- Optional metal carrier for enhanced grip and form stability
- 3M adhesive backing for peel-and-stick installation
- Flocking and anti-friction coatings for reduced wear
- Molded corners and vulcanized splicing for complex assemblies
- Push-pin insertion and pre-assembled options for easier installation
We work closely with OEMs, Tier 1 suppliers, and equipment manufacturers to ensure seamless integration into your production line—with rapid prototyping, scalable production, and reliable logistics.
Key Features and Benefits of FlexSeals Dual Durometer Seals
- Co-extruded rigid + flexible materials for secure fit and optimal sealing
- Available in EPDM, TPV, PVC, silicone, and more
- Optional metal carriers for edge retention in high-vibration environments
- UV-, ozone-, and temperature-resistant materials for outdoor and engine bay use
- Full range of finishing services for installation ease and visual consistency
- Ideal for doors, hatches, panels, engine compartments, and enclosures
- Made in the USA with fast lead times and consistent quality
Let’s Design the Perfect Seal—Together
Whether you need to upgrade an existing sealing system or design a new custom profile, FlexSeals delivers engineered, American-made dual durometer trim seals that meet your durability, production, and performance goals.
Contact us today to request a quote or to collaborate with our engineering team for a custom solution.

