Letu Automotive manufactures push-on trim seal products for a variety of markets like Agriculture, Construction, Rail & Freight,  Appliance, Automotive,  Electrical,  Marine from Hebei, China.

Push-on Trim Seals are also known as bulb trim seals because of the round shape at the top of the trim. Letu Automotive has the expertise to co-extrude double bulbs, add butyl to the trim, add slip coating, and use multiple materials and densities. Trim Seals come in various materials which include but not limited to: Dense and Sponge EPDM, vinyl and PVC. Trim seals typically have reinforced carriers using a flexible wire core or flexible segmented steel core.

Push-on Trim Seals are the product of choice for automotive, marine and transportation industries. These rubber seals are placed on the window, door or truck body to allow for water and weather resistance. But they’re ideal for virtually any application that needs a solid, reliable seal – from toolboxes to closet doors, boat hatches to storage containers. And when it comes to gripping power, our flexible wire and segmented steel cores are the strongest and most resilient in the industry.

Push-On Trim Seals offer a fast, easy way to weatherstrip and trim vehicle doors and windows. Install by simply pushing them over raw edges and flanges. Types of trim seals we offer:

  • Push-On Trim Seals – Dual Durometer Sponge and Solid Rubber Extrusions with Flexible Wire Core
  • Push-On Trim Seals – Dual Durometer EPDM Rubber Extrusions with a Flexible Segmented Steel Core
  • Push-On Trim Seals – Vinyl and Sponge Rubber with Flexible Segmented Steel Core
  • Push-On Trim Seals – double bulb trim seals and more.

Letu Automotive can manufacture all types of push-on trim seals, rubber edge trim seals with your samples or drawings. Please feel free to tell us your needs, our engineers can meet your strictest requirements.

Push-On Trim Seals Vinyl and Sponge Rubber with Flexible Segmented Steel Core

Push-On Trim Seals Dual Durometer Sponge and Solid Rubber Extrusions with Flexible Wire Core

Push-On Trim Seals Vinyl and Sponge Rubber with Flexible Segmented Steel Core

Push-On Trim Seals Material Data Sheet For Reference

Portion- Rubber
MATERIAL BLACK EPDM
HARDNESS 65-85 SHORE A
TENSILE STRENGTH (ASTM D2240) 7 MPA (min)
BRITTLE POINT (ASTM D746) -40°C
TEMPERATURE RANGE -40°C TO +120°C
AGED 70 HOURS @ 70°C
HARDNESS CHANGE (IRHD) +2
TENSILE CHANGE +13%
COMPRESSION SET (ASTM D395) 40% (MAX)
OZONE RESISTANCE (70 HOURS @ 50°C, 50 PPHM, 20% EXT) NO CRACKS
Portion- Sponge Rubber (Bulb)
MATERIAL BLACK EPDM SPONGE RUBBER
DENSITY 0.50-0.80G/CM3
BRITTLE POINT (ASTM D746) -40°C
OZONE RESISTANCE (70 HOURS @ 50°C, 50 PPHM, 50% EXT) NO CRACKS
WATER ABSORPTION (ASTM D1056) 22 HOURS @ 23°C 1-2% (MAX)
Product Property
COMPRESSION SET (ASTM D1056) 7 DAYS @ 70°C 50% (MAX)
STAIN OF RUBBER IN CONTACT WITH ORGANIC FINISH
MIGRATION STAIN SATISFACTORY
CONTACT STAIN SATISFACTORY
COLOUR FASTNESS (ASTM D750) SATISFACTORY