ESI Tailgate Seal for 2020+ Silverado 1500 & Sierra 1500 — EPDM Taper Seal with 3M Adhesive, Weatherproof

ESI Ultimate Tailgate Seal is a precision-fit EPDM rubber gasket with 3M adhesive designed to stop dust and water from entering the bed of 2020 and newer Silverado 1500 and Sierra 1500 trucks.

If you run a truck bed cap or tonneau cover, gaps at the tailgate bottom and sidewalls can let in dirt, rain, and road spray. This ESI taper-style seal was engineered to fit the 2020+ Silverado 1500 and Sierra 1500 tailgate geometry, creating a continuous barrier that bonds to painted, textured, and spray-on bed liner surfaces. Manufacturing in the U.S.A., the seal uses durable automotive-grade EPDM rubber and proven 3M ST1200 adhesive for long-lasting adhesion when installed correctly.

How does this seal reduce water and dust intrusion?

The taper profile fills the common gap between the tailgate and truck bed sidewalls, redirecting splash and airborne particles away from the cargo area. Its flexible EPDM compresses to form a tight boundary yet remains resilient through temperature changes and repeated tailgate use.

• Full-length taper conforms to tailgate bottom and sidewalls
• EPDM rubber resists weathering, ozone, and UV exposure
• Creates a continuous barrier for tonneau covers and bed caps

What surfaces will the adhesive stick to and how durable is it?

ESI pairs the seal with 3M ST1200 double-sided tape to bond to a wide range of truck bed surfaces, including painted sheet metal, textured finishes and spray-on liners. The adhesive is formulated for automotive use and gains full bond strength when installed under the recommended conditions.

• Compatible with painted, textured, and spray-on bed liners
• Requires firm application pressure (approx. 25 lbs) to set adhesive
• Optimal bonding at 55°–104°F (13°–40°C) during installation

Is this the right ESI model for my Silverado or Sierra variant?

This specific taper seal is sized for 2020 and newer Silverado 1500 and Sierra 1500 models. ESI offers alternate part numbers for earlier model years, heavy-duty 2500/3500 trucks, Multi-Flex/MultiPro tailgates, and EV variants—so confirm your model year and tailgate style before ordering.

• Designed for 2020+ Silverado 1500 and Sierra 1500 tailgates
• Different ASINs available for older models, 2500/3500, Multi-Flex/MultiPro, and EVs
• Check vehicle year and tailgate type to ensure compatibility

How should I prepare and install the tailgate seal for best results?

Clean, dry surfaces and proper temperature make a big difference. Follow the included instructions carefully: surface prep, alignment, and firm pressure during application help the 3M tape form a reliable bond that resists peeling and separation over time.

• Clean tailgate area thoroughly and remove contaminants before application
• Install only when air and surface temperatures are between 55°–104°F (13°–40°C)
• Apply approximately 25 pounds of pressure along the seal to ensure adhesion

Who this is for: The ESI Ultimate Tailgate Seal is aimed at Silverado and Sierra 1500 owners (2020 and newer) who use bed caps or tonneau covers and need a durable, factory-friendly solution to reduce dust and water ingress. It suits vehicle owners who want a straightforward, made-in-USA sealing upgrade that adheres to painted and sprayed bed finishes and tolerates daily tailgate use.