ESI Ultimate Tailgate Seal for Chevy Colorado & GMC Canyon — EPDM Taper Seal with 3M Adhesive, Weatherproof Dust & Water Barrier

ESI Ultimate Tailgate Seal with Taper Seal is a patented EPDM rubber gasket that seals the bottom and sides of the tailgate gap to block dust and water when you use a truck cap or tonneau cover.

If you use a bed cap or tonneau on a Chevy Colorado or GMC Canyon, the small gap around the tailgate can let in dust, rain, and road spray. The ESI Ultimate Tailgate Seal was engineered to plug that gap with an automotive-grade EPDM rubber profile and a high-bond 3M ST1200 adhesive backing. Designed and made in the USA, it installs along the tailgate perimeter to form a tight barrier without modifying the truck.

How does the ESI Tailgate Seal stop dust and water from entering the bed?

The seal creates a continuous, flexible barrier along the bottom and sidewalls of the tailgate that compresses against the tailgate edges and the bed opening. EPDM rubber resists compression set and channels moisture away, while the taper profile helps shed water and minimize dirt build-up.

• Patented taper seal geometry for improved sealing and water runoff
• EPDM material resists weathering and remains flexible over time
• 3M ST1200 adhesive provides a durable bond to various surfaces

Will the adhesive stick to my truck’s spray-in liner or painted surface?

Yes — the product uses automotive-grade 3M ST1200 double-sided tape engineered to adhere to painted metal, plastic trim, and textured spray-in bed liners. Proper surface preparation and temperature are essential to ensure the adhesive reaches full strength.

• Works with spray-on liners, painted finishes, and OEM surfaces
• Surface and air temperature should be between 55°–104°F (13°–40°C) for installation
• Requires firm pressure (about 25 lbs) during installation to bond correctly

How difficult is installation and what should I expect during the process?

Installation is a straightforward adhesive application but needs attention to detail. Follow the packaged or online instructions: clean and dry surfaces thoroughly, align the seal carefully, press along the length using steady pressure, and allow the adhesive to cure under recommended conditions.

• Clean and degrease the tailgate gap area before applying
• Install in the recommended temperature window for best adhesion
• Apply consistent pressure along the seal to ensure a uniform bond

Will this fit my vehicle and is it compatible with other accessories?

This version of the ESI Ultimate Tailgate Seal is made specifically to be compatible with Chevy Colorado and GMC Canyon models and their common tonneau or cap setups. If you have a different truck model, search the manufacturer’s ASIN reference or contact ESI for the correct application.

• Patented design tailored for Colorado and Canyon tailgates
• Works alongside tonneau covers and truck bed caps without modification
• For other trucks, refer to ASIN B00IPQWXZQ or consult ESI for fitment

Who this is for: The ESI Ultimate Tailgate Seal is for pickup owners who use a bed cap or tonneau cover and want to reduce dust, water, and road spray entering the cargo area. It’s ideal if you prefer a no-drill, reversible solution made from durable rubber with proven adhesive backing, and for those who can install it in moderate temperatures following the included directions.