ESI Tailgate Seal 10ft for Truck Caps & Tonneau Covers — EPDM Rubber with 3M Tape, Tapered 14" Section

ESI Ultimate Tailgate Seal with Taper Seal is a 10-foot automotive-grade EPDM rubber seal with 3M ST1200 tape designed to close the tailgate gap under truck caps and tonneau covers to reduce dust, water intrusion, and vibration.

If you carry gear under a truck cap or use a tonneau cover, the gap at the bottom and sidewalls of the tailgate is a common entry point for dust, rain, and road spray. The ESI Ultimate Tailgate Seal is an original, patented solution made in the USA that adheres to most surfaces — including spray-on bed liners — and offers a durable, flexible barrier engineered for vehicle use. This kit includes a 14" large piece with a taper that can replace standard sections for wider gaps or sidewall applications.

How does this seal prevent dirt and moisture from entering my truck bed?

The EPDM rubber compresses to form a continuous barrier across the tailgate gap, stopping airborne dust and diverting water away from seams. The 3M ST1200 adhesive ensures a strong bond to metal, painted surfaces, and textured liners for long-lasting protection.

• 10 feet of automotive-grade EPDM rubber for full-length coverage
• 3M ST1200 adhesive adheres to varied surface finishes
• Tapered 14" section included for wider gaps or sidewall sealing
• Reduces tailgate rattle and vibration during travel

Will this fit my truck and how do I know if I need a vehicle-specific kit?

ESI’s Ultimate Tailgate Seal fits most trucks worldwide, but not all; several models with specialized tailgates require vehicle-specific kits. Review the list of excluded models — such as recent Silverado/Sierra variations, some Ford and Ram configurations, and a number of EV and multifunction tailgates — and order the matching kit if your vehicle appears.

• Check exclusions for Silverado/Sierra, Ford, Ram, Toyota, Honda, and EV models
• Vehicle-specific ASINs listed for specialized tailgates or multifunction designs
• Standard kit fits common tailgate designs across most makes and years
• Contact support or reference fitment notes before purchasing for certainty

How long does installation take and what conditions are required?

Installation is straightforward and typically completed in about 30 minutes. For best adhesion, apply the seal when temperatures are between 55°F and 104°F (13°C–40°C) and use roughly 25 pounds of pressure along the tape to ensure a secure bond.

• Approximate install time: 30 minutes
• Recommended temperature range: 55°–104°F (13°–40°C)
• Press with ~25 lbs. pressure to activate adhesive
• Compatible with spray-on liners and painted or bare metal finishes

What performance and durability can I expect over time?

EPDM rubber resists weathering, UV exposure, and repeated compression, offering durable sealing and noise reduction. The strong 3M tape helps maintain the seal under vibration and regular use, while the tapered piece handles larger or irregular gaps without compromising fit.

• EPDM resists cracking, UV, and temperature variation
• Bonded with automotive-grade 3M ST1200 tape for lasting hold
• Taper seal reduces leak risk at wide sidewall or custom cut points
• Also reduces tailgate vibration for quieter rides

Who is this for? The ESI Ultimate Tailgate Seal is ideal for truck owners who store gear under a cap or use a tonneau cover and want a durable, OEM-quality barrier against dust, road spray, and tailgate vibration. Choose this kit if your vehicle uses a standard tailgate configuration and you need a fast, reliable install; if you drive a model listed among vehicle-specific exclusions, pick the matching ESI kit designed for that tailgate style.