ESI Ultimate Tailgate Seal 10ft EPDM for Truck Caps & Tonneau Covers — Taper Seal, 14" Large Piece, 3M Adhesive

The ESI Ultimate Tailgate Seal with Taper Seal is a 10-foot automotive-grade EPDM rubber weatherseal designed to close the tailgate gap for truck caps and tonneau covers, keeping out dust and water while reducing vibration.

When you install a truck bed cap or tonneau cover, the gap at the bottom and sidewalls of the tailgate can allow dust, rain, and road spray into the bed. The ESI Ultimate Tailgate Seal provides a durable, adhesive-backed EPDM barrier that adheres to a wide range of exterior finishes — including spray-on bed liners — to seal that gap. This Original and Patented design includes a tapered section for sidewall adjustments and a 14" large-seal piece for especially wide gaps.

How does this tailgate seal prevent water and dust intrusion?

The EPDM rubber forms a continuous barrier across the tailgate gap, stopping airborne dust and channeling water away from the bed. The adhesive backing creates a tight bond to the truck surface to maintain a seal under vibration and movement without mechanical fasteners.

• 10 feet of automotive-grade EPDM rubber for full coverage.
• 3M ST1200 high-performance adhesive tape for strong adhesion.
• Taper Seal section and a 14" Large Tailgate Seal piece for variable gap widths.
• Reduces tailgate vibration, improving fit and quietness.

Will this fit my truck and how is it installed?

The kit fits most trucks worldwide but is not universal — select vehicle-specific kits for many modern models and specialty tailgates. Installation takes about 30 minutes and works best when both the air and surface temperature are between 55°–104°F (13°–40°C).

• Not compatible with certain models (see VEHICLE SPECIFIC KITS list before purchase).
• Adhesive requires approximately 25 lbs of pressure to bond properly.
• Simple peel-and-stick installation; no special tools required beyond a roller or firm hand pressure.
• Works on painted surfaces, textured finishes, and spray-on liners.

How durable is the ESI Ultimate Tailgate Seal and what maintenance does it need?

Made from automotive-grade EPDM and backed with industry-standard 3M tape, the seal resists weathering, ozone, and repeated tailgate use. Minimal upkeep is required — occasional cleaning and visual inspection will prolong performance and adhesion.

• EPDM resists UV degradation and temperature extremes common to vehicle exteriors.
• 3M ST1200 adhesive maintains a long-lasting bond on multiple finishes.
• Inspect adhesive edge and reapply pressure if necessary after initial cure.
• Replaceable sections allow targeted repairs without replacing the full length.

Who is this for: The ESI Ultimate Tailgate Seal is aimed at truck owners who use bed caps or tonneau covers and want to minimize water, dust, and noise intrusion through the tailgate gap. It's ideal for daily drivers, contractors, and outdoor enthusiasts who need a straightforward, durable sealing solution — just confirm fit for your specific truck model, follow temperature guidelines, and apply firm pressure for the adhesive to bond.