TRIM-LOK D-Shaped Rubber Seal with 3M Bonded Tape – EPDM Weather Stripping, 0.437" x 0.375", 100' Roll

Overview

TRIM-LOK delivers a reliable D-shaped rubber seal crafted from EPDM foam, designed to close gaps against dust, noise, and vibration. This 0.437" tall and 0.375" wide bulb comes on a full 100-foot roll, giving you flexible length options for doors, windows, and more. With an easy-to-apply adhesive backing, it helps create a snug, long-lasting seal across marine, automotive, RV, trailer, and home applications.

Why choose this D-shaped seal

• Pre-applied adhesive tapes: BT tape for moisture resistance and airtight bonding, or HT tape for easy repositioning during fitment.
• Weather resilience: designed to resist ozone, water absorption, sunlight aging, and low temperatures, helping maintain performance across seasons.
• Versatile sizing and cut-to-length capability: tailor the seal to fit hatch, door, or window openings with simple trimming.
• Made in the USA: TRIM-LOK has over five decades of experience in rubber and vinyl trim solutions, combining craftsmanship with practical engineering.

Key specifications and performance

• Dimensions: 0.437" height, 0.375" width, 100' length (cut to fit).
• Temperature range: -20°F to +158°F, enabling use in a broad range of climates.
• Recommended compression: 25%–50% of the bulb’s original height for best balance of seal and lifespan.
• Water and weather sealing: designed to minimize air drafts, dust, and light vibrations while resisting wear from exposure.

Applications and use cases

• Marine and boat hatches, cabin doors, and window frames requiring a dependable seal against moisture.
• Automotive doors, trunks, and dashboards where a flexible, durable gasket helps reduce rattles and wind noise.
• RV slide-outs, garage doors, and vehicle storage compartments needing a reliable weather seal.
• Home doors and windows where a simple, retrofit seal improves insulation and comfort.

Installation tips

• Choose BT tape for a moisture barrier or HT tape for easier repositioning during setup.
• Prepare the bonding surface by cleaning with a 50/50 mix of denatured alcohol and water, then rinse and dry.
• Cut the seal to length, remove backing, and press firmly along the intended path to secure.
• If using HT tape, allow at least 72 hours to reach full bond strength.
• Keep the bulb compressed within the 25%–50% range for longevity and optimal performance.

TRIM-LOK seals are designed to be a practical, adaptable solution for people who want better insulation, reduced drafts, and quieter closures without overpromising results. Explore how this weather strip could fit your project and create a more comfortable, protected space.