Trim-Lok D-Shaped Rubber Seal.53 H x.75 W x 100 L - Durable Weather

In this review of the Trim-Lok D-Shaped Rubber Seal the bottom line is clear: this foam EPDM seal is best for anyone needing a practical, weatherproof strip for doors, windows, RV slide-outs and boat hatches where a reliable physical barrier to dust, noise and water is the priority. The reviewer found the strip easy to cut and fit, with a strong, compressible D-profile that forms a consistent seal. The adhesive system is generally effective, though user experiences vary, so it is worth checking surface preparation before final placement.

Key Features

• D-shaped EPDM foam: provides a compressible edge that seals gaps and reduces noise and vibration on doors and hatches.
• HT general acrylic adhesive: offers pressure-sensitive attachment that speeds installation on clean, dry metal and fiberglass surfaces.
• Weather resistance: resists water absorption, ozone and sunlight aging to maintain a usable seal in marine and automotive environments.
• Wide temperature range: rated to operate from -20F to +158F so it performs in cold winters and hot summers without excessive hardening or collapse.
• Cut-to-size length: 100 length allows trimming to fit RVs, boats, cars or garage doors without needing multiple pieces.
• Thick base profile: the sturdy base improves long-term retention when compressed against frames and thresholds.

Who It's For

This seal is aimed at DIYers, mechanics and boat owners who need a straightforward weatherstrip that can be trimmed to length and installed quickly on doors, windows, slide-outs and hatches. It works well where a physical foam barrier is needed to block drafts, reduce rattles and keep out dust.

Those seeking a permanently bonded, heavy-duty adhesive system for rough or oily substrates should consider a mechanical fastener or a dedicated structural adhesive instead, since some users report mixed results with the pressure-sensitive adhesive under challenging surface conditions.

Pros & Cons

Pros

• Effective foam profile that seals gaps against air, water and noise.
• Durable EPDM material resists UV, ozone and low temperatures.
• Easy to cut and install with the included pressure-sensitive adhesive on clean surfaces.
• Good value for a 100 length that covers several small jobs or one larger application.

Cons

• Adhesive quality is mixed for some users, so surface prep or supplemental fastening may be needed.
• May not adhere well to contaminated or highly textured surfaces without additional adhesive or mechanical clips.

Specifications

Our Verdict

The Trim-Lok D-shaped EPDM seal is a practical, cost-effective solution for sealing doors, windows and RV slide-outs where a compressible weatherstrip is needed. It delivers durable resistance to UV and low temperatures and is easy to trim and install; just prepare the surface and consider extra fastening on rough substrates. For most DIY and marine/automotive sealing tasks it represents good value and reliable performance.

Frequently Asked Questions

Will this stick to painted metal?
Yes, the pressure-sensitive acrylic adheres well to clean, dry painted metal, but degreasing and scuffing the surface will improve long-term hold.

Can it be used on boat hatches?
Yes, the EPDM foam resists water absorption and sunlight aging, making it suitable for most boat hatch and companionway seals.

Is the adhesive permanent?
The adhesive is pressure-sensitive and designed for strong initial tack; on difficult surfaces supplemental adhesive or mechanical fasteners can improve permanence.