Dicor RV Seal-Tite sealing repair tape 4" x 12.5' — white, weather-resistant vinyl for roofs & seams

Dicor Seal-Tite is a white, weather-resistant vinyl repair tape roll designed to quickly seal leaks and gaps on RVs, trailers, and motorhomes.

If you need a fast, durable repair for seams, vents, roof joints, or flashing, this 4" x 12.5' roll offers a flexible, adhesive-backed solution that bonds to common RV surfaces like EPDM, TPO, PVC, fiberglass, metal, wood and plastic. The tape lays down smoothly, conforms to irregular shapes, and is formulated to withstand outdoor exposure so repairs stay put while you travel.

How will Dicor Seal-Tite fix leaks on my RV roof?

The tape creates an immediate, continuous barrier over punctures, seams and deteriorated sealant lines. Its adhesive adheres to many roofing materials and the vinyl backing flexes with temperature changes to reduce re-tears and gaps.

• 4" width covers most seam and flashing areas without trimming
• Adhesive bonds to EPDM, TPO, PVC, fiberglass and metal
• Flexible vinyl resists cracking from expansion and contraction
• White finish blends with many roof colors for a cleaner appearance

How quickly does the repair hold up after application?

Seal-Tite forms an instant barrier on contact so many leaks stop immediately. The product is formulated to fully set and stabilize within 24 hours under normal conditions, giving you both short-term protection and longer-lasting coverage.

• Immediate adhesion prevents water intrusion right away
• Weather-resistant compound cures to steady performance within a day
• Suitable for temporary and semi-permanent repairs while you plan a full service
• Works in a range of temperatures—refer to product instructions for extremes

Will this tape stick to different RV materials and trims?

Yes — the adhesive backing is formulated for compatibility with a wide variety of substrates commonly found on RVs and trailers. For optimal results, surfaces should be clean, dry and free of loose debris or oils before application.

• Compatible with EPDM rubber, TPO, PVC roofing, fiberglass and painted metals
• Adheres to wood and many plastics when surface prep is performed
• Use primer or cleaner where heavy oxidation or contamination exists
• Trim tape to shape for tight fits around vents, skylights, and seams

How much coverage does a 4" x 12.5' roll provide and how do I apply it?

The roll delivers roughly 50 linear feet of one-inch coverage or 12.5 linear feet at full 4" width, enough for multiple minor repairs or patching a longer seam in sections. Application is straightforward: clean the area, measure and cut, peel backing, press firmly and smooth to remove air pockets.

• Roll size: 4 inches wide by 12.5 feet long for flexible patching options
• Measure and overlap edges by at least 1" for continuous seals
• Smooth with a roller or hand pressure for good adhesive contact
• Store unused portion in original backing to keep adhesive fresh

Who is this for? Dicor Seal-Tite is intended for RV owners, repair technicians and DIYers who want a quick, weather-resistant solution for sealing leaks, flashing failures, seam gaps or minor roof damage. It’s especially useful for on-the-road emergency repairs, seasonal maintenance, or as a trusted interim fix before professional reroofing or re-sealing work.