EternaBond RoofSeal 12" x 12" White RV & Mobile Home Repair Patch — Peel-and-Stick, UV-Stable Waterproof Seal

EternaBond 12" x 12" White Mobile Home RV Repair Tape is a one-square-foot RoofSeal patch engineered to create a permanent, waterproof bond across roofs, RVs, and many building materials.

This pre-cut 12 x 12 inch section is sliced from new master rolls and delivers the same MicroSealant technology found in EternaBond rolls, packaged for single repairs and small projects. The white patch adheres to a wide range of surfaces — EPDM, TPO, hypalon, most PVC, metal (including copper and Kynar-coated), tile, wood, concrete, and even liners — providing a UV-stable, long-lasting seal that professionals rely on for leak mitigation and seam reworking.

How quickly will this patch stop a leak?

The patch is designed for rapid application so you can often create a watertight barrier in minutes once the surface is prepared. Its MicroSealant adhesive includes built-in primer properties that promote immediate contact adhesion and fast handling strength.

• Peel-and-stick application with no extra primer required for most materials
• Instant tack that holds while you smooth and finish edges
• Works in short repair timeframes — ideal for on-the-spot fixes

Which surfaces and roof types will this 12" x 12" patch bond to?

RoofSeal’s specialized backing and MicroSealant are formulated to bond to a broad spectrum of roofing and non-roofing substrates. It’s suitable for re-seaming, patching tears, and sealing open seams across both flexible membrane roofs and rigid materials.

• Compatible with EPDM, TPO, hypalon, and most PVC membranes
• Bonds to metal roofs, including copper and Kynar-coated panels
• Also effective on tile, wood, concrete, pond liners, and landfill liners

What makes this patch durable outdoors and resistant to UV exposure?

EternaBond RoofSeal uses a UV-stable backing that has been proven to resist sunlight degradation over long exposure periods. The combination of the backing and the MicroSealant adhesive maintains adhesion and flexibility under weathering conditions so the patch remains effective year after year.

• UV-stable backing formulated for prolonged sunlight exposure
• Flexible adhesive that expands and contracts with the substrate
• Designed to resist lifting, cracking, and water intrusion over time

How should I prepare the area and apply the 12" x 12" patch for best results?

Surface preparation determines the longevity of the repair: clean, dry, and free of loose material for the best bond. Apply firm pressure when placing the patch and smooth from the center outward to remove air and ensure full contact.

• Clean surface of dirt, oils, and loose particles; allow to dry
• Measure and cut if needed, then peel backing and align precisely
• Use a roller or firm pressure to fully seat the patch and seal edges

Who is this for: The EternaBond 12" x 12" RoofSeal patch is aimed at mobile home and RV owners, contractors, and property managers who need a quick, durable repair option without buying a full roll. It’s also useful for DIYers handling small roof repairs, patching liners, or addressing emergency leaks where a one-square-foot, professional-grade adhesive patch is the right size and performance for the job.