EternaBond Mobile Home & RV Repair Tape 12" x 12" White Patch — Instant Waterproof, UV-Stable MicroSealant

EternaBond 12" x 12" White Mobile Home RV Repair Tape is a ready-to-use, one-square-foot RoofSeal patch designed to create a fast, permanent watertight repair on roofs, RVs, mobile homes and a wide range of other surfaces.

When you need a reliable stop-gap or a long-term seal without messy primers or adhesives, this pre-cut 12" x 12" section gives you the professional-grade bond of EternaBond’s MicroSealant in a convenient size. Each patch is cut from new master rolls and uses a proprietary UV-stable backing plus an integrated primer-layer that helps the tape adhere to diverse materials—from EPDM and TPO to metal, tile, concrete, PVC and more. It’s built for field repairs where speed and durability matter.

How quickly will this 12" x 12" patch stop a visible leak?

Apply the patch to a clean, dry surface and press firmly: the MicroSealant forms an immediate waterproof barrier. While the physical bond is instantaneous, optimal long-term adhesion develops as the integrated primer interacts with the substrate over time.

• Immediate water resistance once firmly applied
• Use simple hand pressure or a roller for best adhesion
• Works on wet-weather repairs if surface is properly prepared
• Typical patching time: minutes, depending on prep

Which roof and surface types will this patch adhere to?

This patch is formulated for broad compatibility: it bonds to rubber, thermoplastic membranes, many metal finishes, and common building materials. It’s a preferred option for roofers and RV technicians because it adheres without additional primer on most surfaces.

• Compatible with EPDM, TPO, Hypalon, PVC and modified bitumen
• Adheres to galvanized, Kynar-coated, and copper metals
• Accepts tile, wood, concrete, pond liners and landfill liners
• Suitable for re-seaming and patching tears, splits, or open seams

What makes EternaBond’s MicroSealant different from ordinary tapes?

MicroSealant is a pressure-activated adhesive system in tape form that includes a built-in primer layer and a UV-resistant backing. Unlike standard adhesive tapes, it’s engineered to remain stable in sunlight and provide a durable, long-lasting seal under environmental exposure.

• Integrated primer reduces need for extra surface primers
• UV-stable backing proven to resist sunlight degradation
• Designed specifically for roof repair and exterior applications
• Manufactured from new master rolls to ensure consistent quality

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

Good surface prep extends the life of the repair. Remove dirt, loose material and moisture, and smooth sharp edges. Press the patch evenly and roll to remove air pockets; clamp or weight irregular areas until the bond sets.

• Clean surface of debris, oil and loose coatings
• Dry surface if possible; wipe with solvent for contaminated spots
• Apply with firm pressure and use a roller for uniform contact
• Trim edges if needed to fit seams or contours neatly

Who is this for? This 12" x 12" EternaBond RoofSeal patch is aimed at homeowners, RV owners, mobile-home technicians and professional roofers who need a compact, high-performance repair piece. It’s ideal for on-the-spot fixes where a full roll isn’t practical, for trial patches, or for keeping a reliable emergency repair in a service kit. If you work with multiple roof substrates or need a portable, durable patch that resists UV and weathering, this one-square-foot section delivers the proven EternaBond sealing system in a convenient size.