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Liquid Rubber RV Lap Sealant is a self-leveling white sealant for horizontal roof details on RVs: vents, skylights, AC units, antenna mounts and lap seams. It flows out flat on its own instead of needing tooling like traditional caulk, and cures into a flexible, UV-resistant rubber that moves with the roof through heat, cold and road vibration. It is a detail sealer, not a whole-roof coating; Liquid Rubber sells seam tape and RV roof coating for larger seams and full coverage. It suits owners doing their own roof maintenance who want a clean, waterproof seal around fittings.
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Liquid Rubber RV Lap Sealant is a white, self-leveling roof sealer for RVs. It flows and levels on its own to form a smooth, waterproof seal around horizontal roof details. Flowing during application is normal. It stays flexible, so it moves with the RV through temperature changes and road vibration.
It is made for sealing RV vents, skylights, AC units, antenna mounts and roof seams. It is not intended for vertical surfaces, sidewalls, or filling open gaps or cracks. For larger seams, movement areas or a full roof system, use it with Liquid Rubber Seam Tape and Liquid Rubber RV Roof Coating.
Apply it to clean, dry surfaces with a standard caulking gun. After cutting the nozzle, puncture the inner seal before applying. It will not adhere to silicone, so remove any existing silicone completely first. When the surface is properly prepared, it is compatible with EPDM, TPO, fiberglass, metal, aluminum, PVC and ABS.
