Flex Seal is liquid rubber in a can. Unlike traditional paints, Flex Seal starts out as a thick liquid that can seep into cracks & holes to form a waterproof, weatherproof seal. Easy to use, just brush, dip & roll or pour to stop leaks fast. Flex Seal forms a durable, breathable, weatherproof, non-slip barrier. It is resistant to rain, snow, sun, wind, hail, air, moisture, UV degradation, extreme temperatures, & natural weathering. Can be used for a variety of coating & sealant applications. Common liquid applications include roof & gutter repairs, ponds & birdbath assembly & repairs, basements & foundations, tools & sporting equipment upgrades & repairs, cars, trucks & vans, RV repairs, campers & trailers, boats & watersports equipment, DIY projects, crafting & hobbies. Recommended surfaces are concrete, glass, brick, stucco, masonry, wood, copper, plastic, tile, fabrics, wires, vinyl, fiberglass, ceramic, porcelain, metal, aluminum, natural stones, foam, asphalt, EIFS, TPO, PVC, EPDM, CSPE & Hypalon polyurethanes. Suggested Use Location: Interior; Material Form: Gel / Liquid; Base Material: Water-Based Latex; Packing Type: Can.