Aluminum single sided self adhesive butyl rubber tape is an exclusive laminate of reflective aluminum foil, rugged, cross-linked polymer films, and a thick layer of butyl rubber. The butyl compound adheres to most surfaces and seals around most punctures, forming a protective waterproof barrier. ▬ Application : Roof leaks, gutters, down spouts, boats, kayaks, personal watercrafts, canoes, outdoor equipment, mobile homes, RVs & campers, PVC & plumbing pipes,sprinkler systems, pools and spas, windows, doors, walls, seams, vents, air ducts, HVAC s creates a super strong, waterproof seal, DIY projects and so much more! ▬ Use On : PVC, acrylic, metal, steel, copper, aluminum, wood, ceramic, porcelain, tile, glass, rubber, fiberglass, stucco, plaster, stone, cement, concrete, dry wall, EPDM roofs,some plastics, fabrics, vinyl and so much more!