【Waterproof Buty Tape】Our Butyl Insulation is manufactured with pure Butyl Rubber, thicker and heavier than similar products, stronger adhesive, non-toxic, waterproof, fire retardant, UV resistant, vapor barrier, anti-aging and odorless. BUY IT! It will be your best choice 【WIDE APPLICATION--Multi-Use】Repair for Roof Leaks, Window Sealing, RV Awning, Gutters, Downspouts, Boats, Personal Water Craft, Canoes, Outdoor Equipment, Mobile Homes, RV'S & Campers, PVC & Plumbing Pipes, Sprinkler Systems, Doors, Walls, Seams, Vents, Air Ducts, HVAC Systems, DIY Projects, EPDM Rubber Roof Repair, etc. 【Durable Material】Waterproof and high temperature resistant, sealed and chemical resistant, UV resistant (sunshine). 【Easy to Use】Simply peel off the protective film and apply the butyl sealant tape to any desired area. No additional waterproof coating required, installs without holes and can reliably seal moisture, vapor, corrosive chemicals and other leaks 【SAFE AND ANTI-SCRATCH】This repair tape is made of aluminum foil and butyl rubber, which is an environmentally friendly material, and has high viscosity. The small square aluminum foil structure on the surface is wear-resistant and scratch-resistant, which can ensure better sealing performance and a longer service life.