Feature: 1:Butyl Seal Tape, RV Roof Repair Tape Marine Rubber Seal Tape Covered with Aluminium Foil . This butyl seal tape is made from butyl rubber by special processing, non - toxic, no contraction, anti-aging, it can works well in preventing earthquakes, sealing, waterproofing, high and low temperature resistance, fire retardant and insulation. 2:This sealant tape is widely used in roofing of the building, surface crack, RV repair, window, boat Sealing, glass and EDPM rubber roof patching. Never be intimidated again with RV, mobile home, boat, fiberglass or galvanized metal roofing or EDPM roof rubber repair. 3: Very easy to use, just peel off the released film and then apply this butyl sealant tape to anywhere needed, the aluminium foil cover makas its size stable. Short Term Heat Resistance: 180 C degree (356 F degree); Long Term Heat Resistance: 120 C degree (248 F degree). Specification(approximately) Width: 2" ( about 5cm) Length: 16' (about 5m) Thickness:0.6"(1.5cm) Color: Sliver Aluminum Foil Backing/ Black Butyl Rubber Notice: Requirement: Working between -40C to 120C Make sure the surface clean and dry Do not peel off it after applying within 24 hours Tool needed: Cleaning tool Scissors Triming tool Better use with gloves . Package Content: 1 x Roof Sealant Tape