Rescue Tape is the leading brand of self fusing silicone tape and winner of Hardware Retailing"s Retailers Choice Award. 950 P.S.I. tensile strength, resists 500 F. (260 C.) to 85 F. ( 65 C.), insulates 8000 volts per layer. It is UV, chemical, and weather resistant. Just stretch, wrap, and Rescue Tape creates an airtight waterproof seal for plumbing, electrical, and general purpose applications. Satisfaction guaranteed. Each roll is 1" W. x .020" (20 mil) thick x 12" L.