4” Wide Heat Shrink Tape - Case of 12 - White Heat Shrink Tape is great for reinforcing shrink wrap seams, patching holes in the shrink wrap, and attaching zipper-access doors. Heat Shrink Tape is a conformable, tough, waterproof tape with a permanently tacky adhesive which bonds well to most surfaces, over a wide range of temperatures. It has good tensile strength as well as good tear characteristics. Its low temperature bond is excellent. 4” Wide X 180’ Long Thickness: 9 Mil