Adhesive Butyl Aluminum Foil Waterproof Patch And Seal Tape Self adhesion ,no leaking ,don’t need the torching and bonding agent ,environment friendly. High tensile strength and good elongation ,strong adaptability to substrate shrinkage ,crack and deformation. Repair older, damaged roofing surfaces and to protect against existing or potential leak situations. Mildew tape Product Name Butyl aluminum foil waterproof tape Color black/white/grey Application Used for construction joints Material aluminum foil+Butyl rubber Flex Tape Gaffer Tape Nano Tape