Features: The specification of the tape consists of two layers, adhesive and film Inner layer: butyl rubber Outer layer: polyethylene Thickness: 0.40 - 1.30mm Width: 50, 75, 100, 150, 230,300mm Length: 30 - 200m Tapes specifications: 1) T-140 with 0.38mm / 15mil thickness and 50 - 230mm width 2) T-150 with 0.51mm / 20mil thickness and 50 - 230mm width 3) T-165 with 0.64mm / 25mil thickness and 50 - 230mm width 4) T-180 with 0.76mm / 30mil thickness and 50 - 230mm width 5) T-1100 with 1.02mm / 40mil thickness and 50 - 230mm width 6) T-1130 with 1.27mm / 50mil thickness and 50 - 230mm width