ISC Racers Tape HT2314 ISC Helicopter-OG-HD Surface Guard Tape: 2" x 30 ft, Transparent Core: 3 inch diameter Backing/carrier: polyurethane film Adhesive: acrylic Release liner: 92 lb. Polycoated white paper Thickness: 19.2 mils (carrier, adhesive, liner) 14.5 mils (carrier, adhesive) 12 mils (carrier)