Bertech Double Sided Polyimide Tape, 1/2" Wide x 36 Yards Long, 1 Mil Thick on a 3" Core RoHS Compliant Made of 1 mil polyimide film with 1.5 mil of silicone adhesive coating on each side (4 mil total thickness) Can withstand temperatures of up to 500F/(260C) Designed to be used for temporary masking purposes Offer outstanding thermal endurance with excellent puncture and tear resistance