Product Specifications: Silicone Adhesive Acrylic Adhesive Color Amber Amber Adhesion Type Silicone Acrylic Polyimide Film Backing Thickness 1 mil 1 mil Total Thickness 2.5 mil 2.5 mil Tensile Strength 32 lbs/in 32 lbs/in Elongation 40% 40% Dielectric Strength (v/mil) 7900 7900 Max Recommended Operating Temp (F/C) 500°F / 260℃ 300°F / 150℃ Length 36 yards 36 yards Adhesion to Steel (oz/in) 25 25 Polyimide tape is made by combining polyimide film with a specific adhesive, usually either acrylic or silicone. (Silicone adhesive polyimide tape is often known under the brand name Kapton.) Silicone adhesive tapes have a high temperature resistance rating of 500°F but are more expensive compared to acrylic adhesive tapes, which have a lower temperature rating of 300°F . Each roll is 36 yards long; this listing is for the 1 mil thickness tape. Our polyimide tape resists acids, oils, solvents, and bases and has superb dielectric strength ideal for electrical insulation usages. Common Applications: soldering, powder coating masking, and other uses that require a mix of high heat adhesive tape and clean removal with no residue. Polyimide tape is naturally amber, but we offer black polyimide tape as well.