Product Specifications: Silicone Adhesive Acrylic Adhesive Color Dark Amber Dark Amber Adhesion Type Silicone Acrylic Polyimide Film Backing Thickness 10 mil 10 mil Total Thickness 11.5 mil 11.5 mil Tensile Strength 135 lbs/in 135 lbs/in Elongation 55% 55% Dielectric Strength (v/mil) 23500 23500 Max Recommended Operating Temp (F/C) 500°F / 260℃ 300°F / 150℃ Length 15 yards 15 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 15 yards long; this listing is for the 10 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.