Product Specifications: Silicone Adhesive Acrylic Adhesive Color Black Black Adhesion Type Silicone Acrylic Polyimide Film Backing Thickness (mil) 1, 2, 5 1, 2, 5 Total Thickness (mil) 2.5, 3.5, 6.5 2.5, 3.5, 6.5 Tensile Strength (lbs/in) 32, 53, 95 32, 53, 95 Elongation 40%, 45%, 50% 40%, 45%, 50% Dielectric Strength (v/mil) 7900, 12500, 19500 7900, 12500, 19500 Max Recommended Operating Temp (F/C) 500°F / 260℃ 300°F / 150℃ Length 36 yards 36 yards Adhesion to Steel (oz/in) 25 25 Black polyimide tape is significantly less reflective than polyimide's signature amber hue; this makes it ideal for applications that require opacity, low reflectivity, or a specific aesthetic. Each roll, no matter thickness or width, is 36 yards long. Polyimide tape is made by combining polyimide film with a specific adhesive, usually either acrylic or silicone. Silicone adhesive tapes have a high temperature resistance rating of 260℃ but are more expensive compared to acrylic adhesive tapes, which have a lower temperature rating of 150℃.) (Silicone adhesive polyimide tape is often known under the brand name Kapton.) Our tapes are optimal for soldering, powder coating masking, and other applications that require a mix of high heat adhesive tape and clean removal with no residue. (Our polyimide tape also resists acids, oils, solvents, and bases!) Our polyimide tapes also have high dielectric strength ideal for electrical insulation purposes.