Feature●Amber, 2.0 mil polyimide backing and 1.3 mil silicone adhesive●Works up to 500 degrees f, sharp, clean paint edge●Excellent thermal, abrasion, and chemical resistance. Amber color makes tape placement obvious for both application and removalDescription Polyimide tape 8998 is an Amber, 2.0 mil, polyimide tape with a silicone adhesive. Amber, 2.0 mil polyimide backing and 1.3 mil silicone adhesive.