3M roll of black, 7 mil premium-grade, all-weather vinyl electrical insulating tape with an aggressive adhesive and elastic backing that enables it to easily conform to irregular surfaces for water-resistant electrical and mechanical protection. Highly conformable and super stretchy in all weather applications. This tape provides flexibility and easy handling for all around performance. It combines PVC backing with excellent electrical insulating properties to provide primary electrical insulation for splices up to 600 volts and protective jacketing. UL Listed and CSA Certified. Excellent resistance to UV rays, abrasion, moisture, copper corrosion, alkalis, and acids. Flame retardant. Excellent all-weather performance in cold to 0 degrees F (-18 C) and is designed to perform in a continuous temperature environment up to 220 degrees F (105 degrees C). On a 1" core.