Scotch Super 33+ tape is a 7 mil THK, premium-grade, all-weather, vinyl electrical tape that is designed to provide electrical insulation for cable splices up to 600 V. The flame-retardant tape withstands a temperature range of 0 to 221 deg F (-18 to 105 deg C). Scotch Super 33+ electrical tape a black, 7 mil tape, on a 1 in core, combines the flexibility of a PVC backing with excellent electrical insulating properties to provide primary electrical insulation for splices up to 600 V. Abrasion, corrosion and UV-resistant, it makes an excellent protective jacketing for high-voltage cables and wire harnessing. UL Listed and CSA Certified, it resists alkalis and acids and is flame-retardant. Excellent all-weather performance in cold to 0 deg F ( 18 deg C) or hot to 220 deg F (105 deg C).