super33Scotch® Super 33+™ Professional Grade Vinyl Electrical Tape is a black, 7 mil (0.18 mm) tape, on a 1 in (25.4 mm) core, combines the flexibility of a PVC backing with excellent electrical insulating properties to provide primaryScotch® Super 33+™ Professional Grade Vinyl Electrical Tape is a 7-mil thick, premium grade all-weather vinyl insulating tape. It is desned to perform continuously in ambient temperatures