Scotch Heavy Duty Vinyl Electrical Tape 22, 1 in x 36 yd Provides consistent mechanical and electrical protection thanks to its rubber-resin adhesive paired with a PVC backing that resists flames Resists the damaging effects of acids, alkalis, solvents and copper corrosion, in addition to protecting against abrasion and moisture A great identification tape for phase marking. This 66-ft roll of tape is 0.75-in wide and has a thickness of 7 mil Made of violet PVC for resiliency