3M 92618 Temflex™ Black PVC Electrical Tape 3/4in. - 7mil Thick-1 Roll. 3M™ Temflex™ Vinyl Electrical Tape 175 is a black, high-performance, general use-grade, electrical insulating tape composed of an elastic vinyl (PVC) film backing and coated on one side with a non-corrosive, solvent-free, pressure-sensitive adhesive.