Absolute USA BT1700 General Use 0.18mm x 3/4-Inch x 20Yd Electrical Tape (Black) General purpose electrical insulating tape Economical and durable with excellent resistance to a wide range of contaminants and weather conditions Primary electrical insulation for all wire and cable splices 0.18mm x 3/4in x 20Yd Combines the flexibility of a PVC backing with good electrical insulating properties to provide primary electrical insulation for splices up to 600V. Abrasion-, corrosion-, and UV-resistant. UL listed, it resists alkalis and acids, and is flame-retardant