When performance matters, you can count on Ideal Wire Armour premium vinyl electrical tape 33 Black to insulate and protect, stretch with strength, and bond in the toughest conditions and most critical applications at a great value. Commercial electric vinyl tape with blue core technology that provides high elasticity, that is flame retardant, high UV resistant that is impervious to water, oil, acids, alkalis and a wide variety of corrosive chemicals. Primary vinyl electrical tape use for insulation of electrical splices up to 600-Volt.