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When you think of types of electrical tape, you probably imagine it in black. However, manufacturers produce electrical insulation tape in almost every color of the rainbow. The varying colors indicate voltage protection and insulation. It’s vital to use the right colored tape—an incorrect tape color puts technicians at risk of insufficient voltage shielding:

The primary tapes used in electrical applications are vinyl, rubber, mastic, and varnished cambric. These products have been used in electrical work for many years, are code approved, and conform to key industry standards, including UL 520, ASTM D1000, and CSA 22.2. The Table below lists the primary uses for each of these types of tape.

Yes, 3M Rubber Electrical Tapes are engineered to repel moisture, making them perfect for outdoor applications. If wrapped properly, self-fusing rubber tapes can provide a watertight seal. To further protect against harsh environments, it's recommended to overwrap the rubber tape with durable vinyl electrical tape. These tapes are also built to withstand high temperatures, making them suitable for applications near motors, heat vents, or blast furnaces.