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Anyone who’s left a roll of general purpose vinyl tape in the cab of their truck on a very hot summer day can attest to the fact that heat makes the adhesive soft. Extreme heat makes it ooze and flow.

Inline splice insulation. You can protect a low-voltage inline splice in a similar manner by wrapping the installed connector with four half-lapped layers of rubber mastic tape or rubber splicing tape, and then over-wrapping it with two half-lapped layers of premium vinyl electrical tape.

Bus bar. A common method of insulating a bus bar connection is to first wrap it with two layers of varnished cambric. The subsequent steps consist of four half-lapped layers of rubber or rubber mastic followed by two half-lapped layers of premium vinyl tape.

It can also be used to secure loose wiring, prevent interference between wires, and provide a moisture barrier.