The bottom line?
Our Self-Fusing Tape Range.

We always recommend killing the power before working with any wiring.

self amalgamating rubber tape black 3m x 25mm.
Self-amalgamating tape is very similar to silicone tape, because it bonds to itself when it is stretched. It doesn’t contain any adhesive or gum to create a seal like most tapes. It is made of ethylene propylene rubber and needs to be lapped over itself to work.
Butyl Rubber Tape
Self-fusing silicone rubber products were first created in the United States in the 1950s. The technology was originally developed by university scientists and engineers for the US military, who wanted an alternative to PVC electrical tape.

we supply self-amalgamating tape manufactured from ethylene propylene rubber which is weatherproof and rugged enough to cope with the demands of most applications, including roofing and sailing where it is used as rigging tape. There are silicone self-amalgamating tapes which offer a slightly higher voltage rating than ethylene propylene rubber but these offer much poorer tear resistance.