Electrical Putty

Can be wrapped, stretched, or molded around irregular shapes to provide a quick, smooth insulation build-up.

Covers irregular surfaces like fittings and valves.
Electrical-grade, rubber-based, self-fusing putty tape provides insulation for connections up to 600V.
Non-corrosive synthetic rubber comes with a peel-off backing.
Works effectively in temperatures ranging from 32 to 176° F.