Philmore 12-3402 Black Sealing and Insulating (S/I) Tape, 1" Wide x 10' Length, -65F to 500F, Insulates 8kV Per Layer

S/I Tape self fusing black rubber tape. 1000 more uses every day. Made of specially formulated silicone rubber. Has no adhesive but chemically bonds itself upon contact. Once wrapped, forms a permanent seal within 24 hours that is airtight and waterproof. Can insulate up to 8000v, with stand a temperature range of -65f to 500f, can even stop a pressurized leak.

Features
Insulate electrical connections
Repair damaged wiring
Put grips on tools
Fix leaking pipes
Bundle wires