3M Temflex Rubber Splicing Tape 2155, 3/4 in x 22 ft, Black

Works well, sticks to itself and dosen't come undone or get brittle like plastic electrical tape.

Excellent tape. Tried the liquid sealant that created a complete mess, before finding this. This is a must have for Electrians. After stretching a piece, wrap, wait for a spell, it will rubberize. Waterproofing.

Super good rubber tape. I usually use magic tape but this is much higher quality and is much thicker.

not a good tape

This is not tape as you think of tape. No sticky adhesive. It is stretchy rubber that fuses to itself when wrapped forming a solid piece of rubber. Once fused it will not unwrap but you have to make sure the loose end fuses. For extra protection and durability wrap over it with electrical tape. I use this mainly for my radio coax connectors and it really keeps the moisture out. Amazing stuff if you want a durable, long lasting water proof connection. Also great for tool handles.