used this with a sat kit I purchased to seal the connectors to make them weatherproof.
You only need a little tape, as this stretches incredibly well, but its biggest benefit is its ability to create a very tight waterproof seal. After a week I tried to unravel the tape, but found that I couldnt as it is that good a seal - in the end I had to cut the cable & re-strip the cable to fit in a connector!!!
Good quality - definitely recommend if you need to waterproof a connection