I have this summer neighbor that used to work for Boeing building rockets for NASA that showed me the coolest tape ever. Its called Scotch 23 Rubber Splicing Tape. They called it "Bi-Seal" and NASA used it for making sure wiring harness connectors would not come loose under the extreme vibration during the burn. One winter, he left his outdoor water hydrant open when gone for the winter and the ice split 2' of the pipe above ground. This stuff sealed it until the welder could come fix it. It didn't leak a drop, he could have left it taped. He told me a story about it fixing a coworkers blown radiator hose and that it never leaked again. Apparently, heat makes it stick together even better.
Anyhow, he gave me just over a roll of it, and what little I have used it, all I can say is DAMN! Once you stretch it and wrap it (its not sticky at all), it vulcanizes to itself and, after one minute, cannot be peeled apart. The only way to get it off is cutting it. That is some serious stuff if anyone is interested in checking it out. Although the rolls are fairly expensive, the material stretches quite a bit and a little 3" piece can seal a coax barrel connector with ease.
Anyhow, he gave me just over a roll of it, and what little I have used it, all I can say is DAMN! Once you stretch it and wrap it (its not sticky at all), it vulcanizes to itself and, after one minute, cannot be peeled apart. The only way to get it off is cutting it. That is some serious stuff if anyone is interested in checking it out. Although the rolls are fairly expensive, the material stretches quite a bit and a little 3" piece can seal a coax barrel connector with ease.