I have a can of the plasti-dip, though never used.
Self-fusing silicone tape, is the thing.
One brand easily found is
RESCUE TAPE
DX Engineering sells a similar “coax tape”
Both are sold in quantities that make them expensive per foot. But:
1). The stretch is 2:1 or more.
2). Expect to wrap one-half width
It doesn’t have adhesive, per se, but has to it a stickiness. So, both sides have cellophane protection.
My rule of thumb is not less than 6” length to cut despite a minor job. It takes two wraps to really stay.
Avoid handling either end. Most of all the finish. Leave cellophane in place long as possible. Only problem I’ve ever had with it is the end coming loose.
Any good? Well, try laying under a Kenworth on the shoulder of US-60 just outside Pampa, TX (raining, of course; 40F & windy) to seal a heater core return hose that got a hole rubbed in it by being cut too long thus an interference fit against power steering mechanism. Brand new tractor.
The Cummins house in Amarillo isn’t that far away . . . but I’m not taking that chance.
They got to it the following day. The tape had nicely fused together. I’d covered it with SCOTCH 88 and then some cheap ductape.
No leaks. Had to slice it off. Examined and was sold on it in a larger roll for future jobs.
Found an entry on eHam where in an antenna installation after heat shrink, the layers were:
1). Scotch 33
2). Fuse Tape
3). Scotch 88
4) a fabric-style UV-resistant electrical cover tape (no adhesive).
The avoidance of water intrusion AND condensation-build is my understanding at present. I’ve never put up a fixed location radio antenna (just a big TV antenna in a chimney mount many years ago)
So, while that list may not be ideal, I can say that self-fusing silicone tape is an item you want for your supply box as those layers MELT into one another.
Expect that you may not get it right the first time. Leave it till next day to inspect. How tight to wrap is one of those calibrated elbow things.
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