Thread: Shorten transducer cable

Originally Posted by Beaker

Cut, stagger joint (solder), individually glue heat shrink, make sure shielding is really well done, glue heat shrink over the whole joint space.
Gold standard - self amalgamating tape between individual wires before final heat shrink.

Well, not really. If you want it waterproof to immersion standard, solder and heatshrink each core, strength member it to minimise the chances of a yank failure and seal one end of a dual wall heatshrink that will cover the lot. Then either get thin silicone sealant or thin some down and pour it into the center of the joint, and seal the other end of the heat shrink. Once both ends are shrunk and sealed, work the center and make sure the sealant coats everything then shrink the center down as well. It's a bit more fluffing about, but I've had those joints survive down to 100m thereabouts for months.