sealing mast electrical connectors

[hellosailor]

sis, it would probably help if you posted a link to a picture, and said what kind of boat. If it is a bulkhead connector, the answer may be to remove it but if the wire runs through, you may be able to repair it from below. If you can't see the underside of the wires from inside the cabin of the boat, there's probably a "headliner" on the overhead of the cabin (it isn't a "ceiling" on a boat) and that may have to be partially removed to access the wiring.

A picture's worth a thousand guesses here.

[citykid]

I will supply photos
citykid

[citykid]

I got the photos. Will try to upload
Sis

[TropicCat]

In some boats the wiring is actually incorporated into the fiberglass layup when the boat was built. This is the case with my Catalac. In cases where the wiring has either corroded or frayed, I've had to remove the headliner, chop the wires out of the fiberglass and then solder extensions onto them. I use heat shrink to cover the splice. it works just fine.

I also use the "Coax Seal" for thru deck electrical and have had zero problems with water or corrosion. Again, it works just fine as Hello sailor mentioned above.