heggars
Nec flectitur nec mutant
I've been using this tape for a while now and it's brilliant. I use it to stop water ingress into RF cables and has a wide temp range and will not degrade very quick.
Spray your connector with WD-40 or equivalent and wrap it in this tightly and nah water will get in.
To remove use a sharpe knife and start again.
No Nonsense Self Amalgamating Tape 25mm x 10m - Screwfix.com, Where the Trade Buys

Spray your connector with WD-40 or equivalent and wrap it in this tightly and nah water will get in.
To remove use a sharpe knife and start again.
No Nonsense Self Amalgamating Tape 25mm x 10m - Screwfix.com, Where the Trade Buys