Caulking Question

[bluefin650]

I will be changing out a through-hull transducer and was wondering what would be the best stuff to use for below the waterline? I had heard that 5200 was not as popular anymore.

 

[F/V First Team]

Rule 300 is what I would use

 

[Cape Island Boats]

Sika Flex 292 is another option

 

[F/V First Team]

292 is an awesome product, but if you suspect you will ever have to change the transducer out again, I might try something a little less permanent (Rule 300) Easier on the threads too.