BoatBanter.com - View Single Post - Sealing a Thru-Hull Hole

(Chuck Baier) wrote in message . com...
Tony, The old thru-hulls should be removed and the holes glassed in.
This repair needs to be done correctly so unless you have some good
experience with doing this, hire a qualified professional.
snip

Yep, this is the best option, just get your chosen 'qualified professional'
to tell you what they plan to do and how. Then check that against books,
surveyor, etc. It's very easy to slap some glass around and fair up with
car body filler.....

open. You really need to determine why they are disintegrating.

Almost certianly de-zincification of brass (pseudo-bronze) fittings. I guess
you could get a blank made in real bronze, but that would probably cost as much
as glassing the hole up.

HTH, Adrian