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post #20 of Old 02-25-2014 Thread Starter
GMFL
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Re: Remove Varnish from Teak Caulk

Quote:
Originally Posted by Classic30 View Post
It's fairly simple really: Firstly, if you varnish right over the whole thing, the varnish will crack along the edges of the caulking as the timber moves allowing moisture to get under it.

All common sense (and practice) would suggest you leave the timber un-varnished...
What would make you think the varnish would crack? Teak hardly moves, healthy varnish is flexible, so is caulk. The caulk would have to rely on the varnish to provide a secure joint. Teak caulk is formulated to adhere to teak, not varnish. I could go on....

You could make an argument that the varnish won't adhere to the caulk. However, if that was the case, I wouldn't have started this thread.

Common sense would suggest that my boat had no exterior wood. I'm passed that though.
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