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post #1 of 3 Old 06-14-2016 Thread Starter
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Sealing around rubrail

Hello. See pic attached. I have a two part rubrail and where it meets the hull there is a gap and I wonder what sealant is best at that area. I also dug out a lot of old sealant from around the toe rail. Outside of removing it and bedding it butyl is there anything that I can run a bead with or is it too small of a gap?
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Last edited by CapriC; 06-14-2016 at 05:57 PM.
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post #2 of 3 Old 06-15-2016
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Re: Sealing around rubrail

Probably would turn a slight imperfection into a mess trying to caulk behind the rubber rail. Nothing will stay in place given the flexibility of the rubber. Leave it.

Have never had luck applying caulk to the outside edge of a cap rail or similar. Caulk seems to always pull away from the wood. If there is a considerable gap that goes under the rail, might have more luck. Only thing I've found that works on cap rails is to pull and rebed it. If you have specific fasteners that are leaking, pulling the fastener and rebidding it would probably stop the leak. Unfortunately it's a very messy job and really job hard to get enough caulk on the fastener but not make a mess of the wood where the bung goes.
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post #3 of 3 Old 09-21-2016
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Re: Sealing around rubrail

I am thinking of unscrewing mine and re-bedding. Toe rails are all shot, so it's time to replace anyway and rubrail is mostly fine, but there are several leaks, so needs to be sealed and I think the only way is to unscrew, remove the old caulking and put it back.
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