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Old 24-12-2015, 11:19   #1
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Water proof caulking and sealing

Lots of articles and products. I have deep cavities under the toe rail where the chainplates go through. I need something fairly liquid that I can squeeze inside and that distributes around in there.
What is the right sealant?
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Old 24-12-2015, 12:10   #2
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Re: Water proof caulking and sealing

Pic would be great. Are you rebedding the chain plates or just digging out some old caulk around the plates?

I'd say life caulk :-)
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Old 24-12-2015, 12:36   #3
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Re: Water proof caulking and sealing

Are you looking for something which you can inject into a cavity, without removing any hardware, to bed things thusly?
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Old 24-12-2015, 12:56   #4
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Re: Water proof caulking and sealing

Liquid LifeCaulk works well where you want the caulk to flow. It is a liquid that eventually sets but needs a 'receptical' to keep it in place till it goes off after quite a bit of time. If you've dug out caulk or have a void that will hold the Liquid in place till it goes off, it would work. Have used it successfully to seal a hidden leak that nothing else would seal. Laid a bead of LLC along the suspected source of the leak and it stopped the leak after a short period.

There is also a liquid caulk called 'Captain Something or Others caulk or similar name. Perhaps someone is familiar with the actual name and could supply it. It's a Brit. product and don't know if it's available in the US. Have heard a few reports of success using the stuff.

If you can get the nose of caulking gun in the cavity, LifeCaulk, 4200/5200 of Sikkens might also work though may not bond well to the surrounding surfaces.
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Old 24-12-2015, 13:20   #5
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Re: Water proof caulking and sealing

Thanks all. Yes, trying to squeeze liquid caulk into the cavity next to the chainplates below the toe rail. There is a cover plate around the chain plates that I can screw off and lift up giving me a small space to sqeeze the nose of a caulk gun in.
I recently broke of a piece of the teak toe rail and found these large spaces around the chainplates. And I leak water through one of them. So now I want to fill these places with something that is fairly liquid and sticks to the surrounding fiberglass, old caulk (that I cant' get to), wood, and chainplates. That's in case water is pressured upward or downward along the chainplates.
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Old 24-12-2015, 14:00   #6
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Re: Water proof caulking and sealing

Would it not be best to pull the hardware in question, inspect everything; especially the wood (for rot), & the chainplates (for crevice corrosion), & then fully re-bed things?
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Old 24-12-2015, 14:04   #7
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Re: Water proof caulking and sealing

Yes, but I have kept it pretty well varnished and sealed, no rot.
And taking all toe rail off is a major operation to be done on the hard and by professionals costing a few grand. Don't want to let it get to that.
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Old 24-12-2015, 14:36   #8
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Re: Water proof caulking and sealing

Just reseated some of my chain plates as the sealing method from new was never good. Had some crevice corrosion so replaced the lot. As these things tend to move I resealed with epoxy up to deck level then normal sikaflex (with primer! ) for the teak deck. Did other chain plates this way a few years back with very good results. Hope this helps
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Old 25-12-2015, 06:00   #9
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Re: Water proof caulking and sealing

Quote:
Originally Posted by roverhi View Post
Liquid LifeCaulk works well where you want the caulk to flow...
There is also a liquid caulk called 'Captain Something or Others caulk or similar name. Perhaps someone is familiar with the actual name and could supply it. It's a Brit. product and don't know if it's available in the US ...
Captain Tolley's Creeping Crack Cure ➥ Capt. Tolley's Creeping Crack Cure
CAPTAIN TOLLEYS Crack Cure Sealant, 2 OZ. | West Marine
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