How to hot coat cetol? - SailNet Community
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post #1 of 8 Old 03-17-2013 Thread Starter
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How to hot coat cetol?

I'm redoing some of my brightwork with Cetol. I know for varnish it is possible to apply coats every 4 hours or so, instead of the recommended 24 hours with sanding in between. I believe this process is called "hot coating". Is there a similar procedure for Cetol, and if so, what is it? Thanks.

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post #2 of 8 Old 03-17-2013
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Re: How to hot coat cetol?

Even with varnish, I believe it should only be done on the first few highly thinned coats. The problem with building it too quickly is it just won't dry properly, which could mean it won't last as long.

Best to do it right.

p.s. I'm just not a fan of Cetol anyway, especially the old orange stuff. It flakes off.


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post #3 of 8 Old 03-17-2013
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Re: How to hot coat cetol?

No way to hot coat Cetol. It needs up to 24 hours to cure and before then it is tacky and sticky. You could probably cheat the interval down to 18 hours if all the drying conditions were perfect.

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post #4 of 8 Old 03-17-2013
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Re: How to hot coat cetol?

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Originally Posted by Minnewaska View Post
Even with varnish, I believe it should only be done on the first few highly thinned coats. The problem with building it too quickly is it just won't dry properly, which could mean it won't last as long.

Best to do it right.

p.s. I'm just not a fan of Cetol anyway, especially the old orange stuff. It flakes off.
What I've been doing with varnish is 2 coats in a day, with sanding every 2 coats. So 2 coats, 4 hours between, then sand the next morning. You will get wrinkling if you don't thin the varnish - I add 1/3 thinner. Even then, you will get a few wrinkled patches where the varnish went on a bit too thick.
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post #5 of 8 Old 03-17-2013 Thread Starter
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That's unfortunate. I'll do it the old fashioned way. Thanks.

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post #6 of 8 Old 03-17-2013
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Re: How to hot coat cetol?

RM, the correct term is "multi-coating".

If you look around there are varnishes on the market (usually the urethane type) that can be multi-coated. Uroxsys is but one..

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post #7 of 8 Old 03-17-2013
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Re: How to hot coat cetol?

Step away from the Cetol and nobody gets hurt.

hot coating cetol looks like crap and it wears poorly.
Taking days to apply cetol ensures the same result.

In my overblown and opinionated opinion, if you have so little time available and apparently so little concern for the wood on your pride and joy that you are not only using cetol but looking for ways to get it over with more quickly, just cut out the middleman and do nothing at all.
8-10 coats of proper as-Herreshoff-and-Stephens-and-Neptune intended varnish thinned and sanded as per a tried and tested schedule will take you 2-3 hours a day over 5-6 days, applying two thin coats a day for the first three days and a coat a day after that until you have 8 coats...
and you won't have to touch it for a couple of years.
You can invest 16-18 hours every other year to get results that make you proud or spend 6-8 hours a year, every year, just to get the job done.
I'd rather invest my time than spend it.
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post #8 of 8 Old 03-17-2013
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Re: How to hot coat cetol?

I used Cetol on my last boat, and was very satisfied with the look and finish. I wasn't able to bring everything home, so a good chunk of the work had to be done aboard. Let me tell you, it was a heck of a lot nicer to be able to put the Cetol on than to deal with varnish. That being said, when I varnished the tiller, it looked AMAZING. I was able to bring that home, and was able to get many coats on it. I was thrilled with how that came out. But I just couldn't see myself varnishing all the teak surfaces inside and out.

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