Best choice of antifoling for new barrier coat - SailNet Community

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  #1  
Old 06-25-2013
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Best choice of antifoling for new barrier coat

I've applied 2 of 4 eventual coats of Interlux 2000e over clean gelcoat. It looks freakin' awesome after seeing a patchwork of epoxy repairs for so long.

I'm researching the best choice of antifouling for the hot-tie-in-coat.

Usage will be in Gulf of Mexico, year round submersion.

My plan is to use Interlux Micron CSC.

So my question for you: Can you think of any reason(s) not to use Interlux Micron CSC?
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Old 06-25-2013
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Re: Best choice of antifoling for new barrier coat

Micron is good if you sail regularly but it's longevity is limited to 1-2 seasons for a standard 2 coat application. Being semi-ablative it is more prone to washing off than a hard anti-fouling paint; water motion would be higher if you are moored so you might expect lower performance in that scenario.

Personally for tropical water conditions and/or longevity I'd be more inclined to use a hard antifouling like Interlux Ultra (~70% copper solids). It won't roll on quite as smooth as the Micron but if you are not racing the boat it won't make much difference anyway. My last haulout was in 2012; the boat was in the water for 5 years when the diver said it was getting close to needing a haulout. Performance of the Ultra was excellent for me; so I re-applied it.

If it were me I'd probably go the extra mile on the barrier coat paint and put 6 coats on. When I did mine in straight epoxy I put 5 coats of epoxy and one coat of Pettit barrier coat to tie to the bottom paint.
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Old 06-27-2013
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Re: Best choice of antifoling for new barrier coat

Thank you!
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