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post #27 of Old 04-22-2013
fallard
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Re: Removing Bottom Paint

The problem with frequent cleaning is that you slowly remove some of the paint--assuming its of the ablative variety. After a few seasons of monthly cleanings, you may have gone through a lot of the soft paint.

if it's hard bottom paint, it probably isn't as effective after a season and cleaning it aggressively in the water may help. Certainly you'd at least be removing the fouling.

I've settled on a strategy of a single thin coat of Hydrocoat every year, applied after cleaning--not sanding aggressively--the bottom first. I've got fuzz at the end of the season, but virtually no hard fouling, and it cleans up nicely. Maybe the fresh coat is a key--despite the "multi-season" claims for ablative copolymer bottom paints.
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