Join Date: Aug 2003
Location: Long Island, NY
Thanked 57 Times in 52 Posts
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The 'best' thing would be for you to sand off ALL the paint. Since I / you don't know how much paint is on the bottom, that may not be practical. What I would do is sand until the bottom is smooth, with no barnacles or loose or flaking or chipping paint. Use 40 or 60 grit for this. When all the old paint is gone, go over the bottom with 80 grit. Wipe down with a solvent and then repaint.
There are instructions for this on the major paint vendors (Interlux, Pettitt, etc.) web sites.
Deep Blue C, 2002 C&C 110
Mt. Sinai, NY
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