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post #20 of Old 03-21-2013
Join Date: Mar 2010
Location: SF - South Bay
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Re: New purchase, needs bottom paint, no trailer

Okay, lot of information required to answer a simple question!

To repaint the bottom, the boat needs to be hauled out of the water. it should immediately be pressure washed - if you don't, any marine growth will set like concrete.

You then need to prepare the bottom. This normally means sanding, and in some places repainting. Some repairs may also be needed. One catch is that bottom paint is incredibly toxic, so you will need a special sander that vacuums all the dust, complete body covering (including head/hair), and quality respirator. Your boatyard can probably advise. How long will this take? How fast can you sand! Say 1-2 full days, could be more if you hit problems.

Then, when the bottom is prepped (and any repair work done, like that pesky through-hull) you can paint the bottom. Mask first, then paint. Again, wear protective clothing. Roll on one or two coats - two coats will last longer, but at $250 a gallon for typical bottom paint, you may just put on one coat! Say one day per coat, depending on temperature. (Don't paint in the rain, or in freezing conditions)

Now ask the boatyard pretty please to lift up your boat and then go to lunch. Why? So you can paint those parts you could not reach while it was on blocks!

After lunch - splashdown! you're done!

(kinda a brief summary)
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