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Re: interior paint question
A high quality gloss or semigloss enamel will work, while flat or eggshell paints will mildew more easily. Some exterior paints used to have nasty additives in them to keep the mold/mildew at bay, and you don't want to use them inside (even when dry they release small amounts of toxins into the air). I don't think that this is the case anymore. But, you might want to read the label carefully. Bath/kitchen-grade enamels work well. There are some oil-based enamels on the market that clean up like latex paints. These use some sort of emulsion/micro-encapsulation mojo that doesn't release the oil until the paint starts to dry. Very cool stuff. It goes on more or less like latex, but looks like oil-based enamel when dry.
Whatever you use, make sure you scrub the surface with TSP. Scrub the Bejezzus out of it, rinse it, and scrub it again. Wipe it down with acetone or MEK right before you paint. Fiberglass resins have a wax mixed in with them that rises to the surface as it cures (sometimes it's sprayed on afterwards, but the effect is the same). This wax seals the surface from the air and allows the resin to fully cure (otherwise it will always be a bit tacky). If you don't get ALL of this wax off, the paint will eventually peel. A PO of my boat painted some surfaces without taking the wax off, and now I'm having to deal with it -- not fun.
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