To paint a baby crib, clean and sand it, fix small defects with wood filler, prime the crib, and apply two coats of baby-safe paint. The supplies you need include rags, sandpaper, paint, wood filler and a nylon-bristle paint brush. You also need water, dry cloths, liquid soap and primer.
Move the crib to a safe work area, and wash it with a mixture of hot water and mild liquid soap. Let the crib dry thoroughly. If old paint remains on the crib, cover it with a wax-based stripper, and scrape off the paint with a putty knife.
Rub the crib with sandpaper, moving in the same direction as the wood grain. Wipe away the sanding debris with a dry cloth. Inspect the crib for gouges and cracks, and dab them with wood filler. Let the filler dry according to the manufacturer's recommendations, sand it lightly, and wipe away the dust.
Apply one coat of primer with a roller or foam brush, and let it dry according to the manufacturer's instructions. Use a nylon-bristle brush to apply one coat of baby-safe paint. Let it dry for four hours, and then apply a second coat. Dry the crib for at least four more hours and then inspect it. When the paint is thoroughly dry, move the crib to its intended location.