How to Fix Latex Paint Over Enamel

Sand the entire surface using 100-grit sandpaper to remove the peeling paint. Use a palm sander, sanding block or sand small areas by hand. Oil-based paint seeps into the surfaces of wood and drywall. At this point you are removing the peeling or blistering surface paint. Some paint will remain on the surface, which you will cover with a primer to make sure the new latex paint sticks and the oil-based paint doesn't bleed through. The sandpaper will also prepare the surface by giving it a rough texture for better adhesion.

Wash the area using trisodium phosphate on a sponge to remove all the paint residue and sanding dust. Rinse with plain water and dry thoroughly before proceeding.

Apply a primer to the surface using a sponge roller brush or bristle paintbrush. Sponge rollers allow you to quickly paint flat, even surfaces while bristle brushes work the primer into corners and other tight spots. Use a primer designed for covering oil-based paint. These primers are adhesion primers and are designed to stick to any surface. Often, they are made from acrylic latex. Look for primers that say they will cover oil-based paint or slick surfaces. This ensures that any remaining oil-based paint is covered and won't bleed through to the new paint. Allow the primer to cure according to the manufacturer's instructions and then apply a second coat for best results.

Paint 100-percent acrylic paint over the primer once it has finished curing. As with the primer, use sponge rollers or bristle brushes depending on the type of surface. Allow it to cure and apply a second coat. Acrylic paint is a high-quality latex paint that has a strong bond and dense color. It is a good choice in problem areas.