If you want to paint your Formica walls, consider two factors. First, unlike wood and drywall, Formica is non-porous, making it unsuitable for paint adhesion. Second, because Formica is smooth and slick, paint tends to run during the application process. Before you get started, know the proper techniques that will allow you to combat these complications so you can generate an attractive, long-lasting finish.
Cover the flooring beneath the Formica walls with fabric dropcloths.
Clean the Formica walls with soap and a coarse brush. Rinse away all soapy residue, using wet rags. Allow the walls to dry.
Sand the Formica wall to promote paint adhesion, using a palm sander loaded with 120-grit sandpaper. Sand until the Formica feels slightly rough to your fingertips.
Wipe down the Formica wall with a tackcloth.
Apply a thin coat of primer to the wall, using the roller. Smooth the primer, using a paintbrush. Work quickly before the primer begins to dry. Watch closely for sags or runs in the primer and smooth these flaws with the paintbrush.
Wash the brush with water. Allow the Formica to dry for three hours.
Apply two thin coats of paint in the same manner as you did the primer. Allow two hours of dry time between coats.