Step 1
Wash the countertop with a general-purpose cleaner.
Step 2
Sand the entire countertop with 200-grit sandpaper. Use an orbital sander, if desired. Sand until you have a consistently dulled and abraded surface. This will ensure proper adhesion of the new finish. Wipe away all residual sanding dust with a tackcloth.
Step 3
Paint the countertop with melamine primer and a paintbrush. Allow the primer to dry.
Step 4
Sand the primer lightly with 400-grit wet/dry sandpaper and wipe away the dust with a tackcloth.
Step 5
Examine the coat of primer for any areas where the original countertop is showing through. Touch up those areas with primer and a brush as needed.
Step 6
Paint the countertop with melamine paint and a paintbrush, using a color of your choice. Allow the paint to dry.
Step 7
Sand the paint lightly with 400-grit wet/dry sandpaper and wipe away the dust with a tackcloth.
Step 8
Paint the countertop with a second coat of paint and allow the paint to dry.
Step 9
Sand the second coat of paint lightly with 800-grit wet/dry sandpaper and wipe away the dust with a tackcloth.
Step 10
Apply a polyurethane finish that acts as a sealant and protectant, using a paintbrush.