Polyvinyl chloride, or PVC, is widely used in construction because it is durable and relatively inexpensive. However, it is a poor candidate for paint adhesion, as it is slick and nonporous. In order to paint PVC plastic, you need to condition its surface by abrading it with sandpaper. In addition, you must apply a base coat before you begin painting, or the finish will eventually flake and peel.
Things You'll Need
- 120-grit sandpaper
- Tack cloth
- Blue painter's tape
- Heavy-duty fabric drop cloth
- Acrylic latex primer
- 2- to 3-inch latex paintbrush
- Acrylic latex paint
Sand the polyvinyl chloride with 120-grit sandpaper until the PVC feels slightly gritty to stimulate surface adhesion.
Wipe the sanded polyvinyl chloride with a tack cloth.
Cover the portions of the polyvinyl chloride surface that you do not want painted with painter's tape. Cover any areas beneath the PVC with fabric drop cloths.
Coat the sanded polyvinyl chloride with an acrylic latex primer, using a paintbrush that is intended for use with latex paints. Dip the brush 1-inch deep into the primer. Do not saturate the brush, as that could lead to runs. Apply the primer in 3- to 6-inch vertical strokes for PVC pipe that runs vertically, and use horizontal strokes if you are painting PVC pipe that runs horizontally. Be sure to smooth drips and runs as you apply the primer. Wait two hours for the primed PVC to dry.
Wash your brush with tap water.
Coat the primed polyvinyl chloride with an acrylic latex paint. Apply paint to the PVC just as you applied the primer. Wait two hours for the painted polyvinyl chloride to dry.