Things You'll Need
220-grit sandpaper block or palm sander with 220-grit sandpaper
Acrylic latex paint
Natural bristle paintbrush
Foam paintbrush or rollers
Wipe-on polyurethane varnish
PVC is a useful building material, but its lack of color can put a big strain on your creativity. White is widely available, but colored PVC can eat into your wallet. If you want to add color to your PVC boards but want to save money, paint with acrylic latex paint. With a free day and primer made for plastics, it's a simple process.
Wipe down the surface of the PVC with a clean rag soaked in mix of hot water and mild dish detergent to remove all dirt and oil that could damage the paint's final finish. Dry the PVC boards with a new clean, dry rag.
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Sand the boards with 220-grit sandpaper or a sanding block to create a textured surface for the paint and primer.
Wipe the PVC with a tack cloth to get rid of particles or dirt created from sanding.
Apply a thin coat of AquaLoc (the primer/sealer made for plastics) to the PVC with a stiff natural bristle brush. Let the boards dry for about an hour, and then apply a second coat with a foam brush in long, even strokes. Let the second coat dry fully, which takes one or two hours.
Apply a coat of acrylic latex paint in your desired color/finish with a foam brush, roller or electric paint sprayer. You may need to apply multiple coats.
If the PVC boards are for a piece of furniture or placed in an area that will see a lot of wear and tear, apply a thin coat of a wipe-on polyurethane varnish to the boards with a clean rag. Follow the directions specified on your particular brand of varnish.
Use a electric sprayer or spray paint if you can for the cleanest, most professional looking application of the paint.
All paints and varnishes have fumes that can be harmful to your lungs and possibly to your head. Apply all paints and varnishes in well-ventilated areas or outdoors.