Step 4. Apply the Paint
Using a paintbrush, apply polyurethane enamel paint on all sides and edges of every plywood piece. Allow the paint to dry, following the manufacturer’s recommended dry time. Add a second coat, if necessary.
Tip: Polyurethane enamel paint is best for coating surfaces that endure high traffic and humidity, such as in bathrooms. Enamels are available in numerous colors and several different sheens, or levels of glossiness. The higher the sheen, the more water-resistant and washable the painted surface will be.