Applying one or two coats of polyurethane to a painted surface is a good way to protect the paint. … Oil-based polyurethane levels out to a smoother finish, although it takes several hours longer to dry. You can apply polyurethane over any type of paint, as long as it’s clean and has been properly prepared.

Can you put clear coat over paint?

Latex paint can be painted over with a clear coat. When you apply a clear coat over latex paint, you can seal and protect the surface. Additionally, latex paint should be applied with a clear coat to protect the area. Your surface will have a glossy, protective finish that is impressive and lustrous.

Can you use Polycrylic over paint?

Can Polycrylic® Protective Finish be used over paint and wall coverings? Yes. Polycrylic® may be applied over latex and oil-based paints and well-bonded wall coverings. Because slight ambering may occur, spot test on an inconspicuous area and let dry to ensure satisfactory results.