Do You Have to Finish Unfinished Cabinets Before Painting Them?

Whether you're refreshing the look of your existing cabinets or transforming a new set of unfinished cabinets, painting is a great way to achieve a custom look that matches your personal style and décor. However, the process of painting unfinished cabinets differs slightly from painting finished cabinets, and one crucial step is understanding whether or not you need to finish them before painting.

Why Is It Important to Finish Unfinished Cabinets before Painting?

Unfinished cabinets lack a protective layer, making them more susceptible to moisture damage, stains, and wear and tear. Applying a finish before painting creates a barrier that protects the wood from these elements, ensuring the longevity of your painted cabinets.

Moreover, finishing unfinished cabinets before painting helps the paint adhere better to the surface. Paint tends to absorb into unfinished wood, resulting in uneven coverage and a less durable finish. Applying a finish provides a smooth, uniform surface for the paint to adhere to, leading to a more professional and long-lasting result.

What Are the Different Types of Finishes for Unfinished Cabinets?

There are several types of finishes you can apply to unfinished cabinets before painting:

Polyurethane: A durable, water-resistant finish that provides a protective coating. It is available in various sheens, from matte to high-gloss.
Lacquer: A fast-drying finish that offers a hard, glossy surface. It is known for its clarity and resistance to yellowing.
Shellac: A traditional finish made from a natural resin. It is easy to apply and provides a warm, amber tint to the wood.
Varnish: A versatile finish that offers protection and a glossy sheen. It is often used for outdoor applications due to its resistance to moisture and UV rays.

Step-by-Step Guide to Finishing Unfinished Cabinets before Painting

Sand the Cabinets: Use fine-grit sandpaper to lightly sand the surface of the cabinets. This will help remove any rough edges and create a smooth surface for the finish.
Clean the Cabinets: Remove dust and debris from the cabinets using a damp cloth. Allow them to dry completely before proceeding.
Apply the Finish: Apply a thin, even coat of the chosen finish using a brush or roller. Follow the manufacturer's instructions for application and drying time.
Sand Lightly: Once the finish has dried completely, lightly sand the surface again with fine-grit sandpaper. This will create a smooth surface for the paint to adhere to.
Apply Primer: Apply a coat of primer to the cabinets. Primer helps the paint adhere better to the surface and provides a uniform base color.
Paint the Cabinets: Apply two to three coats of paint, allowing each coat to dry completely before applying the next.

Additional Tips for Painting Unfinished Cabinets

Use a high-quality paint specifically designed for cabinets.
Apply thin, even coats of paint to avoid drips and runs.
Allow each coat of paint to dry completely before applying the next.
Use painter's tape to create clean lines and prevent paint from bleeding into unwanted areas.
Consider using a spray gun for a more professional finish.
Protect the surrounding area from paint splatters by covering it with drop cloths or plastic.

Conclusion

Finishing unfinished cabinets before painting is a crucial step that ensures the longevity and durability of your painted cabinets. By applying a suitable finish, you create a protective barrier against moisture damage, stains, and wear and tear. Additionally, it provides a smooth, uniform surface for the paint to adhere to, resulting in a more professional and long-lasting finish. With proper preparation and technique, you can achieve a stunning painted finish on your unfinished cabinets that will enhance the look of your kitchen or bathroom for years to come.