How to Paint Your Fiberglass Door with Exterior Oil-Based Paint ？

Fiberglass doors are a durable and low-maintenance alternative to traditional steel or wood doors. While they resist rot, rust, and moisture damage, they still require periodic repainting to counteract sun fading and refresh their appearance. Using a high-quality exterior oil-based paint designed for long-lasting performance can revitalize your door and enhance your entryway. Here’s a step-by-step guide to painting your fiberglass door:

1. Remove the Door from the Hinges
Start by removing the door from its hinges. Use a center punch tool to place under the hinge pins and tap it with a hammer to push the pins up and out. Repeat this process for all the hinges and carefully lift the door off the hinges. Place the door on a pair of sawhorses to make painting easier.

2. Remove All Hardware
Unscrew all hardware from the door, including the hinge plates. If applicable, slide out the weatherstripping from the grooves along the bottom and sides of the door. Store these parts safely for reinstallation later.

3. Sand the Door Surface
Lightly sand the surface of the door with fine-grit sandpaper. If the door has a texture, sand along the direction of the grain. For smooth doors, sand in a single direction. This step helps the paint adhere better and ensures a smoother finish.

4. Clean the Door
Wipe the door with a sponge or cloth dampened with a solution of water and a small amount of dish soap. This removes any dirt and residue.

5. Remove Grease and Dirt
Apply a small amount of mineral spirits to a clean cloth and use it to remove any remaining grease, dirt, or grime from the door surface.

6. Dry the Door
Use a soft, clean, lint-free cloth to thoroughly dry the door after cleaning. Ensure the surface is completely dry before proceeding.

7. Mask Off Windows and Lights
Use blue painter’s tape to cover any windows or lights on the door. This will protect these areas from paint splatters and ensure a clean finish.

8. Apply the Paint
Thoroughly stir your oil-based paint and apply it with a brush using smooth, even strokes. Start with the panels and molding, then move to the top, bottom, and edges of the door. Make sure to cover all areas uniformly.

9. Allow the Paint to Dry
Let the door dry completely before applying a second coat of paint. Once the first coat is dry, flip the door onto the sawhorses and paint the other side with two coats.

10. Reinstall Hardware and Weatherstripping
After the paint is fully dry, reattach all hardware and weatherstripping. Have a friend help hold the door in place while you push the hinge pins back into place to rehang it. Remove any remaining painter’s tape.

By following these steps, you’ll give your fiberglass door a fresh, new look while protecting it from the elements. For more information on fiberglass doors and other home improvement tips, visit Ambfast Corp.