How Do I Refinish a Wood Look Fiberglass Entry Door?

Refinishing a fiberglass door that only looks like wood is not all that dissimilar to refinishing an actual hardwood door. The only difference is that you would normally sand a hardwood door before refinishing it. Because fiberglass doors don't require sanding, refinishing them is largely a chemical process. If you are at all uncomfortable working with toxic chemicals, such as solvents and polyurethane, this is a job better left to the professionals.

Screwdrivers
Mineral spirits
Clean cloths
Hot soapy water
Gel-type oil stain
Small bucket
Polyurethane
Foam or lamb's wool applicator

Instructions

- 1
  Remove the door from its hinges and take off any hardware, such as the doorknob. Set the hardware aside and place the door in a well-ventilated work space.
- 2
  Strip the original finish using mineral spirits or other finish-stripping solvent. Wipe the solvent on the door with a clean cloth and allow the solvent to soak for about five minutes before wiping the door clean. Apply more solvent as necessary.
- 3
  Wash the door with hot, soapy water and a fresh cloth. Rinse the door thoroughly and allow it to dry. Prop it up and let it sit at an angle to help it dry faster.
- 4
  Rub a gel-type oil stain into the grain of the fiberglass with a clean cloth. Since this is a wood-look door, it will have its own grain. Always work with the grain when applying stain and sealers. Wipe away the excess stain with a clean cloth.
- 5
  Let the stain dry into the fiberglass. Once the stain is completely dry, you can apply a protective topcoat, such as polyurethane. Mix the polyurethane carefully, then pour a small amount in a bucket.
- 6
  Spread the polyurethane over the fiberglass door with a foam or lamb's wool applicator. As with the stain, the polyurethane must be applied with the grain. Allow the polyurethane to dry, then apply a second coat in the same fashion before reassembling the door.

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