How to Seal Painted Wood
A beautifully painted wood surface can be quickly ruined if it is not properly protected. Painted wood furniture is especially susceptible to nicks, scratches, and water rings. A clear polyurethane topcoat can seal your painted wood surfaces and protect them from damage if properly applied. Follow these steps to seal painted wood with a clear polyurethane coating. Does this Spark an idea?
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Things You'll Need
- Drop Cloths
- Rubber Gloves
- Clean Cloth
- Clear Polyurethane
- Paint Tray
- Paint Brush
- Fine-Grit Sandpaper
Instructions
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1
Wait at least four to seven days after painting the wood before you apply a sealer.
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2
Protect your floor with drop cloths, and protect your hands with rubber gloves.
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3
Wipe the newly painted surface lightly with a damp cloth to remove dust. Allow the surface to dry completely.
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4
Apply a thin coat of polyurethane with long overlapping strokes of the brush.
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5
Allow the thin coat of polyurethane to dry according to the product instructions.
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6
Lightly sand the polyurethane surface with fine-grit sandpaper (at least 220 grit) to remove any tiny bumps or imperfections.
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7
Wipe the surface with a damp cloth to remove sanding residue and allow the surface to dry completely.
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8
Repeat the application process (steps four through seven) until two to three coats of polyurethane are applied.
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Tips & Warnings
If you are sealing painted wood that will be outdoors, make sure you use a product designed to endure the outdoor environment.
Polyurethane is available in several finishes. Choose a matte finish for no gloss, or choose a semi-gloss or gloss to add shine.
Polyurethane is also available in spray cans. If you are sealing an uneven surface or painted wood with a lot of detail, spray polyurethane is a great choice. Remember to apply thin coats and sand in between applications.
Never apply polyurethane without proper ventilation.
