How to repair a crack in the high-gloss finish in wood

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Whether it's on furniture or wood trim, a crack can ruin the appearance of a high-gloss finish. Repair cracks promptly to keep the problem from getting worse, particularly in exterior woodwork that is exposed to rain and moisture. Repairing a crack in high-gloss woodwork may seem daunting, but you should be able to achieve a satisfactory finish by using an epoxy wood filler and the original paint or varnish.

Remove any debris from the crack by sanding it with a fine 80- to 100-grit sandpaper. Also lightly sand any rough areas around the crack.

Clean dust from the crack by wiping it with a water-dampened clean cloth. Let the wood dry.

Apply a thin layer of epoxy wood filler to the crack with a putty knife. Choose a filler that matches the colour of the wood. Feather the filler about 2.5 cm (1 inch) beyond the crack to create an even surface. Wait for the filler to dry.

Sand the patched area with a 220-grit sandpaper until the surface is smooth and matches the surrounding woodwork.

Wipe away any final debris or dust from the patched area with a water-dampened cloth.

Mask the unaffected woodwork around the patched area with masking tape. Press the tape firmly into position around the crack.

Paint the patched area with the same oil-based gloss paint as used on the rest of the surface. Paint the patch carefully with a 25 mm (1-inch) paintbrush. Continue to add paint layers to achieve the best colour and gloss match possible with the surrounding wood. Wait for each layer to dry before adding the next one.

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