- 1). Move the item to an outdoor location, or place a large plastic tarp underneath it.
- 2). Sand the entire surface of the item with a 320-grit sandpaper to remove the existing poly finish.
- 3). Sand down areas of imperfections with a 400-grit sandpaper, which is required for deeper scratches and gouges that may go all the way through the poly finish.
- 4). Pour one tbsp. of mineral spirits onto a clean cloth, and wipe down the entire surface of the item to remove all dust particles.
- 5). Apply a new layer of stain, if desired, using a natural bristle paint brush. Use long, even strokes that overlap slightly. When you have completely covered the table, brush it again with the paint brush using light stokes to even out the brush marks.
- 6). Allow the stain to dry for 24 hours.
- 7). Apply a coat of polyurethane on top of the stain using a natural bristle paint brush. Apply it in the same manner as the stain, and allow it to dry for 24 hours.
- 8). Apply additional coats of polyurethane as needed. All items require at least two coats, but additional coats will provide protection against future scratches and gouges.
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