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Recoating a Polyurethane Wood Flooring Finish

One of the nice things about a polyurethane wood floor finish is that, when it becomes scratched and dull, you can usually recoat it without having to sand the entire floor first. paintbrush-3-inch

Whether or not recoating your floor is a possibility depends on a couple of factors: The existing finish must be polyurethane, and it cannot have a buildup of wax or other chemicals because these will cause the floor to reject the new finish.

You can determine whether your floor qualifies for a recoating by making a patch test on an area about 4 inches square. Though you can do this in an inconspicuous place, such as a closet, it’s better to test along a wall near windows, where cleaners may have collected.

1) Thoroughly clean a small section of flooring using a wood floor cleaner.

2) With fine (120-grit) sandpaper, lightly sand the area, working in line with the wood grain. Wipe away the dust thoroughly.

3) Apply polyurethane floor finish to the patch test area and wait 24 hours.

4) Check the finish. It should be smooth, not rippled or an orange-peel texture. Using a coin, scratch the surface with moderate pressure; the finish shouldn’t flake or peel away.

5) If the surface isn’t smooth or flakes with this moderate scratching, you’ll have to have the floor completely sanded and refinished.

Find a Pre-Screened Local Wood Flooring Refinishing Pro

About Don Vandervort
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Don Vandervort developed his expertise more than 30 years ago as Building Editor for both Sunset Books and Home Magazine. He has written more than 30 home improvement books and countless magazine articles. He appeared regularly on HGTV’s “The Fix,” and served as MSN’s home expert. Don founded HomeTips in 1996.

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