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I'm buying a new kitchen table and dining room table, and I'm trying to keep them from getting scratched from regular use. Can I apply several coats of polyurethane to a brand new table top to make it scratch-proof? Or will that ruin the finish?

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    Depends on the finish it has now. Photos are always good because it makes it more likely you will get an answer that works for your specific situation. – M.Mat Mar 9 '17 at 7:47
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    Most catalyzed finishes will be harder than polyurethane, so you'd be lowering the scratch protection. The traditional trivet and placemat combination would be more effective. – Matthew Gauthier Mar 9 '17 at 13:36
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    Polyurethane is not, itself, scratch-proof, so, no, that will not make it scratch-proof. – Ecnerwal Mar 9 '17 at 15:46
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(See my above comment) Unfinished or stained wood is best for a poly finish. Have you considered getting a clear glass top protector for your tables? 1/4" glass is pretty cheap and you can get it cut to size with a beveled edge. Affix it to table with clear adhesive pads--very cheap and easy to use. Going with glass will be MUCH LESS work and will last forever (pretty much).

glass tabletop protector tt pro

  • And it's but-tugly. The proper way to protect wood furniture IMHO is the same as for wood floors: treat them with proper respect and care. – Carl Witthoft Mar 9 '17 at 18:28

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