What is the best way to refinish a pre finished floors? It's a maple floor with aluminum oxide factory finish. I have heard things like using old paper on the big machine to remove the factory finish top coat for your first pass then treat like an unfinished floors (40/60/100). I also read about paper made specifically for factory finish floors. Since it's maple I'm planning on finishing with a 120 on the big machine. Any advice will be gladly appreciate. Thanks.
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