Howdy all, I have a 20 year old Kawai UST-7 that I am interested in selling. Before I do, however, I would like to pretty it up. It has multiple small scratches and other various marks which I will fill in/rub out, etc, (former school piano). The original finish does not appear to be lacquer nor polyester. I am suspecting some sort of polyurethane hybrid. It is somewhat harder than lacquer but not as hard as poly. (Don, perhaps you could take a guess at what this is?) I thought it might be a worth while experiment to put a coat of polyurethane on it followed by sanding and then rubbing down with rotten stone to a satin finish. I have never done anything like this on a piano before but it seems like it might work here. Another reason I thought this could be good is because the thick filling properties of polyeurthane would probably fill and/or hide many of the blemishes. This is of course assuming that the present finish, whatever it may be, will accept a fresh urathane finish on top. Obviously the only way to test this is to apply a coat to a small spot somewhere. Does anyone have an opinion on this or has used polyurethane on a piano before? Note: This is a used studio piano that I want to make look pretty in a hurry. I DO NOT want to strip down and refinish it! Thanks, Rob Goodale, RPT Las Vegas, NV
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