Michael, I repair such scratches all the time with French polishing. I gave a seminar on it in Seattle. It is quite easy to do. It works so well for this kind of thing because it only adds a thin layer of shellac and there is no risk as there is with sanding and polishing. The beauty of French polishing is it fills the scratches selectively without building up finish on the non-scratched area. That is, it fills the valleys up to the top of the hills leaving a glass-smooth surface. It is also very safe and I often do it in the clients music room over an Oriental carpet with no concern of odor or spills or overspray. I use Konig Special French polish from www.konignorthamerica.com. Or google Konig french polish. They also have videos. The alternate quick and dirty solution is to spray the fall board with several coats of clear lacquer. Then fine sand and polish the new lacquer without the danger of damaging the black underneath. I find that polishing lacquer to a high polish is not that easy. I would sand it with 400 and then 600 paper with water, dry, and then give a final coat of spray that lays down flat. Do that outside if possible. The fumes are strong. French polish still comes out better and is three times as fast. There is no waiting for lacquer to dry and no sanding. See my web site to see French polishing before, during, and after. www.classicpianodoc.com Doug Gregg Classic piano Doc Southold, NY Message: 1 Date: Thu, 24 Jan 2013 17:00:01 -0800 (PST) From: MICHAEL MEZHINSKY <pghpianotuning at yahoo.com> To: "pianotech at ptg.or" <pianotech at ptg.org> Subject: [pianotech] How to remove scratches Message-ID: <1359075601.24779.YahooMailNeo at web160205.mail.bf1.yahoo.com> Content-Type: text/plain; charset="iso-8859-1" Hello, Can anyone suggest how?to remove scratches on the black lacquer finish fall board on a 1932 piano or make it look better? The picture is attached. Thanks for your help. Michael Mezhinsky RPT -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://www.moypiano.com/ptg/pianotech.php/attachments/20130124/dfc8a452/attachment-0001.htm> -------------- next part -------------- A non-text attachment was scrubbed... Name: mail[1].jpg Type: image/jpeg Size: 7010 bytes Desc: not available URL: <https://www.moypiano.com/ptg/pianotech.php/attachments/20130124/dfc8a452/attachment-0001.jpg>
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