[pianotech] How to remove scratches

[Gregor _]

Doug, that´s interesting. I found the USA website of König and found French Polish. But on the German Site there is no Schellack or French Polish. I attented a class at König about scratch repair with the focus on Polyester, but all other surfaces were tought as well. I don´t remember that they offer French Polish in Germany.
 
How do you use the French Polish? As a quick and dirty method just applying with a bale or do you prepare the surface? What would you do with the fallboard example form Michael?
 
Gregor

------------------------
piano technician - tuner - dealer
Münster, Germany
www.weldert.de

 
> Date: Fri, 25 Jan 2013 11:36:20 -0500
> From: classicpianodoc at gmail.com
> To: pianotech at ptg.org
> Subject: [pianotech]  How to remove scratches
> 
> 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>
 		 	   		  
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://www.moypiano.com/ptg/pianotech.php/attachments/20130126/201cb62b/attachment.htm>