This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment Hello, I have always seen full length ivory key top sold by our German parts sellers as well as 2 parts. (not cheap) 1 piece ivory seem a late process (1960 or later) I seem to recall that all previous instruments where 2 parts ivory, but may be it have nothing to do with age. What is sure is that actual ivory used is very thin, not very white, needing a good 'butter cloth" (what you call cheese cloth) and white glue to look normal. I have seen the use of bone recovering, but the material look grayish and get dirty too easily because of the grain orientation. Mammoth or fossil ivory have been said to me like a second grade material, possibly too brittle. Ivorite from Yamaha is sold as a one part element that is only grossly shaped and need to be cut to size, sanded and rubbed to get its final look, it look interesting, but I notice it have a similar property as real ivory that is the price (around 12$ for one key top, at last 400 $ a complete set . it is thick and robust, but at some moment they had a problem with that material that get grey and look dirty in a few years. they changed for free numerous keyboards (C series) because of that, in fact this problem can be corrected at least temporarily (?) by sanding and a new rubbing (bleach does not work) . Best regards Congratulations for your new job BTW ! Isaac OLEG -----Message d'origine----- De : pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org]De la part de David M. Porritt Envoye : mercredi 4 aout 2004 13:50 A : pianotech@ptg.org Objet : RE: Keytops Yes, I have a client with a Kawai 9' (model 800) piano with one piece ivory. dave __________________________________________ David M. Porritt, RPT Meadows School of the Arts Southern Methodist University Dallas, TX 75275 dporritt@mail.smu.edu ----- Original message ----------------------------------------> From: Matthew Todd <pianotech88@yahoo.com> To: Pianotech <pianotech@ptg.org> Received: Tue, 3 Aug 2004 20:12:07 -0700 (PDT) Subject: Keytops Is it true in EVERY circumstance that all ivory keytops have two parts (head and tail), and plastic tops come in one piece. Or are there other ways to tell the difference? Someone on the list told me that I can never ask a stupid question, so I guess this is a test. I am just starting out, but thanks! Matthew ---------------------------------------------------------------------------- ---- Do you Yahoo!? New and Improved Yahoo! Mail - 100MB free storage! ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/1b/83/51/88/attachment.htm ---------------------- multipart/alternative attachment--
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