This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment Dale, I remember was on a Petrof, and the sides where colored artificially. The edge of the finish where damaged, and the low sides of the dampers shows marks, so I had to black them again with dye. I don't recall the wall paper remover have any acetic acid in, only wetting agent (?) . The problem in fact was that the damper wood was softer than expected on this piano. I had marks on key bushings too when using the wall paper remover method. I guess that there are number of methods that apply well on US pianos because of the material used, but can't be always used on pianos from other provenance . I was not aware of that in time, now I am more cautious generally. Probably a little 70% alcohol mixed can soften the glue and fasten the process, I used this lately for taking off grand knuckle and the pliers where very efficient immediately, with no part breakage as when used dry. Regards Isaac OLEG -----Message d'origine----- De : owner-pianotech@ptg.org [mailto:owner-pianotech@ptg.org]De la part de Erwinspiano@AOL.COM Envoye : vendredi 29 mars 2002 04:20 A : pianotech@ptg.org Objet : Re: You're never too good In a message dated 3/28/2002 3:52:54 PM Pacific Standard Time, oleg-i@wanadoo.fr writes: Isaac We have used your method with some wall paper remover but we always seem to have some problem with the old finish especially on the ends of the damper block. Frequently we must refinish which is time costly.After reading this post next time I will try just hot water. We had specially made metal trays made that we place side by side . The dampers sit astride the trays ,one damper in each tray and then the hot water and some wall paper remover is poured in but I,m now thinking that the acidic acid is the problem with the finish. I'll find out soon enough. you could try the same thing and post back. I think the stains are apparent only on dampers that aren't dyed black but are just the natural wood color. Is that what you meant by stains? <<<<<<<<<<<<,Dale Erwin>..... Hello , The only time I used water (and a very little wall paper remover) on grand damper felts, the water goes in the wood and leave ugly marks on the sides (and I did not even install them in Tepperware or a recipe, only soaked the felt, put the heads back on a tray and wait 30 min). So I stick with the chiseling method, then sand the remaining glue flat, it is fast and clean, just I take care to sand level. Regards Isaac OLEG ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/55/6f/ec/b4/attachment.htm ---------------------- multipart/alternative attachment--
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