Wessell, Nickel and Gross is now selling a hard-anodised aluminum front rail pin. It is naturally lubricious and you can feel the lower friction by pushing a key to the side while moving it down and up on the pin. I wonder what effect this will have on bushing wear. Ed Sutton ----- Original Message ----- From: "David C. Stanwood" <stanwood at tiac.net> To: <pianotech at ptg.org> Sent: Monday, February 02, 2009 11:31 AM Subject: Re: [pianotech] bushing cloth wear, (was Best Bushing) > An easy test for wool content is to put a match to a piece of cloth and > set it afire then remove the match... if the cloth keeps burning after the > match is removed then it's not pure wool which would account for cloth > wearing out fast.. Baldwin had a huge run of Chinese pianos not too long > ago. The bushing cloth looked great but it was all synthetic.... It > really wears out fast! We have to be vigilant for adulteration of wool > cloth! 100% wool is the only way for pianos! Viva la Sheep! > > D Stanwood > >>Hi Ed >> Join the club >> We have been greatly frustrated by this but it hasn't been just the >> recent past. Trix has done fastidious bushing jobs for years. We pre-size >> the mortises after the old felt comes out to stabilize it & we have on >> many sets sized them with alcohol and water to make a perfect & tight fit >> with as little play as we can get by with & yet we find bushings blown >> out as fast as Indy race car tire. Keys literally clacking against each >> other. I thought it may just be churches & those players using lots of >> glissando players, but not so. >> So we are in the process of switching to using leather in the front >> mortise of high use applications despite the maintenance issues you site. >> I have seen leather key busing's 100 years old that fit perfectly & >> aren't noisy. >> SO to the collective wisdom here I ask ...what's the answer? >> After all a key mortise is only going to tolerate so much diddling with >> before it becomes out of spec & requiring serious & expensive repair or >> replacement. >> Dale Erwin >> >> >>From: A440A at aol.com >> >>Subject: [pianotech] bushing cloth wear, (was Best Bushing) >> >>Greetings, >> >><< We want a very firm, yet resilient >> >>surface against the keypin, not a hard unforgiving one. We're going for >> >>adhesion here, and not much "penetration" into the cloth is necessary. >> >> >> I agree. And I wonder what is going on with the cloth, these days. I >>rebushed 6 grands 18 months ago with the BU series of cloth from PianoTek. >>I >>took >>care to use as little glue as possible, and all of them required just a >>little easing when first installed, and I left the keys with as little >>free play >>as >>possible. They were totally worn out, with keys hitting keys, within the >>year! Front rails worse than balance. >> I have never had wear that fast with the older, two color cloth that >>Steinway used to sell. This new version seems softer and spongier, too. >>Half >>of >>these pianos were lubed with Teflon powder, the other with McLube. The >>pins >>were all polished, too. None of it made any difference, they are all >>totally >>shot. These pianos are in a very high use application, but I have been >>gettting >>4 years out of keybushing with the Steinway and/or Fletcher-Newman >>"boxcloth" >>supplies I used for many years. Anybody else have these problems? I >>didn't >>iron the felt, but then again, I never have before, and the other cloth >>certainly performed better. Regards, >> >> >>Ed Foote RPT >><http://www.uk-piano.org/edfoote/index.html>http://www.uk-piano.org/edfoote/index.html >><http://www.uk-piano.org/edfoote/well_tempered_piano.html>www.uk-piano.org/edfoote/well_tempered_piano.html >> <BR><BR><BR>**************<BR>A Good Credit Score is 700 or Above. See >> yours >>in just 2 easy steps! >>(<http://pr.atwola.com/promoclk/100000075x1215855013x1201028747/aol?redir=http://www.freecreditreport.com/pm/default.aspx?sc=668072%26h>http://pr.atwola.com/promoclk/100000075x1215855013x1201028747/aol?redir=http://www.freecreditreport.com/pm/default.aspx?sc=668072%26h >>mpgID=62%26bcd=DecemailfooterNO62)</HTML> >> >> >> >> >>You can't always choose whom you love, but you can choose how to find >>them. <http://personals.aol.com/?ncid=emlcntuslove00000001>Start with AOL >>Personals. > > > >
This PTG archive page provided courtesy of Moy Piano Service, LLC