Boaz, Try micro-fine teflon powder on the keybed. Great on knuckles. I haven't used graphite in a long time for anything...well bridge tops... Bill Spurlock has it... Google his website David I. ----- Original message ----------------------------------------> From: Boaz Kirschenbaum <artisanpiano@gmail.com> To: David Vanderhoofven <david@vanderpiano.com>, <caut@ptg.org> Received: Sat, 13 Nov 2004 10:54:50 -0500 Subject: Re: McLube on keybeds (Was Re: [CAUT] Teaching Piano Tuning) >David, >I was specifically referring to McLube 444L (the liquid stuff in the >can, from Pianotek). I experienced problems with its use as a keybed >lubricant, especially where the back corners of the keyframe meet the >keybed. It can cause a squeak at unacorda shift later on, i.e., after >a few days or weeks. >In my opinion McLube 444L is to be used for unlike materials, such as >keypins and keybushings, and not for like materials, such as wood to >wood. >I usually didn't need to lubricate the keybed at all in most cases. >The general keyframe fitting and planing of the keyframe is done by >hand at the factory. At the final prep, it was more a matter of >fine-tuning the keyframe bedding, especially at the season/environment >change, re-checking the keyblock fit, and making sure that the shift >setting was correct. >In some cases if lubrication was needed I used a graphite stick at the >stud contacts, burnished to a sheen with an old hammer. >-Boaz >On Fri, 12 Nov 2004 09:01:36 -0600, David Vanderhoofven ><david@vanderpiano.com> wrote: >> Hi Boaz, >> >> I appreciate your knowledge and experience and am enjoying reading your emails. >> >> You mentioned that a Steinway piano should NOT have McLube on the >> keybed? I have found McLube to be wonderful for lubricating keyframes and >> keybeds, because it eliminates squeaks. I respect your opinion, but I am >> wondering why you do not like McLube on keybeds. Is it harmful? Or are >> there any problems with the use of McLube? What would you suggest as an >> alternative to McLube on keybeds? >> >> Thanks! >> David Vanderhoofven >> Joplin, MO >> >> At 08:45 AM 11/9/2004, you wrote: >> >---------- Forwarded message ---------- >> >From: Boaz Kirschenbaum <artisanpiano@gmail.com> >> >Date: Tue, 9 Nov 2004 09:35:46 -0500 >> >Subject: Re: [CAUT] Teaching Piano Tuning >> >To: Fred Sturm <fssturm@unm.edu> >> > >> >If someone is spending that kind of >> >money, they shouldn't have a squeaking pitman, a knocking keyblock, or >> >McLube on the key bed! >> >> >_______________________________________________ >caut list info: https://www.moypiano.com/resources/#archives
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