Using sandpaper on tuning pins.

[paulrevenkojones at aol.com]

 Good on you, Kent. I'll still go with veneer whenever I have to do a quickie field repair. Maybe I'm just an old fuddy-duddy, but wood with wood feels better to me, and the results are still equivalently relatively short term (aren't all repairs of this type...at least signals of imminent demise?). One man's sandpaper is another man's veneer. :-)

P


 


 

-----Original Message-----
From: Kent Swafford <kswafford at gmail.com>
To: Pianotech List <pianotech at ptg.org>
Sent: Sun, 20 Jul 2008 8:29 pm
Subject: Re: Using sandpaper on tuning pins.










There was a time when I might have agreed with your characterization of sandpaper shims. But not now.




I was a late adopter of CA in pinblocks. I had seen terrible results using epoxy to tighten pins, and I wrongly assumed the worst about CA.




All this to say I used sandpaper shims for a good long time. Every one I put in, I did so with the assumption that it was a stop-gap measure.




You know what? Those sandpaper shims I put in during the early 1990's?mostly on ancient Steinway A's and O's?are all holding nicely. In fact, they tune so nicely that they blend right in and I can't tell which pins have shims and which don't.




After 15 years, I wouldn't call them short-term.







Kent









On Jul 20, 2008, at 6:33 PM, paulrevenkojones at aol.com wrote:



David:

Yes. For how long under bearing and friction pressure? Look at a few pins under a microscope sometime to see the abrasion. Even with the grit side out. It's a useful short-term half-measure if there's nothing else to do in the field. But not a pretty one.?

Paul


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