key bushing miracle stuff

[Thomas Cole]

Tom

My wife attended a key rebushing class at a convention and, of course, 
was eager to ply her new-found skill. The first piano to come into the 
shop after that was a hand-me-down old upright that needed everything, 
so I set her to work replacing the bushings.

The front rail job was perfect but all of the balance rail bushings fell 
out. I tried soaking the mortises with acetone but no amount of cleaning 
seemed to cure the wood of repelling the hide glue. I suspect silicone 
was the culprit.

Not her fault, of course, but that is one horse she won't get back on again.

Silicone is forever.

Tom Cole

Tom Sivak wrote:

>List
>
>It isn't often that I can contribute anything that I
>think worthy of you all.   Perhaps you all know about
>this VS Profelt stuff, but it's new to me and it has
>saved me two bushing jobs so far.
>
>I had a Kawai vertical that needed new balance rail
>key bushings, badly.  Sharps especially rocked back
>and forth, big time.   I removed the keys, applied VS
>Profelt to the bushings, inserted my Spurlock bushing
>cauls and let them set over night.   Next day, the key
>bushings were perfect.  There was not even any
>variation from one to the next.  They were all
>perfect.  
>
>I spoke with Bob at Pianotech and he said that it
>relaxes the felt and also contains silicone which
>lubricates the felt.  He said he had a set of key
>bushings in which some were too tight, and some were
>too loose, and after an application of this stuff,
>they were all PERFECT.
>
>I also used VS Profelt on damper rail guide bushings
>on a M&H AA in which the dampers were bobbling side to
>side, forward to back, like little wooden
>jacks-in-the-box.   I applied the liquid, put in
>number 8 bridge pins for a "caul", and the next day,
>voila!  Like new.  
>
>This stuff saved me hours of work.   Not only are the
>results great, but I can now make improvements on some
>of my clients' pianos where money is an issue.  I
>don't even bring up key bushing replacement on some
>pianos even if it needs it desperately.   Now, I can
>suggest upgrading the key bushing situation at a more
>reasonable cost.  
>
>Tom Sivak
>Chicago
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