[pianotech] piano behavior - shrinking with H20 & alcohol

David Skolnik davidskolnik at optonline.net
Mon Nov 21 08:30:56 MST 2011


Tom -
Just curious.  How do you know it's a case for shrinking?  Have you 
tried naptha and exercising the part (taken off the rail)?  I know 
there's the issue of retaining proper alignment, but I wonder what 
your experience has been in controlling the amount of shrinkage.  Do 
you use a pharmaceutical grade alcohol with a controlled water 
content?  I ask because I have not had many occasions to employ the 
method, and not glowing success when I have.  I'm sure it's me.

David Skolnik
Hastings on Hudson, NY



At 09:40 AM 11/21/2011, you wrote:
>
>>  Others such as the Baldwin action on my bench now will need shrinking.
>>
>>Tom Driscoll

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