Action cleaning - English Walnut shells

John Ross piano.tech@ns.sympatico.ca
Tue, 19 Jan 1999 20:53:23 -0400


Hi Jim,
I would like to know a source for the ground walnut shells. All I have
been able to find is fine sand.
Regards,
John M. Ross

Jim Coleman, Sr. wrote:
> 
> Hi to those interested in action cleaning
> 
> My son Jim Jr. for several years has been "sand blasting" with finely ground
> walnut shells. This does not leave any grit in the keybushings. The only
> caution to be observed is that you should not linger too long in any one
> spot because it will erode the softer parts of wood. This will make the
> action brackets look new again. The keys, action parts and hammers will be
> clean after this treatment. If you need to clean the softer flat damper
> felts, it is better to decrease the air pressure of the blaster. Regular
> pressure works OK on the harder wedge damper felts. It will remove the
> marks of the dirty or rusty strings.
> 
> Jim Coleman, Sr.


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