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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