David writes: << ------ Years ago when I refinished pianos, we used rotten stone to break up the old finish before applying stripper...very rough stuff...don't know why the difference between the two... I have different image of rotten stone. It was powder, a fine pumice, that broke down into finer particles as it was being used, allowing for mirror finishes if you got just the right amount to start wit. Using it was a real art. Ed Foote RPT http://www.uk-piano.org/edfoote/index.html www.uk-piano.org/edfoote/well_tempered_piano.html
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