Daniel Semler on sun 17 apr 05
Hi All,
I recently set up a bench grinder with a 120 grit flapwheel. Certainly smooths
the bottom of pieces. I noticed the following problem though. When using it on
either white stonewares or porcelains the sanded area turns grey to black, as
though its being slightly burned, or some slightly burned residue from the
flapwheel is being left behind. It comes off with Bar Keepers Friend easily
enough, but I was wondering if other people have seen this and if there is a
way to avoid it happening.
thanx
D
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