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Joined: Dec 2001
Posts: 4,274
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Joined: Dec 2001
Posts: 4,274 |
Geoff, Originally brush finishes referred to items that were polished using wire brushes leaving a matt finish that consisted of parallel lines. A satin finish could be applied the same way with a finer gauge wire brush, or it could be applied using an abrasive on a wheel. The distinction nowadays seems to be that a brush finish is coarser, and a satin finish is finer with the parallel lines closer.
Sand blasting uses a coarse or fine grit sand to impart a matt finish without lines. Bead blasting uses small glass beads that impart a finer smoother finish than the irregular sharp cornered grains of sand. Some Solingen makers used sand bIasting later in the war, while others used acid baths (pickling) as a preparatory step, but none of them used bead blasting (it hadn�t been invented yet). I hope this helps. FP
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