garock
fully equipped rock polisher
Member since February 2006
Posts: 1,168
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Post by garock on Nov 22, 2009 9:44:14 GMT -5
:help: Someone has given me several pounds of tumbling grit and polish in unmarked bags. I am wondering if my logic on what grits they are correct. I know what coarse is because I have some already marked. Should the grain of the grits get smaller as the grit size get goes up (90, 180, 400, 1000, etc) I have five lbs of a grit that is like powder and is dark grey in color. I have tripoli, and I am assuming that the white powder is cerium oxide. Just wondering how to guess the others that are grainy. Thanks for any information.
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Post by Toad on Nov 22, 2009 12:04:49 GMT -5
Without seeing the studd, it sounds like you are guessing right. The grit is finer the larger the number.
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rallyrocks
fully equipped rock polisher
Member since November 2005
Posts: 1,507
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Post by rallyrocks on Nov 22, 2009 12:34:48 GMT -5
Dark gray powder is probably 500 grit silicon carbide, 1000 grit AlOx will be a light gray, the white powder more likely will be Aluminum Oxide - Cerium oxide is usually at least "cream" and more often "peach" to fully orange colored, Chrome oxide is green and Tin oxide is sort of a very light gray/off-white.
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