Rough diamonding removes the stone marks and begins the shinning process. AII brushes and laps used for diamond finishing should be dedicated to each grade of diamond compound. To begin rough diamonding, all surfaces should have at least a #600 stone finish. A 400 to 600 emory finish is best. Diamond steps are the same as stoning. A mold polisher will diamond the deepest detail first and work out to larger surfaces. The largest possible brush is used. Start rough diamonding with #15 diamond compound. In all diamonding the key is to use a minimum of pressure and a brush speed of 2000 to 3000 RPM.
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