Osborn (Jacksonlea) D-18 Tripoli Brown Bar Compound

BROWN: industry standard for primary cutting on iron, steel, aluminum and stainless

Buffing compounds consist of abrasive particles completely surrounded by a binder-carrier.  The type of buffing compound selected is dependent on the class of metal being buffed.  In general, the harder the class of metal being buffed, the harder the class of abrasive that must be used.