BT3751 Tripoli Compound. Medium grease. BT3751 is a cut and color compound for non-ferrous metals. Not as aggressive as D14 or D32 Tripoli. Commonly selected to remove sanding marks, belt lines, and grease wheel marks from aluminum, copper, and other non-ferrous metals. Recommended for use with untreated sisal or cloth buffs. Will produce moderate color when used with untreated cloth buffs. Bars are approximately 2" x 2" x 8" and have an average weight of 2.5 pounds. Why is Tripoli Buffing Compound widely used?Tripoli Buffing Compound is widely used due to its effectiveness in cutting down and bringing out a high luster on non-ferrous metals. What does Tripoli Buffing Compound do to non-ferrous metals?Tripoli Buffing Compound has a fast cutting and bright coloring action on non-ferrous metals. What types of metals is Tripoli Buffing Compound suitable for?Tripoli Buffing Compound is suitable for all types of zinc die castings, sheet and cast brass, copper-plated work, and aluminum castings and stampings. What is the purpose of Tripoli Buffing Compound?The purpose of Tripoli Buffing Compound is to cut down and bring out a high luster on non-ferrous metals.