Used for platinum, steel and other hard metals, Fre-Cut abrasive paper by 3M is an excellent pre-polish step. These 8"x10" sheets are coated with 500 grit (20 microns) silicon carbide and sold by the sheet. Use dry only.
|SILICON CARBIDE is a manufactured compound of silicon and carbon that is a very popular abrasive in lapidary and jewelry work due to its relatively low cost and high durability. Its hardness is second only to that of diamond.|