Order high quality fepa graded boron carbide powders online here! pricing is per lb, with a 5 lb minimum order. boron caribde sandblasting abrasive grits and polishing powders are fepa classified, single classification. 3mu2122 boron carbide abrasive powders are made of high-purity boron carbide, which is sometimes called u201cblack diamondu201d for its hardness and chemical resistance. 3m boron carbide abrasive powders are suitable for lapping and sawing of a wide variety of technical ceramics (alumina, zirconia or silicon carbide), tungsten carbide, sapphire, synthetic gemstones, and u2026 Thursday, april 23, 2015. glass blasting media is quickly becoming a direct replacement for many sandblasting abrasives. made from crushed recycled glass bottles it is silica free and great for the environment. we have receently added new locations and can now economically ship into idaho and wyoming, as well as minnesota, iowa, indiana, illinois. All india metal corporation is suppliers of boron carbide abrasive powder, offer a huge selection of powder inventory for great deals. a potential supplier of boron carbide nano powder in india in various size.