Grains :F 36 46 60 80 70 100 120 Al2O3:95% min Brown fused alumina (BFA) is a type of synthetic abrasive which is made by fusing bauxite, iron oxide and coke at high temperatures in an electric arc furnace. It has a brown color and is used for grinding, polishing, blasting and cutting applications. BFA is known for its high hardness, toughness, and resistance to wear and corrosion. It is also chemically stable and does not react with acids or alkalis. These properties make it a popular abrasive for metalworking, surface preparation, and refractory applications. BFA is available in a range of grit sizes and can be used for both wet and dry blasting. It is commonly used for cleaning and preparing surfaces for painting or coating, removing rust and scale, and shaping and finishing metal parts. In addition to its abrasive properties, BFA is also used as a refractory material in the production of ceramics, glass, and cement. It is also used as a filler in plastics, rubber, and other composites. Package:25kg/bag,1000kg/jumbo bag