It’s simple, we fuse it. Washington Mills is one of the world's largest producers of abrasive grain and electro fused mineral products for abrasive, refractory, ceramic, metallurgical and a wide range of general industrial applications. We offer an exceptionally wide line of standard abrasive grain and specialty electro-fused minerals from our worldwide multi-plant locations. Washington Mills manufactures synthetic fused materials through the electric arc fusion process, or Acheson synthesis technology, to produce high-quality grains and powders for a diverse range of applications. Controlling the furnacing of the raw material ensures the material has optimal chemistry, porosity and crystal size.