SULFEX® RED, distributed by Washington Mills, is prepared from carefully selected pure monocrystalic iron pyrites (FeS2). SULFEX® RED consists of finely grained Pyrite crystal splinters, which increases the thermal conductivity, the tensile strength, and the porosity of resin-bonded grinding wheels and cut off wheels.  SULFEX® RED improves durability and performance of organic bonded abrasives by reducing the temperature in the contact zone or the work piece and cut off / grinding wheel.



SULFEX® RED is used as a grinding-active filler in resin-bonded grinding wheels and cut off wheels, brake linings, etc. It can be used alone or in combination with other active fillers in organic bonded abrasives.