BMC 5307 molding compound is a mineral filled, glass-fiber-reinforced polyester compound suitable for compression, transfer and stuffer injection molding. It is a medium impact material produced in extruded form for ease of handling. Other characteristics are good overall electrical properties and flame resistance. Typical applications include circuit breakers, transformer bobbins and motor end bells. BMC 5307 molding compound is produced in extruded form in a range on industrial colors. It is available in logs 12 inches in length and from 1" to 2 ½" in diameter Within this range, smalle r diameters are supplied as multiple extrusions and weight tolerances are plus or minus5%, up to a maximum of plus or minus 15 grams.