release agent in steel forgings, copper forgings, alloy forgings, aluminum forgings We provide two series of Colloidal Graphit: MD colloidal graphite and S colloidal graphite. The series of MD is used as release agent for metal forging. Such as the release agent in steel forgings, copper forgings, alloy forgings, aluminum forgings. Also can be used as lubricant when squeeze the material; S Series ...