Hangsterfer's Laboratories offers Boeing BAC-5008-approved coolants. S-500CF is a water-soluble oil concentrate with antiweld and antiwear compounds for machining ferrous and nonferrous metals, particularly aluminum alloys. Crystal Cut 322 is a full synthetic for machining and grinding all materials, particularly aerospace materials. It is hydrocarbon-free, nonirritating, VOC-compliant and produces no foam.