Containing mineral oil and extreme pressure additives, semisynthetic KoolRite 2365 coolant can be used with cast iron, all steels, and nonferrous metals with exception of magnesium. It is especially suited for use on aluminum. In addition to controlling foam from high pressure chip removal systems, coolant will not stain nonferrous metals and is formulated with JTM BioArmor Technology, making it resistant to bacterial and fungal growth, yielding long sump life.