ControXid 1642 is a ready-to-use rust protection fluid for coolant circuits based on synthetic, water-soluble corrosion  inhibitors. It affords reliable protection against corrosion and offers high resistance to fungal and bacterial contamination. It is OEM recommended as coolant for machine tool spindles and corrosion protection in coolant circuits. ControXid 1642 is not caustic; it does not contain nitrites, chromates or heavy metals and no phosphates, chlorine compounds or amines. ControXid 1642 protects ferrous metals (steel, cast iron) against corrosion and has no effect on aluminum alloys, other nonferrous metals or mineral oil-based sealing materials.