ECOCOOL 2520 is a first class, water miscible cutting fluid based on mineral and ester oils with particularly high quality properties. Suitable for metal working of Copper and Brass alloys. High-alloyed, universal Coolant for the machining of aluminium alloys, steel and particularly for zinc free and lead free nonferrous metals. Provides a stable, milk white emulsion with long life when mixed with water. Biocide containing. Free of Boron and Formaldehyde releasers.