Castrol Corrosion Inhibitor S 205 is a highly effecive low foaming water soluble corrosion inhibitor especially recommended for ferrous metals. It can be used in single sump machines as well as central systems. Castrol Corrosion Inhibitor S 205 can be used when corrosion protection of existing product needs to be improved. It can be used in all water based metalworking fluids including solubles, synthetics, industrial cleaners and deformation products.