XSPC EC6 is a high performance, eco-friendly coolant for PC water-cooling. It"s based on a blend of refined vegetable extracts with non-toxic corrosion inhibitors and non-toxic dyes. It offers superb protection for copper, brass, steel, nickel, aluminum and has been tested with a range of acetal and acrylic plastics.EC6 has a high thermal conductivity, a low electrical conductivity and with its range of intense colors it"s the perfect coolant for PC water-cooling.Note: Mixing other water additives is NOT recommended.