XSPC ECX is a high performance concentrate coolant for PC water-cooling. Each 100ml bottle will make 1 liter of coolant when mixed with purified water. ECX offers superb protection for copper, brass, steel, nickel, aluminum and has been tested with a range of acetal and acrylic plastics. ECX has a high thermal conductivity, a low electrical conductivity and with its range of intense colors it makes the perfect coolant for PC water-cooling. Mix ECX purified water to make 1 liter of performance coolant. Do not mix with other water additives.