Nanoxia Coolforce Cooling Liquid Cf No.1 Blue 1.000 Ml Bottle UV CF1 UV B Cf no.1 uv Blue Corrosion protection for copper, nickel, aluminum and brass. Non-conductive &lt; 10 s/cm (20 C). The liquids and all parts of it are manufactured and overseen in germany for outstanding quality. Depending on the hose size, Type and wall thickness, our uv Blue tracers can have different effects in different systems under uv light. Ready to use as is, you don't need any additional additives. Compatible to all available pc-water-cooling-systems.