WCUK Power-Fluid UV BLUE. Under UV illumination, the dye begins to shine strongly. This color additive is not as corrosion protection and  should  be used only with distilled water (to prevent deposits), but can also be mixed  with the  AntiCorro  fluid. It is safe for the typical materials, a  water  cooling system (copper, aluminum, brass ...). Under normal light,  the addition  is almost colorless. Now with increased luminosity!

Mixture specifications: 1 to 16.5 for maximum brilliance.
50ml
Sufficient for at least 4 complete cooling systems, can be up to 4 liters of dye still good.