Leak Check Test With Black Light

Leak Check Test With Black Light
Fluid soluble aniline or fluorescent dyes premixed at the rate of 2.5ml (1/2 teaspoon) of dye powder to 0.24L (1/2 pint) of automatic transmission fluid have proven helpful in locating the source of fluid leakage. Such dyes may be used to determine whether an engine fluid or transmission fluid leak is present. An ultraviolet light must be used to detect the fluorescent dye solution.