This highly fluorescent concentrate can be added to oil systems in the ratio of 1 part to 50 parts. It is invisible in ordinary light but fluoresces strong yellow under black light illumination. FAO-109 is used to pinpoint leaks in hydraulic lines, engine crankcases and shock absorbers. (ASTM 11.3.3)
Avalable in 8oz, gallon, 5-gallon and 55-gallon packages.
PURCHASE CERTIFICATION ($5)
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