Abstract:
A fluorescent dye in combination with an aviation functional fluid. The fluorescent dye is present in the functional fluid from about 0.0001% by weight to about 1% by weight. A method of detecting a leak in an aviation mechanical system that includes a functional fluid with a fluorescent dye. The method would include irradiating select areas of an airplane with a select spectrum of light, and observing an emission from the fluorescent dye.
Abstract:
A 4-Methylcyclohexanemethanol and fluorescent dye blend. The fluorescent dye selected from a group consisting of a naphthalimide dye, a perylene dye, and combinations thereof. In one embodiment, the mixture includes a polyol ester oil, a petroleum hydrocarbon and a naphthalimide dye. The fluorescent dye may further comprise a mineral oil, and a perylene dye.