Zyglo® ZL-4C is a biodegradable, fluorescent, water base penetrant that is soluble in water and can be diluted infinitely, but is generally used as supplied or diluted from 1:1 to 1:2 in water. It contains no petroleum base solvents and fluoresces a greenish-yellow color under ultraviolet radiation. Use of a black light source with a peak wavelength of 365 nm, such as the Magnaflux® ZB-100F Fan Cooled Black Light, is recommended.

APPLICATIONS

Zyglo® ZL-4C is generally used where petroleum solvents may attack the test surface such as on plastics. It may also be used on ceramics and as a leaker penetrant to detect leaks.

COMPOSITION

Zyglo® ZL-4C is composed of water, fluorescent dye and liquid emulsifying agents, but does not contain a corrosion inhibitor.