ZL-19 WW - Data Sheet

Zyglo® Fluorescent Water Washable Penetrants are used to check for cracks in a wide range of applications. The penetrant fluoresces a greenish-yellow color under ultraviolet radiation and meet OSHA requirements for Class III B liquids (due to their high flash point) and can be used in open dip tanks. 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.