Zyglo® ZL-56 Water Washable Fluorescent Penetrant

Level 4 water washable fluorescent penetrant for Type 1, Method A and Method C liquid penetrant testing, QPL SAE AMS 2644


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Zyglo® ZL-56 fluoresces a bright greenish-yellow under ultraviolet radiation and is safe for use on most engineering and aerospace alloys including aluminum, steel, nickel and titanium. Use of an ultraviolet light source with a peak wavelength of 365 nanometers, such as the Magnaflux ZB-100F fan-cooled black light, is recommended. Zyglo® ZL-56 penetrant meets OSHA requirements for Class III B liquids due to its high flash point and can be used in open dip tanks.

Sold in: 5 Gallon Pail, 55 Gallon Drum

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