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Liquid Penetrant Inspection

Zyglo® ZL-2C Post Emulsifiable Fluorescent Penetrant

ZL-2C’s formulation has been designed to be impervious to water to protect it from over washing and permit more penetrant to remain in discontinuities for improved detection of small defects. It and other post emulsifiable penetrants require the application of a lipophilic or hydrophilic emulsifier to render them washable with water.

Zyglo® ZL-2C fluoresces a bright greenish-yellow under ultraviolet radiation. 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-2C penetrant meets OSHA requirements for Class III B liquids due to its high flash point and can be used in open dip tanks.

Specifications Compliance:

AMS-2644, AECL, ASME B & PV Code Sec V, ASTM E1417, MIL-STD-2132, ASTM E165, MIL-STD-271

Part Number and Container Size:

  • 01-3123-40:  5 Gallon Pail
  • 01-3123-30:  20 Gallon Drum
  • 01-3123-45:  55 Gallon Drum

Applications:  Zyglo® ZL-2C is typically used on castings, forgings, extrusions and rough and machined surfaces to find cracks, seams, laps, laminations and porosity.

Classification: Type 1, Method B Penetrant when using ZE-4B emulsifier. Type 1, Method D Penetrant when using ZR-10B (20%) remover.

Penetrant Sensitivity Level: Level 2 - Normal Sensitivity

Zyglo ZL-2C
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