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A Method B lipophilic emulsifier, ZE-4E diffuses into the penetrant to clear the penetrant from the surface of the part being inspected. It is rinsed from the part by water, carrying penetrant off the part surface. Designed to be used with post-emulsifiable penetrants Level 2 ZL-2C, Level 3 ZL-27A or Level 4 ZL-37. Benefits include low volatility and a high flash point, so ZE-4E can be used in open immersion tanks.
ZE-4E is listed on the QPL SAE AMS 2644 Qualified Product List.
NDT TypeFluorescent Penetrant Testing, Visible Penetrant Testing
Penetrant TypeType 1, Type 2
Penetrant MethodsMethod B
Ideal ApplicationCastings, Extrusions, Forgings
Defect ExamplesCracks, Laps, Seams
StandardsAECL, AMS 2644, ASME, ASTM E1417, Boeing BAC 5423 PSD 6-46 or 8-4, Boeing PS-21202, NAVSEA T9074-AS-GIB-010/271, QPL SAE AMS 2644
Level 3 post-emulsifiable fluorescent penetrant for Method B, Method C and Method D liquid penetrant testing, QPL SAE AMS 2644 and Pratt & Whitney approved
Level 4 post-emulsifiable fluorescent penetrant for Method B, Method C and Method D liquid penetrant testing, QPL SAE AMS 2644 and Pratt & Whitney approved
Level 2 post-emulsifiable fluorescent penetrant for Method B, Method C and Method D liquid penetrant testing, QPL SAE AMS 2644 and Pratt & Whitney approved
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