Magnaflux Zyglo® ZL-27A Level 3 Post Emulsifiable Fluorescent Penetrant
Post-emulsifiable ZL-27A is a Level 3, high-sensitivity Type 1 penetrant designed for inspections which require maximum process control and reliability, such as safety-critical aerospace testing.
Since ZL-27A is not water soluble, there is minimal risk of this penetrant being removed from a fine or shallow defect through over-washing to provide the highest reliability of any penetrant inspection method.
ZL-27A has a high flash point and provides long tank life when used in open dip tanks, but this penetrant can also be applied in a variety of other ways, including electrostatic spray.
To remove surface ZL-27A penetrant before developer application, use ZE-4E Method B lipophilic emulsifier or ZR-10E Method D hydrophilic emulsifier can be used.
ZL-27A is listed on the QPL SAE AMS 2644 Qualified Product List and is approved for use by Pratt & Whitney.
Applications
Ideal application: Critical components, Detecting fine discontinuities, Electrostatic spray, Immersion dip tank, Machined components, Precision castings, Precision forgings
Defect examples: Fine cracks, Porosity, Seams
Specification compliance listed by Magnaflux
AECL, AMS 2644, ASME BPVC, ASTM E1417, ASTM E165, Boeing BAC 5423 PSD 6-46 or 8-4, Boeing PS-21202, ISO 3452, MIL-STD-2132, MIL-STD-271, NAVSEA T9074-AS-GIB-010/271, Pratt & Whitney PMC 4353, QPL SAE AMS 2644
Product description, properties and specification compliance as published by Magnaflux on the ZL-27A product page and Product Data Sheet (rev. July 2023).
Specifications
| NDT Type | Fluorescent Penetrant Testing |
|---|---|
| Penetrant Type | Type 1 |
| Penetrant Method | Method B, Method C, Method D |
| Sensitivity Level | Level 3 |