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-4B Method B lipophilic emulsifier or ZR-10C Method D hydrophilic emulsifier can be used.
Improve indication detection
Maximise penetrant inspection process control
Wide range of inspections
Maximise operator comfort and safety
NDT TypeFluorescent Penetrant Testing
Penetrant TypeType 1
Fluorescent Penetrant SensitivityLevel 3 - High Sensitivity
Penetrant MethodsMethod B, Method C, Method D
Removal TypePost Emulsifiable
Required EquipmentUV light source
Ideal ApplicationCritical components, Detecting fine discontinuities, Electrostatic spray, Immersion dip tank, Machined components, Precision castings, Precision forgings
Defect ExamplesFine cracks, Porosity, Seams
StandardsAMS 2644, ASME BPVC, ASTM E1417/E1417M, ASTM E165/E165M-18, ISO 3452-2, MIL-STD-2132, Pratt & Whitney PMC 4353, Rolls Royce RRP 58003 (CSS 232), SAFRAN Pr 5000/In 5000

ZL-2C Level 2 post-emulsifiable fluorescent penetrant for Method B/C/D liquid penetrant testing

ZL-37 Level 4 post-emulsifiable fluorescent penetrant for Method B/C/D liquid penetrant testing

EV6000 portable, hand-held LED UV lamp for fluorescent PT and MT
LED UV lamps and black lights for non-destructive testing
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