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.
Benefits
Specifications
Item # - Sizes
Applications
Utilization
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Improve indication detection
Clear, bright indications are easier to detect due to high UV and thermal stability – even for small flaws and discontinuities
Indications stand out more since background fluorescence is minimized; emulsifiers only remove surface penetrant without the risk of over-washing
Maximize penetrant inspection process control
Prevents over-washing since ZL-27A cannot be removed with water (unless combined with an emulsifier)
PE penetrant system is less susceptible to human error since only surface penetrant is removed in the final rinse stage
Wide range of inspections
Inspect a wide range of high-value components without fear of corrosion or specification non-conformance
Meets all major industry and NDT specification requirements, including Aerospace Prime and OEM specs, AMS 2644 and ISO 3452
Maximize operator comfort and safety
Promotes better inspection quality by providing the operator with a more comfortable work environment
Reduces discomfort from strong odors
Exceeds all EHS requirements
Features
Level 3 high sensitivity
Post emulsifiable
Bright indications
Resists over-washing or over-removal
High flash point
Wide range of application methods
Low odor
Very low toxicity
Alloy compatibility
High thermal resistance
High UV stability
QPL SAE AMS 2644 Qualified Product List
Approved for use by Pratt & Whitney
AECL
AMS 2644
ASME
ASTM E1417
ASTM E165
MIL-STD-2132
MIL-STD-271
NAVSEA T9074-AS-GIB-010/271
Pratt & Whitney PMC 4352
QPL SAE AMS 2644
Aerosol can, case of 12 - Item#: 01-3187-78
5 gal/18.9 L pail - Item #: 01-3187-40
20 gal/75.7 L drum - Item #: 01-3187-30
55 gal/208 L drum - Item #: 01-3187-45
Defect location: Open to surface Ideal for:
Detecting fine discontinuities
Critical components
Precision castings
Precision forgings
Machined components
Immersion dip tank
Electrostatic spray
Defect examples:
Fine cracks
Seams
Porosity
NDT Method: Fluorescent Penetrant Testing
Type: Type 1
Methods: Method B, Method C or Method D
Sensitivity Level: Level 3, high sensitivity
Required Equipment: UV light source, like the EV6000
