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Magnaflux Liquid Penetrant ZL-37

Level 4 Post Emulsifiable Fluorescent Penetrant

Essential for critical component applications, ultra-high sensitivity ZL-37 post-emulsifiable penetrant is designed for detecting fine, tight discontinuities in safety-critical components, such as titanium turbine components, and in high-stress parts, such as investment castings.

This Type 1 penetrant is non-water-soluble so there is minimal risk of washing ZL-37 penetrant from a fine or shallow defect which makes this penetrant inspection the most reliable, dependable form of PT testing. ZL-37 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.

ZL-37 can be removed with ZE-4E Method B lipophilic emulsifier or ZR-10E Method D hydrophilic emulsifier.

ZL-37 is listed on the QPL SAE AMS 2644 Qualified Product List and is approved for use by Pratt & Whitney.

Benefits

Improve indication detection in the most critical applications

  • Creates the clearest, brightest indications for even the finest flaws due to very strong UV and thermal stability

  • Highest fluorescent brightness of any Level 4 penetrant for high-contrast indications that are easy for inspectors to see – even when the indications are very small

  • 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-37 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

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 4 ultra-high sensitivity
  • Post emulsifiable
  • Bright, high-contrast indications
  • Resists over-washing or over-removal
  • High flash point
  • Wide range of application methods
  • Low odor
  • Very low toxicity
  • Alloy compatibility
  • Very high thermal resistance
  • Very high UV stability
  • High dye content
  • QPL SAE AMS 2644 Qualified Product List
  • Approved for use by Pratt & Whitney
  • Specifications 
  • Container Size & Part Number 
  • Applications 
  • Use Recommendations 

Specifications

  • 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 4354
  • QPL SAE AMS 2644

Container Size & Part Number

Aerosol can, case of 12       01-3188-78

5 gal / 18.9 L pail                 01-3188-40

20 gal / 75.7 L drum            01-3188-30

55 gal / 208 L drum             01-3188-45

 

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Applications

Defect location: open to surface

Ideal for:

  • Detecting fine to very-fine discontinuities
  • Precision components
  • Safety-critical components
  • Investment castings
  • High-stress parts
  • Smooth, machined surface finish
  • Non-porous surfaces
  • Finding wide, shallow flaws
  • Turbine engine blades, disks, etc.
  • Titanium
  • Aluminum
  • Immersion dip tank
  • Electrostatic spray

Defect examples:

  • Finished surface cracks
  • Seams
  • Porosity
  • Scratches

 

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Use Recommendations

NDT Method: Fluorescent Penetrant Testing

Type: Type 1

Methods: Method B, Method C or Method D

Sensitivity Level: Level 4, ultra-high sensitivity

Required Equipment: UV light source, like the EV6000

Temperature Range: 40 to 125°F / 4 to 52°C

 

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Related Products

Magnaflux ZE-4E Lipophilic Emulsifier

ZE-4E

Lipophilic emulsifier

Magnaflux ZR-10E Hydrophilic Emulsifier

ZR-10E

Hydrophilic emulsifier

Magnaflux ZP-4B Dry Powder Developer

ZP-4B

Dry powder developer

Magnaflux ZP-14A Water Soluble Developer

ZP-14A

Water soluble developer

Magnaflux ZP-5B Water Suspendible Developer

ZP-5B

Water suspendible developer

Magnaflux ZP-9F Solvent Based Developer

ZP-9F

Solvent-based developer

Magnaflux UV Lamp EV6000

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Hand-held LED UV lamp

Liquid Penetrant Testing Testing Services

Test Services

For in-use penetrant, emulsifiers and developers

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