KoreanZL-37 Level 4 Post Emulsifiable Fluorescent Penetrant Essential for critical component applications, ultra-high sensitivity (Level 4) ZL-37 fluorescent post-emulsifiable penetrant is designed for detecting fine, tight discontinuities. Parts common for this testing procedure include titanium turbine components, and high-stress critical components such as investment castings. With a UV-A light source, indications will appear as a bright green-yellow fluorescence. ZL-37 has a high flash point, and is designed to be used in open dip tanks. Both Method B lipophilic emulsifier ZE-4E and Method D hydrophilic emulsifier ZR-10E can be used to remove surface ZL-37 penetrant. Developers can be ZP-4B dry powder developer, ZP-14A water soluble developer in a non-agitated tank, ZP-5B water suspendible developer in an agitated tank, or ZP-9F non-aqueous developer. ZL-37 is listed on the QPL SAE AMS 2644 Qualified Product List and is approved for use by Pratt & Whitney.
Benefits
- Bright, high-contrast indications
- Resists over-washing
- High flash point
- QPL SAE AMS 2644 Qualified Product List
- Approved for use by Pratt & Whitney
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
Applications
Defect location: open to surface Ideal for:
- Precision components
- High-stress parts
- Smooth, machined surface finish
- Non-porous surfaces
- Investment castings
- Turbine blades and parts
- Critical components
Defect examples:
- Finished surface cracks
- Seams
- Porosity
- Scratches
ZL-27A Level 3 Post Emulsifiable Fluorescent Penetrant
Post-emulsifiable ZL-27A penetrant is a high-sensitivity penetrant designed for inspection with the use of an emulsifier to remove surface penetrant. Both Method B lipophilic emulsifier ZE-4E and Method D hydrophilic emulsifier ZR-10E can be used to remove surface ZL-27A penetrant before developer application. Developers can be ZP-4B dry powder developer, ZP-14A water soluble developer in a non-agitated tank, ZP-5B water suspendible developer in an agitated tank or ZP-9F non-aqueous developer. With a UV-A light source, flaw indications will appear as a bright green-yellow fluorescence. ZL-27A has a high flash point, and is designed to be used in open dip tanks.
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Properties
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ZL-2C Level 2 average Sensitivity
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ZL-27A Level 3 High Sensitivity
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ZL-37 Level 2 average Sensitivity
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Viscosity @ 100℉(cs)
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5.1
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8.9
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13.4
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Density (Ibs./gal)
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7.4
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7.6
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8.1
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Flash Pint (PMCC)
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>200℉
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>200℉
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>200℉
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Sulfer (ppm)
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<1000
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<1000
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<1000
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Chlorine (ppm)
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<1000
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<1000
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<1000
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Sodium (ppm)
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<100
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<100
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<100
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Fluorine (ppm)
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<100
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<100
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<50
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