Magnaflux Zyglo® ZL-27A 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.

ZL-27A is listed on the QPL SAE AMS 2644 Qualified Product List and is approved for use by Pratt & Whitney.

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