Magnaflux ZP-4B Zyglo Dry Developer Powder
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ZP-4B is a free-flowing, white, fluffy Form A dry powder developer composed of inert organic and inorganic coating materials. This high sensitivity dry powder developer for Zyglo penetrants is supplied ready to use. It enhances indications of ultra fine discontinuities by forming a thin film of coating. ZP-4B's high purity allows it to be used in applications demanding purity. Method of Application ZP-4B Dry Powder Developer is applied to the test surface after part has been dried. ZP-4B may be applied by dusting, spraying, dust clouding or dipping. Dipping is the least preferred method of application as some indication scrubbing can result and developer can become contaminated quickly with fluorescent specks. Electrostatic spray application is possible, but care is required to prevent excessive developer build-up which will mask indications; fillet areas may not receive developer on the other hand and indications will not be enhanced. ZP-4B produces bright yellow green indications with Zyglo penetrants. It is recommended that a developing time of at least 10 minutes be allowed prior to inspection for full indication development. | |||||||||||||
SpecificationsSpecification Compliance AMS 2644, ASTM E 165, MIL-STD-271, ASTM E 1417, MIL-STD-2132, ASME B & PV Code, Sec. V, Boeing BAC-5423 PSD 6-46 or 8-4, Boeing PS-21202, Pratt & Whitney FPM, Honeywell EMS 52309, AMS 2647, General Electric P3TF2, AECL
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