• ZP-4B - 20 lb. Pail

ZP-4B - 20 lb. Pail


  • Brand: Magnaflux
  • Product Code: 01-3328-75
  • Availability: Out Of Stock - This item is out of stock.

Available Options


  • AECL
  • AMS 2644
  • AMS 2647
  • ASME
  • ASTM-E1417
  • ASTM-E165
  • Boeing BAC 5423 PSD 6-46 or 8-4
  • Boeing PS-21202
  • GE P3TF2
  • Honeywell EMS 52309
  • ISO 3452-2
  • MIL-STD-2132
  • MIL-STD-271
  • Pratt & Whitney PMC 4356
  • QPL SAE AMS 2644
Container SizeProduct Number
10 lb. pail01-3328-69
20 lb. pail01-3328-75


ATTENTION: Magnaflux is phasing out ZP-4B in order to make way for their improved formula, ZP-4D.

For more information please contact us at [email protected].


Magnaflux Dry Powder Developer

ZP-4B is a free flowing, white, fluffy powder used as a high sensitivity dry powder developer for penetrant inspection. It is supplied ready to use and forms a thin film on parts which enables it to enhance indications of ultra-fine discontinuities. ZP-4B is listed on the QPL SAE AMS 2644 Qualified Product List and is approved for use by Pratt & Whitney.

ZP-4B pairs perfectly with ZL-4C, Magnaflux's water-based penetrant, making it ideal for inspecting plastics.


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