Magnaflux Zyglo ZP-5B, Water Suspendible Developer Magnaflux| Magnaflux Zyglo ZP-5B, Water Suspendible Developer Print Magnaflux| Magnaflux Zyglo ZP-5B, Water Suspendible Developer The Magnaflux Zyglo ZP-5B is a white powder developer to be suspended in water and applied by immersion during the penetrant inspection process. After being applied, it must be dried to form the developer film (agitation required). MGZP5B-6: ZP-5B, 11.3kg (25lb) pail. Request for information