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Developed for testing materials that can be affected by petroleum-based penetrants, ZL-4C water-based fluorescent penetrant contains no petroleum derivatives and is harmless to materials that can be attacked by petroleum-based solvents, such as plastics. It is also safe for use on ceramics, and it can be used as a leak detector. It is always recommended that the inspection material is tested for compatibility with ZL-4C prior to use.
ZL-4C can be diluted with water to decrease its viscosity to enable easier application. ZL-4C does not contain a corrosion inhibitor as the materials it is designed to test are not normally susceptible to corrosion.
ZP-4D powder developer is recommended for use with ZL-4C penetrant, because liquid developers may wash penetrant out of open surface flaws in the non-metallic materials being tested.
NDT TypeFluorescent Penetrant Testing
Penetrant TypeType 1
Required EquipmentUV light source
Ideal ApplicationCeramic components, Leak detection, Plastic components
Defect ExamplesCracks, Leaks
StandardsASME
Dry powder developer for Form a penetrant testing and QPL SAE AMS 2644 approved.
NDT cleaner and remover for pre-cleaning before non-destructive testing and for removing excess surface penetrant
LED UV lamps and black lights for non-destructive testing
Portable, handheld LED UV lamp for black light inspection during fluorescent PT or MT testing
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