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ZL-15B water washable penetrant is a low-sensitivity penetrant that features excellent washability. It is used to find open surface flaws such as cracks and porosity in seams, laps, cold shuts, and laminations on castings, forgings, extrusions, and parts with rough surfaces.
ZL-15B can be developed with ZP-4B dry powder developer, with ZP-5B water suspendible developer in an agitated tank or with ZP-9F non-aqueous developer. With a UV-A light source, like the EV6000, indications will appear as a bright green-yellow fluorescence.
NDT TypeFluorescent Penetrant Testing
Penetrant TypeType 1
Fluorescent Penetrant SensitivityLevel 1/2 - Very Low Sensitivity
Penetrant MethodsMethod A, Method C
Removal TypeWater Washable
Required EquipmentUV light source
Ideal ApplicationCastings, Cold shuts, Forgings, Laminations, Laps, Rough surface finish, Seams
Defect ExamplesCold shuts, Cracks, Delamination, Porosity, Seams
StandardsAMS 2644, ASME BPVC, ASTM E1417/E1417M, ASTM E165/E165M-18, MIL-STD-2132
ZL-19 Level 1 water washable fluorescent penetrant for Method A/C liquid penetrant testing
ZL-60C Level 2 water washable fluorescent penetrant for Method A/C liquid penetrant testing
ZL-60D Level 2 water washable fluorescent penetrant for Method A/C liquid penetrant testing
ZL-67B Level 3 water washable fluorescent penetrant for Method A/C liquid penetrant testing
ZL-56 Level 4 water washable fluorescent penetrant for Type 1, Method A and Method C liquid penetrant testing
EV6000 portable, hand-held LED UV lamp for fluorescent PT and MT
LED UV lamps and black lights for non-destructive testing
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