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ZL-56

Level 4 Water Washable Fluorescent Penetrant

An ultra-high sensitivity penetrant (Level 4), ZL-56 fluorescent water-washable penetrant is safe for use on alloys in engineering and aerospace use, including aluminum, steel, nickel and titanium. ZL-56 is designed for non-porous and highly machined components. Developers recommended are ZP-4D powder, ZP-9F non-aqueous, SKD-S2 non-aqueous and ZP-5B water suspendible.

ZL-56 is listed on the QPL SAE AMS 2644 Qualified Product List.

Benefits

Bright, high-contrast indications
Ideal for critical part inspection
Ultra-high sensitivity for aerospace inspections
QPL SAE AMS 2644 Qualified Product List

Ordering Information

5 gal / 18.9 L01-3267-40

55 gal / 208 L drum01-3267-45

Product Properties

NDT TypeFluorescent Penetrant Testing

Penetrant TypeType 1

Fluorescent Penetrant SensitivityLevel 4 - Ultra-High Sensitivity

Penetrant MethodsMethod A, Method C

Removal TypeWater Washable

Required EquipmentUV light source

Applications

Ideal ApplicationAerospace alloys, Aluminum, Critical components, High-stress parts, Nickel, Non-porous surfaces, Smooth, machined surface finish, Steel, Titanium

Defect ExamplesFinished surface cracks, Scratches