ZL-67B

Level 3 Water Washable Fluorescent Penetrant

ZL‑67B is a water-based, fluorescent liquid penetrant with Level 3 sensitivity, optimized for medium-sensitivity non-destructive testing on machined, welded, and cast components. It provides strong, reliable indications under UV light and washes off effectively to maintain low background fluorescence and quick process flow.

Features

Medium sensitivity (Level 3): Effectively reveals surface defects on a variety of materials.
Water-washable formulation: Facilitates fast, clean rinsing—ideal for fast-paced inspection workflows.
Homogeneous wetting: Delivers consistent spreading across surfaces for dependable defect detection.
Bright fluorescence: Produces a vivid yellow-green glow under UV-A light for enhanced visibility.
Versatile material compatibility: Suited for metals including aluminum, steel, nickel, and titanium.
Operational efficiency: Low drag-out minimizes waste; controlled evaporation enhances usability.
User-friendly: Low odor and easy to apply in industrial inspection stations.

Applications

Inspection of machined, cast, forged, welded, and extruded parts.
Identification of defects such as cracks, laps, seams, porosity, delaminations, and cold shuts
Commonly used in aerospace, automotive, energy, and precision engineering sectors.

Technical Data

Specification	Details
Type	Water-washable fluorescent liquid penetrant (Level 3)
Sensitivity Level	Medium (Level 3)
Removal Method	Water-washable
Fluorescence Color	Yellow‑green under UV-A (~365 nm)
Surface Compatibility	Machined, cast, forged, welded, and extrusion surfaces
Material Compatibility	Aluminum, steel, nickel, titanium, and other engineering metals
Detectable Defects	Cracks, laps, seams, porosity, delaminations, cold shuts
Developer Compatibility	Compatible with dry powder, aqueous, and solvent-based developers
Standards Compliance	Meets AMS 2644, ASTM E1417/E165, ISO 3452-2, and similar industry specifications
Packaging Options	Offered in aerosol cans, 5 L, 25 L, and 200 L pails or drums