ZChek-FP3 – Fluorescent Penetrant Level 3 (QPL)

ZChek-FP3 is a high sensitivity Level 3 water washable fluorescent penetrant, QPL-listed to SAE AMS 2644. Designed for smaller, finer discontinuities in sophisticated and critical components, it is formulated with nonionic biodegradable surfactants and strong capillary action that allows the penetrant to enter tight discontinuities quickly and bleed out completely into the developer layer. This produces bright, sharp Green-Yellow indications under UV with no background fluorescence. Non-halogenated with a flash point above 100°C.

Key features

• QPL-listed to SAE AMS 2644 – no in-house qualification required
• Sensitivity Level 3 – detects fine discontinuities in sophisticated and critical components
• Strong capillary action for fast penetration into tight discontinuities
• Excellent washability with controlled water rinse – no fluorescent background
• Bright, sharp Green-Yellow indications under UV
• Nonionic biodegradable surfactants
• Non-halogenated – safe on all metals
• High flash point above 100°C – safe for use in open areas
• Low odour – user friendly
• Dwell time: 10 minutes recommended (extendable to 30+ minutes)
• Available from 520 ml aerosol to 205-litre drum
• Shelf life: 3 years aerosol | 5 years bulk, unopened

Typical applications

• High sensitivity inspection of castings, forgings, and extrusions
• Aerospace and aviation components requiring Level 3 sensitivity
• Oil and gas and engineering industries
• Programmes requiring QPL-qualified penetrant and water washing process