Liquid Penetrant Inspection

Liquid penetrant inspection supports repeatable surface flaw detection workflows in production, maintenance, and overhaul environments where process consistency and indication evaluation are critical.

Typical inspection workflow

A typical penetrant inspection process may include penetrant application, excess penetrant removal, developer application, and final indication evaluation under suitable inspection conditions.

Liquid penetrant inspection workflow

How LPI works

A reliable method for detecting surface-breaking defects on non-porous materials. Penetrant is applied to enter discontinuities, followed by controlled removal and developer application to reveal indications under visible or UV-A inspection.

Process consistency & standards

Designed in accordance with ASTM E1417 and aligned with NADCAP requirements, supporting process consistency, inspection sensitivity, and audit-ready performance.

Next Step

Explore equipment

Explore representative penetrant inspection equipment systems for water washable and post-emulsifiable workflows.