Liquid Penetrant Inspection

Nondestructive Testing

Liquid Penetrant Inspection (LPI) is a widely applied and low-cost inspection method used to locate surface-breaking defects in all non-porous materials (metals, plastics, or ceramics). The penetrant may be applied to all non-ferrous materials and ferrous materials, although for ferrous components magnetic-particle inspection is often used instead for its subsurface detection capability. LPI is used to detect casting, forging and welding surface defects such as hairline cracks, surface porosity, leaks in new products, and fatigue cracks on in-service components.

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2420 Amsler Street
Torrance, CA 90505

phone: 310-325-7620
fax: 310-325-9655

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