A fast, economical surface inspection method for locating cracks, porosity, and other surface-breaking defects in welds, castings, and machined parts.
Dye penetrant inspection (DPI), also known as liquid penetrant inspection (LPI) or penetrant testing (PT), is one of the most economical ways to find surface-breaking defects. A colored or fluorescent penetrant is applied to the cleaned surface and given time to draw into any openings. After the excess is removed, a developer pulls the trapped penetrant back out of the flaw, producing a clear, visible indication of its location and size.
Because it works on any non-porous material — carbon and stainless steels, aluminum and other non-ferrous alloys, even plastics and ceramics — penetrant testing is our go-to method when magnetic particle inspection is not an option. We use it to find hairline weld cracks, fatigue cracks on in-service components, casting and forging defects, and leak paths in new fabrication.
Precision NDT & Consulting, LLC performs dye penetrant inspection in the shop or in the field for refineries, petrochemical plants, marine, and oil & gas customers across the Gulf Coast. Our technicians hold certifications including ACCP Level II and ASNT Level III, and inspection reports are typically delivered the next business day. Contact us or call 985-412-6821 to schedule an inspection or request a quote.
