Fluorescent Penetrant Inspection Insights

What is Fluorescent Penetrant Inspection?

Fluorescent Penetrant Inspection (FPI), also known as Dye Penetrant Inspection (DPI) or Liquid Penetrant Inspection (LPI), is a widely used non-destructive testing method to detect surface-breaking defects in all non-porous materials (metals, plastics, ceramics). A fluorescent dye is applied to the surface, allowed to penetrate into flaws, excess penetrant is removed, and a developer is applied to draw the trapped penetrant out of the flaw. Under ultraviolet light, the penetrant fluoresces, highlighting the defect.

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What other technologies are related to Fluorescent Penetrant Inspection?

Fluorescent Penetrant Inspection Competitor Technologies

Magnetic Particle Inspection

Magnetic Particle Inspection is a competing NDT method used to detect surface and near-surface flaws in ferromagnetic materials. Both FPI and MPI aim to find similar types of defects but use different physical principles.

mentioned alongside Fluorescent Penetrant Inspection in 12% (76) of relevant job posts

Eddy Current

Eddy Current testing is a competing NDT method that can detect surface and near-surface flaws. While useful for conductive materials, it shares the goal of defect detection with Fluorescent Penetrant Inspection, making them competitive options.

mentioned alongside Fluorescent Penetrant Inspection in 3% (57) of relevant job posts