Fluorescent Penetrant Inspection (FPI)

We're the experts in Fluorescent Penetrant Inspection. Let us help you inspect your product for any possible defects.

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Met-L-Test Laboratory is an independent family owned business since 1958. We are a Non Destructive Testing facility specializing in the Penetrant Testing (FPI), Magnetic Particle Testing (MPI), and Radiographic Testing (XRay) methods.

  • All of our inspectors are trained and certified

    Our inspection personnel are all qualified and certified in accordance with NAS410 requirements and maintain various levels of certifications for flight safety, primary and critical characteristic parts.

  • Our objective and culture is to meet or exceed our customer's expectations

    Met-L-Test Laboratory's primary goals and objectives are to supply a high level of quality and service while maintaining a quick turn around time at competitive prices.

Fluorescent Penetrant Inspection (FPI)

FPI is a non-destructive testing method used to detect surface-breaking defects in metallic and non-metallic materials. It is commonly used to inspect castings, forgings, and welded components in industries such as aerospace, automotive, and power generation.


During FPI, a fluorescent dye is applied to the surface of the component being inspected. The dye is then "developed" using a developer, which helps to draw the dye into any surface-breaking defects. The component is then exposed to ultraviolet (UV) light, which causes the fluorescent dye to fluoresce (glow) brightly. This makes it easy for the inspector to identify the location of any defects on the component's surface.


One of the benefits of FPI is that it can detect very small defects that may not be visible to the naked eye.


At Met-L-Test Laboratory, we are experts in FPI and have the skills and equipment necessary to provide accurate and reliable testing services for your components. Contact us today to learn more about how FPI can benefit your business!

Advantages


  • Sensitivity: FPI is capable of detecting very small defects, as small as 0.1 mm in some cases.

  • Versatility: FPI can be used on a wide range of materials, including metals, plastics, ceramics, and composites.