NDT – Fluorescent Penetrant Inspection


NDT – Fluorescent Penetrant Inspection

A fluorescent penetrant dye is applied to the surface of the part and allowed to penetrate any flaws on the part, before any excess penetrant is removed from the surface. A developer is then applied and the part inspected to show up the location of any flaws on the part.

Surface preparation is key for fluorescent penetrant inspective to give accurate results as any dirt or grease may interfere with the results. The penetrant is then applied, before allowing to dry and any excess is removed. A developer is applied before Poeton’s skilled inspectors evaluate the part under UV light to view the results of the test.

Materials Processed:

Nickel Alloys, Carbon Steels, Stainless Steels, Titanium alloys, Aluminium alloys

Tank sizes: Gloucester

1m x 0.5m x 0.5m

Tank sizes: Cardiff

2m x 1.5m x 1m

The tank sizes shown above are approximate sizes only. If you have a larger part then please contact us as we may still be able to help.


Rectangle with a crack

Highly sensitive penetrants can detect even the smallest of surface defects

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Both immersion and electrostatic applications available

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Highly trained level 2 inspectors

Level 3 NDT

Full level 3 signed NDT techniques


Post machining inspection


Machining abuse evaluation

Post plating inspection


Oil & gas

General engineering

NDT – Fluorescent Penetrant Inspection