Dye-Penetrant Flaw Detection

This technique is used to detect defects such as cracks, porosity, laps, seams and other surface discontinuities. Dye penetrant inspection can be applied to both ferrous and non-ferrous materials and all non-porous materials.

AHT carry out both Fluorescent and Colour Contrast Dye-Penetrant Flaw Detection to customer requirements.

How do we do it?

Parts are dipped in penetrant, once submerged under the surface it is then immediately withdrawn.

The parts then dwell for a set amount of time, any excess penetrant is removed and soaked in cold water.

Once removed from the cold water we flash dry and heat the parts for a set amount of time.

Once the parts have been heat treated they are transferred to the Dye Penetrant Station for inspection. All inspectors are trained and certified to PCN level II.

This can also be done as a stand alone service as well as after heat treatment and we are happy to give you a free trial.


Leigh KinseyProduction Controller
01384 453777


Ian PerksSales Director
01384 453903
07712 397978