Penetrant Testing

Penetrant Testing is a third NDT method of detecting surface abilities. The method has its advantage in the examination of unmagnetic materials for surface abilities, pores, lamination control of material edges, etc.. Penetrant Testing is a relatively inexpensive test method both in terms of consumables and in terms of the time spent on the test.

However, a thorough cleaning of the surfaces is required before initiation, as impurities may prevent the penetration of the cappilar dye fluid into any cracks, and the liquid must be given a reasonable time to penetrate any cracks. After a further cleaning of the surface, an inducer is applied which sucks the residue out of cracks and crevices that otherwise could not be seen visually.

NDT the method is effective and can be applied to both magnetic and unmagnetic materials and in all good-downs. The method is also often used for inspection of axles, possibly using fluorescent penetrating fluid.

If you are unsure about the choice of suitable method, we would like to hear from you.