Liquid Penetrant Testing


Liquid penetrant testing is a Non –Destructive method for finding discontinuities that are open to the surface of solid and essentially non-porous materials. Indications of flaws can be found regardless of the size, configuration, internal structure, or chemical composition of work piece being tested and regardless of flaw orientation. Liquid penetrant can seep into (and be drawn into) various types of minute surface openings (reportedly, as fine as 4micro inch in width) by capillary action. Because of this, the process is well suited for the detection of all types of surface cracks, laps, porosity, shrinkage areas, lamination and similar discontinuities in welds, casting, forgings and other product forms. Dye penetrant inspection is used extensively for the testing of wrought and cast products of ferrous and non-ferrous metals and powder metallurgy parts..

In practice, the liquid penetrant inspection process is relatively simple. Equipment generally is simpler and less costly than that for most other NDT methods .When used on ferromagnetic steels, in some instances, the sensitivity of liquid penetrant test is better than that of magnetic particle testing.

“Intrex offers highly qualified, trained and experienced technicians, capable of producing good quality and better results for your project requirement.”

Our qualified technicians can test all type of weld configuration as per codes and standards. We are committed in providing a service that responds professionally to all our client’s valuable queries.