Liquid Penetrant (NDT) Testing

Liquid penetrant non destructive testing is one of the oldest methods of nondestructive testing still in use today because of its simplicity and remarkable sensitivity to locating very fine surface discontinuities.  Used on ferrous, nonferrous, and even nonmetallic materials, liquid penetrant testing is the most common and cost effective of all NDT inspection methods.

How does Liquid Penetrant NDT work?

As the name implies, Liquid Penetrant NDT involves a colored penetrating liquid that is applied to the surface of the material being tested. The liquid is drawn into defective areas in the material’s surface through capillary action and then drawn out to reveal itself to detection using UV lights or other methods, depending upon the type of penetrant and coloring used. This non destructive testing method is exceptionally good at locating defects.

X-R-I Testing Laboratories provide a full range of economical liquid penetrant NDT services. Whether it’s high-volume production or testing individual, large, and complex objects, we offer quick turn-around and a high degree of reliability.