Capillary method of non-destructive control – PT
Penetrating fluid method
In the interaction of the liquids with open indications due to the capillary effect, a penetrant is retained, which after drawing of the developer is pulled out and a surface with color or fluorescence contrast is formed on the surface.
Field of application:
The method is used to detect surface indications in controlled objects and devices. Furthermore, the method can be used to control leak tightness when both sides of the controlled article.