Liquid Penetrant Inspection is performed by coating the test object with a solution that contains a visible or fluorescent dye.
Best applications for Liquid Penetrant inspections
Home // Liquid Penetrant Inspection
Liquid penetrant inspection (LPI or PT) is used to inspect welds on ferrous and nonferrous materials, including plastics and ceramics. It can identify anything from a visible crack to a flaw that is invisible to the eye, but it does not work well on rough surfaces.
During a LPI inspection, the test object goes through the following steps:
- application of a solution that contains a visible or fluorescent dye
- removal of the excess solution
- application of a developer that draws out the remaining solution and in the process identifies a flaw in the surface
To learn more give us a click or a call.
