What is Dye Penetrant Inspection (DPI)?
Also known as Liquid Penetrant Inspection (LPI), DPI is used to detect cracks, fractures, and surface defects in non-porous materials such as non-ferrous metals, plastics, and ceramics.
Dye penetrant inspections are a great way to make sure that welds don’t have any hairline fractures and that your pipes and tanks don’t have fatigue cracks or leaks.