Dye Penetrant Inspection (DPI) is widely used to detect surface breaking flaws. This non-destructive testing technique, also known as liquid penetrant inspection (LPI), is a cost-effective method used to locate surface breaking flaws such as cracks, porosity, laps, seams and other surface discontinuities.
What test penetrant is used for testing?
Dye penetrant inspection (DP), also called liquid penetrate inspection (LPI) or penetrant testing (PT), is a widely applied and low-cost inspection method used to check surface-breaking defects in all non-porous materials (metals, plastics, or ceramics).
What are the advantages of using dye penetrant?
ADVANTAGES
- Inspection with this method is of low cost (materials and associated equipment are relatively inexpensive)
- It is possible to do rapid inspection of large areas and volumes.
- It has high sensitivity (small discontinuities can be detected).
- This method is suitable for parts with complex shapes.
