Dye penetration testing or liquid penetrate inspection (LPI) is done to locate surface breaking defects. The method can be used on ceramics, plastics, metals.
A coating thickness gauge (or a tool that measures coating thickness) is important for many applications in different industries. One major application is non-destructive.
Magnetic Particle (MP) inspection techniques are used in many industries. The purpose is to prevent failures or accidents that can result from defects or discontinuities..