Dye Penetrant Test (DPT, LPI, PT) – Non Destructive Test

Dye Penetrant Test (DPT) is also known as Liquid Penetrant Inspection (LPI) or Penetrant Test (PT). It is one of the most widely used Non Destructive Test (NDT) methods. It can be used to inspect almost all non-porous materials such as metals, plastics, ceramics etc. We can detect any surface¬†discontinuity (or flaw) such as surface cracks, porosity, pinholes etc. by this test method. Principle: DPT is based upon a natural….

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