Dye Penetrant Testing (DPT)
- This method is the most common inspection method to identify surface discontinuities e.g. crack, pinholes, laps, seams on non-porous & non absorbing materials
- It is particularly useful in locating flaws in weldments, joints, tubing & castings.
- The two types of DPT are Dry Penetrant method and Fluorescent Penetrant method.