Liquid Penetrant Testing is used to check for surface defects of a component .Test objects are coated with dye, the excess dye is removed after penetration time is out then a developer is applied onto it. The developer acts as a blotter.
Any imperfections/cracks are made visible by the “Bleed out”.
- All types of Non Porous materials can be inspected.
- Detects open surface defects.