Liquid Penetrant Inspection (LPI) or Penetrant Testing (PT), is one of the oldest and simplest NDT methods. Liquid penetrant inspection is used to detect any surface-connected discontinuities such as cracks from fatigue, quenching, and grinding, as well as fractures, porosity, incomplete fusion, and flaws in joints.
A highly penetrating dye on the surface will enter discontinuities after a sufficient penetration time, and after removing the excess dye with a developing agent, the defects on the surface will be visible.Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed molestie scelerisque ultrices. Nullam venenatis, felis ut accumsan vestibulum, diam leo congue nisl, eget luctus sapien libero eget urna. Duis ac pellentesque nisi.
