For non-destructive testing technicians, it’s vital to master a range of testing methods to be well prepared for different types of NDT jobs. One of the important NDT techniques that most technicians use to determine flaws and discontinuities in a component is Liquid Penetrant Testing or LPT.
What is Liquid Penetrant Testing?
Liquid Penetrant Testing is one of the common NDT methods used to detect discontinuities that are open to the surface. It uses a low-viscosity liquid that is applied to the surface of the component that needs to be tested.
While every aspiring technician should learn LPT to get better at the job, those who want to specialize in it should know the type of flaws it can detect. This is because different techniques are suitable for different applications, and knowing which one to choose for a specific situation can save you time and bring accurate testing results.
What Flaws can Liquid Penetrant Test Detect?
For the most part, LPT is an excellent method for detecting surface defects. It can expose surface cracks, leaks, breaks, and other discontinuities. It can find surface-connect flaws in a range of materials as long as the surface is non-porous. However, it may fail to detect flaws that are deep below the surface. But because of its accurate results and ease of use, it holds a special place among different types of testing methods. So much so that most non-destructive testing schools teach this method to their students.
Want to excel in Liquid Penetrant Testing?
If you want to learn the nitty-gritty of LPT, feel free to get in touch with us and let us offer you hands-on experience on a range of NDT methods and Non-Destructive Testing Certification.