Liquid Penetrant Online Training
PT Level I, Level II Combined Online Training Course
PT Online Only Training Course
- PT Level I
- PT Level II
- 12 Hour Course Length
- Meets Industry Standards
- Includes ASNT PTP Textbook
- Help From an ASNT Level III via Email or Phone
- Life Time Access To Online Material
- Give Us A Call Now To Learn More
- 218-851-8347
- moulton@nationalinspection.org
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Enroll in our 32 hour Liquid Penetrant NAS410 course for our Aerospace specific content!
About Our Online Courses
At National Inspection Academy, we provide high-quality online training courses designed to help individuals and companies gain the skills needed for Non-Destructive Testing (NDT). Our online courses are self-paced, accessible from anywhere, and meet industry standards for training.
Why Choose Our Online Courses?
- Flexible Learning – Study at your own pace, anytime, anywhere.
- Industry-Aligned Curriculum – Our courses follow ASNT SNT-TC-1A and CP-189 guidelines.
- Expert Instruction – Learn from experienced ASNT Level III instructors.
- Affordable & Efficient – Get the training you need without travel expenses.
What is Liquid Penetrant Testing?
Liquid penetrant testing (PT) is a nondestructive testing method used to find surface cracks or flaws. This method uses a special liquid dye that is applied to a clean surface. The dye seeps into any cracks through a process called capillary action. After waiting a short time, the extra dye is wiped off, and the surface is dried. Then, a developer is applied, which helps pull the dye out of any cracks. This makes the cracks visible, showing where they are located.