ACT’s Non-Destructive Testing (NDT) systems can help you evaluate the properties of critical materials or parts to detect cracks or flaws without causing damage to those components.

ACT Utilizes Advanced Fluorescent Penetrant Inspection (FPI)

ACT’s NDT systems utilize fluorescent penetrant inspection (FPI) to help you locate surface-breaking defects in all non-porous materials, such as metals, plastics or ceramics. Our advanced systems provide detection of casting and forging defects, cracks and leaks in new products, and fatigue cracks on in-service components. Combined with ACT’s pre-cleaning and post FPI processing stages, compact and automated systems or semi-automated non-destructive testing systems deliver a complete solution to your Non-Destructive Testing requirements.

Non-Destructive Testing

Help Ensure Component Integrity and Improve Service Life

ACT will work with you to develop a solution to meet your needs. We build our non-destructive testing systems to meet ASTM requirements for water, oil based and electrostatic evaluation methods. Our non-destructive testing systems help ensure that tested parts and components have maintained their integrity, potentially increasing their service life and reducing maintenance costs.

Our non-destructive testing systems be used across a broad array of industries, including aviation, automotive, construction, oil and gas, manufacturing, mining, military, pharmaceutical and power. Contact an ACT sales engineer to discuss waste minimization and custom features such as powered turntables and transfer of loads to make your non-destructive testing system the most efficient and productive that it can be.

Non-Destructive Testing System Process


The test surface is cleaned to remove any dirt, paint, oil, grease or any loose scale.

Application of Penetrant

The penetrant is then applied to the surface of the component being tested. The penetrant will soak into any surface flaws.

Excess Penetrant Removed

All penetrant on the surface of the component being tested is removed, but penetrant trapped in cracks or defects remains in place.

Application of Developer

After excess penetrant has been removed, a white developer is applied to the sample. The developer draws from defects out onto the surface to form a visible indication.


The inspection uses visible light for visible dye penetrant. Ultraviolet (UV-A) radiation, along with low ambient light levels are used for FPI examinations.


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