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Liquid Penetrant

Liquid Penetrant Testing is a very versatile method used to detect surface discontinuities in a wide variety of product forms. It is relatively cost effective and very portable in application. Although surface preparation is sometimes required, when using the visible method no electricity is needed. This makes it a very useful tool especially in remote field applications.


A bright red dye is applied to the surface of the test piece followed by a white contrasting developer to blot out dye that is trapped in a discontinuity. Indications are easily apparent and then characterized. Penetrant Testing can also be performed using the Fluorescent method.The procedure is basically the same as the visible but requires the use of an Ultraviolet light to enhance indications which are easily detected. The Fluorescent Penetrant method is considered to be more sensitive to very small shallow discontinuities.

We provide a full range of professional and economical services. Whether it’s high-volume production, or testing individual large and complex objects, we offer quick turn-around and a high degree of reliability. Contact us for details and pricing.

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Pro-Surve develops and maintains relationships with clients that share our commitment to provide quality and cost effective, innovative mechanical integrity inspections and non-destructive testing services. We care about our clients and maintain a dependable reputation for high quality and nimble customer service. We care deeply for our employees who demonstrate our credibility and foster our reputation, and why we take care of our people and their families so that they can do their jobs well and return home safely each day.

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