What is Kesternich Testing?

Kesternich testing, also known as Kesternich corrosion testing, is a method used to evaluate the corrosion resistance of metallic materials, including plated surfaces. The test is named after the German engineer Wilhelm Kesternich who developed the method.

The Kesternich test is specifically designed to simulate the corrosive effects of acidic atmospheric environments on metals. This type of corrosion is often encountered in industrial settings or areas with high levels of air pollution. The test involves exposing the material, such as plated samples, to a controlled atmosphere containing sulfur dioxide (SO2) gas mixed with air. The exposure to SO2 simulates the corrosive effects of acid rain or industrial pollutants.

During the test, the samples are typically placed in a sealed chamber, and the SO2-laden air is introduced. The samples are then subjected to cycles of wet and dry conditions to mimic the changing environmental conditions. The corrosive action of sulfur dioxide on the plated surfaces can lead to the formation of corrosion products, and the severity of corrosion is evaluated based on factors such as mass loss, visual inspection, and other relevant criteria.

Kesternich testing helps assess the durability and corrosion resistance of plated materials in environments where exposure to acidic gases is a concern. This information is valuable for industries such as automotive, electronics, and construction, where plated components may be exposed to harsh atmospheric conditions over time.

DeKalb Metal Finishing Plating Testing
DeKalb Metal Finishing conducts regular tests on panels to validate the effectiveness of our Zinc Nickel (ZnNi) process, our Zinc (Zn) process, and our Zinc Iron (ZnFe) process and we compare outcomes with OEM Engineering Specifications. The panels are produced using our standard process configuration. It’s worth noting that DeKalb Metal Finishing possesses the capability to meet stricter coating requirements, which will be evaluated on a case-by-case basis as per customer requests. Once the results are officially confirmed, images of the panels are shared.

Contact our metal plating experts today to discuss your products that need plating and testing!

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