Cathodic disbondment (also called "cathodic disbonding") is the term for delamination of paints, forced by hydrogen gas produced by the cathodic process of the overall corrosion reaction. Especially when steel is protected by sacrificial anodes, the hydrogen evolution on bare steel surfaces (defects in the paint) is enhanced. Therefore, paints must withstand cathodic disbondment.
A variety of test specifications has been developed in the recent decades for testing paints under different environmental conditions. Our multi-channel potentiostats MCP and MCPG are designed to match these specifications, and you find appropriate test cups or electrode arrangements in our program.
More reading about cathodic disbonment can be downloaded here:
Suitable potenstostats ("CD testers") are found here:
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