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Bi metallic corrosion resistance by GRI Tech coating

Bimetallic corrosion may be prevented by excluding water from the detail (for example by painting or taping over the assembled joint) or, preferably, by electrically isolating the metals from each other (for example by painting the contact surfaces of the dissimilar metals). Isolation around bolted connections can be achieved by non-conductive plastic or rubber gaskets and nylon or teflon washers and bushes. This system is a timeconsuming detail to make on site. Moreover, it is not usually practicable to provide the necessary level of site inspection to check that all the washers and sleeves have been installed properly. To prevent bimetallic corrosion, it is important to choose metals that are compatible with each other and to isolate dissimilar metals from each other where possible. This can be achieved by coating the metals with a protective coating layer GRI Tech coating by SWENN.