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Corrosion Propagation Under Paint Films on Galvanized Steel: A Comparison of Phosphating and Thin Film Corrosion Pretreatment Technologies
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The pretreatment of car bodies prior to applying the paint is crucial to promote paint adhesion and corrosion inhibition. The current phosphating pretreatments’ inability to pretreat magnesium and a body with aluminum content of over 30%, as well as future environmental legislation, will force a change in the pretreatment technology. The sustainable alternative pretreatment systems do not contain heavy metals, reducing the need for post-treatment of the waste-water and sludge from the process. The change will e...