| Résumé : |
It has been established by now that cathodic electro coating is the ultimate in the finishing of automotive body panels following its beneficial role in improving the corrosion resistance of the total paint system besides exhibiting an improved throwing power. However, to achieve the proclaimed benefit, the materials used, the pretreatment utilized, and, the electro coating applied, should be fully compatible with each other since any weak link in the system will lead to a total failure. Literature reports reveal that considerable number of changes has been made in the pretreatment cycle, specifically in phosphating formulations, to cope up with the cathodic electro coating. Before going into details of these changes it is important to recall the factors that have forced to adopt such modifications. |
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Pretreatment for cathodic electro coating in EUROPEAN COATINGS JOURNAL (ECJ), N° 6/98 (06/1998)
