CORROSION RESEARCH ROUND‐UP

Abstract

GERMANY Metallic zinc in paints. The corrosion‐inhibiting effect of zinc‐containing paints is due in the first place to electrical interaction between pigment and iron base, resulting largely information of difficultly soluble basic zinc compounds. This means insulating of the cathodic part of the base surface, with closing of pores and cracks. This may be continued by oxidation due to moisture or atmospheric oxygen. As the cathodic action of zinc dust is limited it is advisable to apply this method to corroded iron surfaces which must be carefully pre‐cleaned. The experiments herein described have confirmed that there is a fundamental difference between zinc treatment in the ordinary sense and the application of zinc dust paint, not only in mechanical features but also in behaviour in regard to anti‐corrosion. Protection due to a compact zinc mass as a rule lasts until complete breakdown of the ferrous base. Zinc dust treatment has special merits of its own beyond that of a mere zinc coating.— (H. J. Schuster, Werks u. Korr., 1959, 10 (8), 490–494.)

Citation

(1959), "CORROSION RESEARCH ROUND‐UP", Anti-Corrosion Methods and Materials, Vol. 6 No. 10, pp. 318-320. https://doi.org/10.1108/eb019645