Mechanism of the action of zinc‐powder in anticorrosive coatings

Abstract

The present work was directed to the study of mechanisms of the action of zinc powder as an anticorrosive pigment in coating compositions based on binders that are composed of a two‐component epoxy, a single‐component polyurethane, and epoxy‐ester resins. The results of the study have shown that neutralisation and barrier mechanisms contribute more than the electrochemical mechanism to the effectiveness of the anticorrosion protection. During the investigation, the results obtained in corrosion tests were evaluated by investigating the morphology of coatings by means of electron microscopy procedures.

Citation

Kalendová, A. (2002), "Mechanism of the action of zinc‐powder in anticorrosive coatings", Anti-Corrosion Methods and Materials, Vol. 49 No. 3, pp. 173-180. https://doi.org/10.1108/00035590210426436