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Kirk-Othmer Encyclopedia of Chemical Technology

Organic Coatings for Corrosion Control

Standard Article

Zeno W. Wicks Jr.

DOI: 10.1002/0471238961.1518070123090311.a01
Article Online Posting Date: March 14, 2003

Abstract | Full Text: PDF (200K)

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Abstract

The three approaches to corrosion control by coatings are discussed: suppression of anodic reactions (passivation), suppression of cathodic reactions, and barrier coatings. Corrosion control by baking coatings, electrodeposition coatings, in maintenance coatings, automobile coatings, and aircraft coatings are reviewed. Chromium(VI)-free and Ni-free metal pretreatments are reviewed. The problems of evaluation and testing are discussed.

Keywords: passivation; metal pretreatments; adhesion; wet adhesion; film permeability; electrodeposition coatings; maintenance paints; automobile coatings; aircraft finishes