This paper provides an introduction to the hot-dip galvanization process as an effective and important coating option and the necessary surface preparation steps for successful painting over hot-drip galvanized steel, also known as a duplex system. Proper practices and procedures must be used to prepare new and weathered zinc-coated surfaces on after-fabrication steel products for painting to improve the bond of paint to the zinc surface and provide long-term protection against corrosion.

Subject
Acids, Hot-dipped galvanized coatings, Paint removal, Zinc rich coatings, Steel surfaces, Metal surfaces, Galvanized coatings, Galvanized steel, Steel, Surface profile, Zinc, Paints, Cleaning
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2017
Association for Materials Protection and Performance (AMPP)
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