Coating Characteristics of Electrogalvanizing
This electro-deposited zinc coating consists of pure zinc tightly adherent to the steel. The coating is highly ductile and the coating remains intact even after severe deformation. The coating is produced on strip and sheet materials to coating weights up to 0.2 oz/ft2 (60 g/m2), or thickness up to 0.14 mils (3.6 µm) per side. On wire, coating weights may range up to 3 oz/ft2 (915 g/m2). Heat-treated and electrocoated wire can be cold drawn to about 95% reduction in area, depending on the chemical composition of the wire, heat treatment, and diameter.
The electrogalvanized coating can be treated to make it suitable for painting. Due to the extremely thin zinc coating on the sheet, painting or other top coating is recommended to improve the service life. Electrogalvanized sheet product is commonly used in automobile and appliance bodies.
See the Zinc Coatings Publication for more detailed information.
© 2020 American Galvanizers Association. The material provided herein has been developed to provide accurate and authoritative information about after-fabrication hot-dip galvanized steel. This material provides general information only and is not intended as a substitute for competent professional examination and verification as to suitability and applicability. The information provided herein is not intended as a representation or warranty on the part of the AGA. Anyone making use of this information assumes all liability arising from such use.