Coated Sheet 


ACRYZINC® Sheet
U. S. Steel ACRYZINC® sheet is a coated sheet product that combines the corrosion resistance of a galvanized coating with a clear organic resin surface treatment that is applied over the galvanized coating. The surface treatment is essentially invisible but it provides excellent characteristics to enhance the performance and applicability of galvanized sheet.

These enhancements include:

	Good roll formability without the need for oils
	Excellent resistance to "white rust" during transit and storage

ACRYZINC® sheet is produced directly on the hot-dip galvanizing line. It is applied by rollcoating a uniform, thin film of a water-based acrylic solution onto both surfaces of the sheet. The sheet is then heated to dry the acrylic film. The acrylic film contains corrosion inhibitors and provides lubricity for roll forming.

Aside from the special attributes that the thin acrylic coating provides, the product behaves very similarly to regular hot-dip galvanized product. As stated previously, the acrylic provides a dramatic improvement in resistance to the onset of "white rust" when the product gets wet either in coil form or when the product is stored as bundles of sheets in the field. This does not, however, change the corrosion behavior of the galvanized coating. To attain good performance, the galvanized coating thickness should not be compromised. The life of the product in terms of exposure time before the appearance of red rust is only minimally affected by the acrylic coating; the life before the appearance of red rust is provided by the thickness of the zinc coating.

Typical Applications Application Considerations Fabrication Considerations Tolerances