Hot dip zinc- 5% aluminum-mischmetal alloy delivers the best protective features characteristic of aluminum and zinc, resulting in a highly corrosion resistant metallic coated steel chain-link fabric. Galvinal™ is referred to in ASTM as Zinc-5% Aluminum-Mischmetal Alloy Coated Steel Chain Link Fence Fabric. Choose one of two coating weight classes: Class 1, having 0.6 oz. /ft.² or Class 2, having 1.0 oz./ft.²