Galvalume steel coil gets its name from being coated with a 55% aluminum-43% zinc alloy, also known as Galvalume. This special hot-dipped coating provides both sacrificial galvanic corrosion protection and a paintable surface ideal for architectural panels, roofing, and more. Excellent long-term corrosion resistance makes aluminum-zinc steel coils 2 to 6 times better than galvanized coating coils.
