It is an alloy plating steel sheet which combined the best of the advantages of zinc (self-sacrificing properties, anti-alkaline) and aluminum (durability, heat resistance, acid resistance).
The weight of the plating layer is made up of 55% aluminum (Al), 43.4% zinc (Zn), 1.6% silicon (Si). The volume of the plating layer is made up of more than 80% of aluminum so it can take full advantage of the benefits of aluminum, while minimizing the weakness (red rust on the exposed parts) through the self-sacrificing property of zinc.

Galvalume coating is designed to protect from oxidation. Galvalume metal has better protection against water and other liquids compared to Galvanized Steel. Galvalume is ideal for roofing and other outdoor construction projects.

Galvalume is a carbon steel that has been coated with aluminum-zinc alloy (55% aluminum, 45% zinc) after going through a continuous hot-dip process. Galvalume is ideally suited for roofing and siding applications, also including cutters and pipes as well as automotive parts and appliances. It can be painted or used bare and has excellent corrosion resistance and a long-life span. It can also be readily formed and stamped.

Galvalume is a carbon steel that has been coated with aluminum-zinc alloy (55% aluminum, 45% zinc) after going through a continuous hot-dip process. Galvalume is ideally suited for roofing and siding applications, also including cutters and pipes as well as automotive parts and appliances. It can be painted or used bare and has excellent corrosion resistance and a long-life span. It can also be readily formed and stamped.