RAL Color Coated Aluminum Roofing Coil

Premium-grade aluminum coils with durable PVDF or polyester coatings in 200+ RAL colors, engineered for exceptional weather resistance. Galvalume Steel: It adopts a 55% aluminum-zinc-silicon alloy coating and forms a dense protective layer through the hot-dip galvanizing process. Its corrosion resistance is 3 to 6 times higher than that of ordinary galvanized steel and can withstand a 1000-hour salt spray test. It features a high-temperature stability of 315℃ and is suitable for highly corrosive and high-temperature scenarios such as industrial plant roofs and photovoltaic brackets.Galvanized Steel: The hot-dip galvanizing process forms sacrificial anode protection, with a conventional zinc coating thickness of 80-275g/m², meeting the requirements of moderately corrosive environments such as indoor structures and civil buildings. Good weldability and formability make it an economical choice for standardized manufacturing of light steel keels, home appliance shells, etc.Aluminum Coil/Pi…