The composite panel made up of two 0.5 mm thick AA 3003 H-42 aluminum alloy sheets and a fire resistant mineral synthetic core B-s1, d0. 

The outer face, continuously thermo-lacquered in PVDF, gives it a special resistance to weathering, corrosion and aging. The rear face is coated with a protective lacquer. 

The aluminum core and sheets are joined by a chemical and mechanical process that gives it extraordinary fixation and durability.