Alu-zinc is an aluminum zinc-coated sheet metal that can be used unpainted up to and including corrosivity class C4.

The coating alloy consists of 1.6% silicone, 43.4% zinc and 55% aluminum.

The designation AZ185 indicates the coating weight of 185 g / m2 per double side.

The surface is treated with SPT (Surface Protection Treatment) to prevent interfering stains during handling and to facilitate molding.

The covers are coated with AluZink coating on both sides. The chlorine gases are corrosive, but this coating protects the plates, thus preventing the steel from rusting and giving off rust water.

The surface is metal glossy with rose pattern which after a time gets a grayish hue, to later turn into a gray matte patina.

TP104 Coating alloy consists of 1.6% silicone, 43.4% zinc and 55% aluminum.

Corrosion

Alu-zinc has a self-healing ability that makes the material resistant to corrosion caused by scratches. The alu-zinc coating gives the sheet a double corrosion protection. The first protection is the sheet through which the coating forms a barrier to general corrosion. The second protection is due to a galvanic elements (electrolyte) are formed when the plate is exposed to moisture, which causes zinc ions to migrate over and protect exposed steel from corrosion in scratches or cutting edges. Alu-zinc can be used in a much more corrosive environment than eg hot-dip galvanized steel.

Environment

The service life of Alu-zinc, together with, for example, hot-dip galvanized sheet metal, offers great environmental benefits. There is a well-functioning steel recycling infrastructure worldwide. Once manufactured, steel is part of a perpetual cycle as steel always contains recycled material. Steel is always 100% recyclable and the metal layer poses no problems when remelting.