PPGI

※   Hot-dip galvanized substrate: the thickness of the layer can reach 180-275g/m² on both sides, the corrosion medium is isolated by zinc layer, and the life is extended by about 1.5 times after the surface is covered with organic coating, which is widely used in building roofs, walls and other fields.

※   Hot aluminized zinc substrate: zinc-aluminum ratio is mostly 55%Al-Zn, corrosion resistance is more than 4 times that of ordinary galvanized sheet, suitable for high corrosion environment (such as industrial plants, coastal areas).

※   Electroplated zinc substrate: The zinc layer is thin (usually 20g/m²), and the anti-rust ability is weak, but the surface is high, and it is mostly used in low corrosion scenes such as household appliance panels and interior decoration