China Low Price Prepainted Galvanized Steel Sheet/Colour Coated Steel Coil/Wrinkle PPGI, Find details about China Prepainted Galvalume Coil, Precoated Roofing Sheet from Low Price Prepainted Galvanized Steel Sheet/Colour Coated Steel Coil/Wrinkle PPGI
Item | Thickness | Type | Feature |
Laminated film | 50μm | Polyethylene | Protecting from scratchs and contamination (option) |
Top coat | 20μm | Polyester Fluorine | Chemical resistance and formability |
Primer coat | 5μm | Polyester | Workability, corrosion resistance and adhesion to the primer coating |
Chemical treatment | 1μm | Chromate | Good adhesion and corrosion resistance |
Substrate | 0.2mm-1.2mm | GI.GL,AL | GI.GL,AL |
Back coat | 5±2μm | Epoxy | Corrosion resistance and adhesion to the substrate |