China Zinc Coated Coils Roofing Materials Dx51d G550 Z200 Gi Coil Cold Rolled 30 Gauge Bwg30 Hot Dipped Galvanized Steel Coil, Find details about China Galvanized Steel, Steel Coil from Zinc Coated Coils Roofing Materials Dx51d G550 Z200 Gi Coil Cold Rolled 30 Gauge Bwg30 Hot Dipped Galvanized Steel Coil
Grade | SGCC, CGCC, SGCH, DX51D+Z/DX53D+Z/S220GD-550GD |
Thickness | 0.13-0.80mm |
Width | Max1250mm(600~1250mm) |
Length | By coil |
Base material | GI/GL/PPGI/PPGL/AL-ZN-MG |
Painting Thickness | Top side: 10-25microns; Back side: 3-20microns |
Colour | RAL NO./Your sample |
Coil ID | 508mm/610mm |
Packing | Waterproof paper+plastic film+iron packing+bundling, or as per customers request. |
Application | Corrugated roofing sheet, Ceiling channel, industrial refrigeration, cold storage, door panel, sandwich panel, PU panel. |
Primer coating (Top) | It is helpful to strengthen the adhesion to the substrate so that the paint is not easy to desorb after the paint film is permeated, and it will also improve the corrosion resistance because the primer contains corrosion inhibitors, such as chromate pigments, which make the anode passivation. To improve corrosion resistance. |
Front coating | It shields sunlight and prevents ultraviolet rays from damaging the coating; when the primer coating (Top) reaches the specified thickness, it can form a dense shielding coating, reducing water and oxygen permeability. |
Primer coating (Back) | The effect is to prevent corrosion of steel plates from the inside. |
Zinc coating | Generally use galvanized or galvalume steel, this part of the product's service life has the greatest impact, the thicker the coating corrosion resistance performance is better. |
Package | Waterproof paper+plastic film+iron packing+bundling, or as per customers request. |
Remarks | Insurance is all risks and accepts the third-party test |
Loading Port | Tianjin/Qingdao port |