With the gradually increase of the applied scope of prepainted galvanized steel coil, there are more and more users and buyers. Some users who have just touched the prepainted galvanized steel often have no idea when buying it. As the professional manufacturer, CAMELSTEEL summarizes some matters need attention in the purchase.
1. Coating adhesive force. The adhesive force of coating has close relationship with the machinability of prepainted galvanized steel coil, mainly choose according to the processing method, deformation degree and so on. In the situation of high deformation velocity and big deformation degree, users should choose the prepainted galvanized steel coil with high impact energy and small T bend value.
2. Other performance. Some use environments require the prepainted galvanized steel coil has good organic solvents resistance, acid and alkali resistance, stain resistance and other performance. We should pay enough attention to these special performance so that to meet the use requirements.
3. The choice of coating performance in reverse side. The coating performance in reverse side usually choose according to the use and service environment by supplier. When the corrosivity of service environment is not high, the reverse side is usually coated with only one layer, mainly for decorative effect. When the corrosivity of service environment is high, it should be coated with two layers in order to improve the corrosion resistance of prepainted galvanized steel coil.