Coil Coated Aluminum Sheet

When many people buy coil coated aluminum sheet, they do not know the specific difference between good and poor color coated sheet. Because the surfaces of color coated aluminum sheets are similar, and there will be no problems if they are not used for a period of time. But after using for a period of time, the difference will appear, but it is too late. Therefore, we color coated aluminum sheet supplier will teach you some methods for distinguish the quality of color coated coil.

There are many factors to consider in the selection of coil coated aluminum sheet coatings, which mainly include coating type, coating thickness, coating color and coating gloss. In addition, the primer and backcoat requirements of the coating are sometimes considered. The types of coatings currently used for color coated aluminum sheet include polyester coating (PE), fluorocarbon coating (PVDF), silicon modified coating (SMP), high weather resistance coating (HDP), acrylic coating, Polyurethane coating (PU), plastisol coating (PVC), etc.

PE coating has good adhesion to the material, and the coil coated aluminum sheet is easy to be processed and formed. Polyester coatings are not ideal for UV resistance and coating film resistance, so the use of PE coatings is still subject to some restrictions, and is generally used in areas where air pollution is not serious or products that require multiple molding processes. Scope of application: Ordinary industrial plants and warehousing and logistics warehouses themselves do not corrode color coated aluminum, and do not have high requirements for corrosion resistance and anti-aging of color coated aluminum coil. More consideration is given to the practicability and cost-effectiveness of plant construction.

Due to the strong bond energy between the chemical bond and the chemical bond of PVDF, the coating has very good corrosion resistance and color retention. Direct bond type structure, so in addition to chemical resistance, mechanical properties, UV resistance and heat resistance are also outstanding. In general environment, its anti-corrosion life can be as long as 20-25 years.