Pre Painted Aluminum Sheet Suppliers

Pre painted aluminum sheet suppliers offer colorful aluminum sheet and coil with RAL color chart, your customized requirement can be produced. PE polyester is the most widely used coating at present. It has good adhesion, easy processing and molding, good hardness and flexibility of the coating, rich color, wide choice of gloss, general durability, medium chemical resistance, and low cost. PE polyester color coated aluminum coil are currently widely used and large in number of color-coated sheets. Under direct exposure to the general environment, their anti-corrosion life can be as long as 7-8 years. However, its coatings are not suitable for the environment with the above special requirements because of their ordinary performance in terms of UV resistance, chemical resistance, corrosion resistance, and anti-chalking performance. Generally used in areas where air pollution is not serious or products that require multiple molding processes.

Fluorocarbon (PVDF) color coated aluminum sheet is another product of pre painted aluminum sheet suppliers, also called polyvinylidene fluoride color coated aluminum sheet in the literature, which is made of advanced polyvinylidene fluoride resin. 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. Among the color coated aluminum sheet coatings used in the construction industry, it is a high-class product, and the molecular weight is large and straight. Bond structure, so in addition to chemical resistance, mechanical properties, UV resistance and heat resistance are also outstanding. Under normal circumstances, the anti-corrosion period of the base can be as long as 20-25 years.

In recent years, pre painted aluminum sheet suppliers have become popular, and a large number of PE and PVDF pre painted aluminum sheet are used for exterior walls and metal panels in building areas. Due to the use of easily hydrolyzed vinyl ester monomers and the higher fluorine content PVDF is low (about 30%), so there is a certain gap between the base weather resistance and PVDF. The fluorocarbon coating produced by large painted aluminum sheet suppliers has a PVDF content of not less than 70% (others are acrylic resin) PVDF fluorocarbon color coated aluminum sheet, and 20 years quality guarantee certificate guarantees that the coating will not fall off, chalk, crack or fade within 20 years.