How to Judge Quality of Color Coated Aluminum Coil

　　Color coated aluminum coil, obtained by continuous degrease, chemical pre-treatment and painting of aluminum coil, performs longstanding and excellent anti-rust and decorative effect. Therefore, it functions as an ideal material for modern construction. Its application covers wall boards, ceilings, roofing, furniture etc. However, not all color coated aluminum coils give satisfying performance listed above. To purchase top quality ones, you must learn some judging skills.

　　Color coated aluminum coils of good quality should be exempt from pressing marks, unpainted areas, pierced spots etc. Curve marks, scratches or bubbles should also be included in quality problem. These problems, although various, can be noticed easily because they are usually obvious. Color difference prove to be a problem difficult to judge, because there are tens of colors for a same color series. Even slight difference of color will influence the eventual decorative effect. In addition, painting material proves to be another key factor influencing quality of the coil. There are PE, PVDF, EP etc, which can not be distinguished by naked eye. The only way to distinguish them is by equipment, which is beyond ability of common consumers. To purchase reliable aluminum coil, the best and simplest way is to choose famous big brands.