The heat preservation aluminum coil is widely used in the pipeline chemical industry, which is a special raw material. The appearance is more lightweight, we are in the purchase of insulation aluminum roll, which are the points of purchase skills. Let's take a look at it today.First of all, pay attention to the thickness of insulation aluminum coil. The performance of this type of aluminum coil is that it has the function of heat preservation. Therefore, many users often choose thicker aluminum coil when purchasing, which is not correct. For the thickness selection of aluminum coil used for thermal insulation, the thickness with more uniform thickness should be selected. Only in this way can we achieve better insulation effect. If the aluminum coil is too thick, it will increase the difficulty of construction, and if it is too thin, it can not achieve the ideal effect of thermal insulation. Secondly, the color of aluminum roll. Generally, the aluminum coil produced by regular manufacturers has a bright appearance. If there are other oil stains or other conditions on the surface of the products, they are relatively colorless. It can be said that the surface color of aluminum coil is very easy to distinguish.