After degreasing and chemical treatment on the surface of aluminum plate, high-quality coating is applied on the surface of aluminum plate, which is dried and solidified. The flatness of the paint film on the surface of the roller coating plate is higher than that of the spray coating board. The color is divided into pearlescent and matte, the most common on the market is pearlescent. Its price is higher than that of spraying. The biggest feature of roll coating board is that the color simulation degree is very high; the quality of roll coating process is very different. Besides all materials, there is also something to do with it in several times. For example, two coats and two rolls, that is, spraying once is baking once, and then spraying and baking again, so that the color is more uniform and smooth. The price of good roll coating board is also very expensive, the color is lifelike and durable.Imported fluorocarbon roller coating is also a kind of roll coating, that is, adding fluorocarbon in the pigment makes the color adhesion stronger, the service life longer, the acid and alkali resistance and the corrosion resistance. It is often used in the external decoration of buildings (not afraid of wind and rain), with high price and cost, and it is one of the highest grades of roll coating board.