Introduction to roll coating process of aluminum sheet surface

After degreasing and chemical treatment, the surface of aluminum plate is rolled with high quality paint and dried and cured. The flatness of the paint film on the surface of the roller-coated plate is higher than that of the sprayed plate. The color is divided into pearlescent and matte, and most of the common ones on the market are pearlescent. Its price is higher than that of spraying. The biggest feature of the roller coating board is the color simulation is very high; Roller coating process of good and bad grade difference is very large, in addition to all the materials, there are several times with it color, such as two coating two roll, is sprayed once is baked once, and then sprayed again baked, so that the color is more uniform and smooth, good roller coating board is also very expensive, realistic color, lasting strong.

Imported fluorocarbon roller coating is also a kind of roller coating, is in the pigment plus fluorocarbon, making color adhesion stronger, greater service life, acid and alkali resistant corrosion resistance, often used in the building's exterior decoration (not afraid of wind and rain), the price cost is very high, is one of the most high-grade roller coating board.

The surface treatment process of roll-coated panels is as follows.

Roll-coated panels have top coat, primer and back coat. The back coat mainly plays the role of anti-oxidation and makes its service life longer. Semi-finished products - on the machine - forming - off pieces and inspection - packaging into storage.

The surface of the roll-painted board is uniform, smooth, without obvious defects such as leakage, shrinkage, scratches and peeling. But the surface has bubbles, dents, inclusions and other trace defects, these belong to the normal phenomenon.

If you want to purchase color coated aluminum sheet, please contact us.