Coating Technology

Coating, mainly fulfilled at the paintshop of automobile manufacturers, covers about 90% area of a car's surface. The purpose of that coating is to contribute the car-body an excellent durability and decorative appearance, thus to extend its service life and commercial value.
This coating is multifunctional. First, the coated automotive steel sheet should have a good corrosion resistance, durability and stone-chipping resistance. All these properties are accomplished relying on the basic character of the material and a comprehensive contribution of the multiple organic/inorganic layers on it.
Besides, the coated automotive steel sheet should also have good decorative property, which can be evaluated by bared eyes and some special equipments. The main indexes are orange-peel value and DOI value which shows the clarity of the reflective image on the high gloss top coating.