No matter which final products type of the color coated production line, it should go through the substrate surface purification treatment. Such as degrease treatment and chemical conversion film treatment during the preprocessing stage of unit process section. During the long producing process, CAMELSTEEL finds the following effects of purification treatment.
1. To improve the matching and consistency between coating and steel substrate. After the chemical transform, its surface could form a rough film which is benefit to improve the coating’s adhesion.
2. To make its substrate reactivate. Before the coating, people often do the surface treatment by rubbing which could improve the cleanness and activation of the substrates’ surface.
3. To improve the adhesive power of object surfaces. It forms the chemical conversion coating which has a balance frame and adhesive power of substrate surface. It could avoid the bubble on the coating because of greasy dirt, air and wet.
4. To improve and guarantee the coating’s barrier property. It could improve the corrosion resistance of organic coating steel sheets and prolong its service life.