The steel strip is treated firstly in cleaning process, then applied with several chemical pre-treatments in preparation for paint coating. This process increases corrosion resistance and promote adhesion of paint.

After treated with chemical pre-treatments, a layer of primer is applied on the front side of strip. This layer enhances painting flexibility and adds an additional protection on corrosion. On the back side, depend on the customize, epoxy coating (wash coat) is commonly applied.

Top coat then be applied on the primed surface, provides high aesthetic and color appearance with soft feeling of the surface, adding several additional features against weather impacts, UV rays, rust and corrosion.