As the name suggests, it is the last process of topcoat. When the paint surface is dry and solid, the defects on it will be treated. If you try your best, some imperfect parts will flow down, and then you have to remedy them later. In fact, no matter how satisfied the paint surface is, it is not very perfect. For example, the loading paint of Mercedes Benz and BMW will have slight fish scale, We generally call it orange peel phenomenon, which is a natural phenomenon caused by the drying time difference in the leveling process of the paint film. Of course, it is difficult for ordinary people to detect it, and it can only be detected with the appreciation level of experts. Therefore, to deceive the eyes of experts, we have to carry out the paint surface treatment, which we call "mirror surface treatment". First, use 1500-2000 mesh beauty sandpaper for leveling and grinding (2500 mesh if necessary), then use coarse wax composed of pumice or clay for grinding and cutting to remove traces of sandpaper. Next, use fine wax for grinding (silicon free) to remove traces of coarse wax, then use reducing agent to achieve perfect luster, and then use mirror treatment agent to completely remove halo and smear marks, At this time, the paint to achieve the deepest gloss, the last process is glaze sealing, so you can achieve the perfect paint effect of the expert level.