Automobile renovation process: 1. It is suggested to use 1500 mesh or 2000 mesh sandpaper to polish the original finish until it loses its luster. However, it should be noted that the grinding strength should be uniform at all points, and the corner areas should be polished in place; 2. It is suggested that after grinding, the corners and gaps should be cleaned with compressed air from top to bottom and from inside to outside, and special attention should be paid to blowing the ash clean. Wipe off the dust on the surface with sticky gauze after blowing, or dry it after cleaning with pure water (cleaning with tap water is not allowed, if metal particles remain in the paint film, it will cause defects); 3. Try to remove the parts that can be removed from the surface of the shielded car body. Cover the parts that cannot be removed. It is best to cover the transition area between the parts and the car body with a thin plastic film, so that a fine transition area will appear after the transformation, which is also a guarantee of good effect.