The primer exposed at the scratch is a deep scratch, otherwise it is called a shallow scratch. At present, the most basic methods to repair car paint scratches are:

(1) spraying method. The traditional touch-up method is used to repair scratches. The damaged area of the original paint is too large, the repair time is too long, and the effect is not ideal.

(2) Computer paint mixing and spraying method. Combined with computer paint mixing and deep scratch repair technology and new technology, this is a rapid technical repair, which can make the old and new topcoats better integrated and achieve the best adhesion.

In addition to the above two spraying methods, there are:

(3) Paint pen repair method. Apply scratches with a paint pen of similar color. This method is simple, but the paint adhesion at the repair site is not enough, which is easy to peel off and difficult to last.

If the area is not large, it can be partially repaired by computer painting. If the economy permits, it is best to paint the whole door, which will have a beautiful effect.