How to deal with black scratches on a white car?

[Devin]

The solution for black scratches on a white car is to perform touch-up painting. The method for touch-up painting is as follows: 1. Thoroughly clean the surface to be repaired before starting. 2. Use alcohol to remove wax, moisture, oil stains, and rust from the area to be repaired to enhance the adhesion of the paint film. 3. Shake the touch-up paint pen thoroughly before use, hearing the sound of the ball bearing for at least 30 shakes. 4. Open the cap of the touch-up paint pen in an upright position to avoid paint spillage when horizontal. 5. For deeper scratches, apply the paint repeatedly with a brush. 6. The area touched up directly with the pen may be uneven; after the paint film dries, use 2000-grit wet sandpaper to smooth it until the paint surface is level with the surrounding area.