Is It Necessary to Repair Paint on a Bumper?

[VonChristian]

It is necessary to repair paint on a bumper. The steps for car paint repair are 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; 4. Open the cap of the touch-up paint pen while keeping it upright; 5. Apply the touch-up paint directly to the damaged area. Once the paint film has dried, use 2000-grit sandpaper with water to sand the surface smooth until the paint level is even. The car's paint surface consists of four layers, from the inside out: the electrocoat layer, the primer layer, the base coat layer, and the clear coat layer. The clear coat is the most susceptible to damage, and most minor scratches typically remain on this layer. Scratches on the clear coat can be removed through polishing.