Do I Need to Sand Off the Original Paint When Repainting the Bumper?

[VanVivian]

Bumper repainting requires sanding off the original paint. The functions of a car bumper are as follows: Safety aspects: The bumper serves as a buffer during low-speed collisions, protecting the front and rear body of the car. It also provides some protection for pedestrians in the event of an accident. Aesthetic aspects: The bumper is decorative and an important component in styling the car's exterior. It also has certain aerodynamic effects. Impact resistance: It reduces injuries to passengers during side-impact collisions and enhances the door's impact resistance. The bumper increases passenger safety and provides a sense of security.