How to Repair a Black Matte Bumper?
1 Answers
The method to repair a black matte bumper is as follows: 1. Clean the bumper thoroughly; 2. Dry off any moisture; 3. Spray the surface; 4. Sand and wipe clean; 5. Perform flame treatment; 6. Electrostatic dust removal; 7. Spray painting operation; 8. Apply gray primer; 9. Spray the pre-mixed color paint, followed by a clear gloss paint, then bake and air dry. The functions of a bumper are: 1. Safety protection; 2. Absorbing external impacts; 3. Protecting pedestrians; 4. Enhancing aesthetics; 5. Improving the vehicle's aerodynamics. A bumper consists of an outer panel, cushioning material, and a crossbeam. The outer panel and cushioning material are made of plastic, while the crossbeam is formed from cold-rolled sheet metal pressed into a U-shaped channel. The outer panel and cushioning material are attached to the crossbeam, which is then connected to the vehicle's frame longitudinal beams with screws.