Many car owners will go to the 4S shop for painting maintenance after the paint falls off, but I don't know what the painting process is. The following car owner friends introduce the car painting process. 1. Clean the scratch with clean water, and then clean the area around the scratch with special cleaning solution. 2. Sprinkle some water on the fine sandpaper and polish the scratched part. 3. Fill and smooth the scratches with putty ash. After the putty is completely dry, polish it with fine sandpaper until it is smooth. Unevenness will affect the effect of painting. 4. Stick a barrier around the parts that need painting to avoid spraying to other places when painting, which can play a certain protective role. 5. Wear masks, gloves, goggles and other equipment. 6. Before painting, spray the paint on the iron frame or other places to judge whether the color difference of the car paint is consistent with the original car paint. If it is correct, start drawing. First, put the nozzle at a moderate distance, not too close, don't spray it all at once, spray it several times more, and the effect will be better. 7. When the paint dries after painting, if you find that the boundary between the original car paint and the repaired car paint is unnatural, you can gently polish it with fine sandpaper dipped in some water to look more natural. 8. Finally, wax the repaired parts to make them look more shiny. Painting requires professional body and painter to wear professional protective equipment. Try to choose a regular 4S shop or repair shop when painting, because the technology and quality are more guaranteed.