How to Deal with Yellowing After White Car Paint Repair?
2 Answers
Choose a reputable car detailing center and use a relatively neutral cleaning agent to remove dirt from the paint pores. Polish the car. The yellowing of the paint is mainly due to the yellowing of the clear coat layer. Polishing will grind the clear coat layer, which can improve the yellowing issue to some extent. Grind off the yellowed paint and then repaint it. When repainting, you can opt for a gradient spraying technique to reduce color differences to some extent. After repairing the yellowed areas, regularly maintain the car. Avoid frequent exposure to sunlight and pay attention to car cleaning to prevent the car from yellowing again.
I've seen this situation many times. The yellowing after touch-up painting is mainly caused by paint oxidation or UV exposure, especially with white car paint being the most sensitive. When dealing with it, you first need to assess the degree of yellowing. For mild cases, you can use professional polishing compound to lightly buff and remove the surface oxidation layer. If it's severe, you'll have to repaint it. Choose a reliable repair shop that uses high-quality paint, otherwise it might turn yellow again soon. I recommend regularly waxing your car after washing it, especially UV protective wax, which works well to block direct sunlight. Also, parking in the shade or using a car cover can effectively prevent this, as airborne pollutants can also adhere and cause discoloration. Other types like metallic or pearl white paints are even more prone to this issue.
