How to repair the color difference of car paint? How to spray the car paint if it needs to be over-colored?

Car painting refers to applying a layer of paint on the surface of the car to protect the car. Car painting generally uses baking paint. In the car manufacturing plant, after the frame and shell are welded, the next process is painting. There are ordinary paint, metallic paint, and pearlescent paint. So how to repair the color difference of car paint? How to spray the car paint if it needs to be over-colored? Let's take a look at the introduction of Encyclopedia Knowledge Network below!

Contents of this article

1. How to repair the color difference of car paint

2. How to spray the car paint when it needs to be colored

3. Will the yellow spots on the car corrode the paint?

How to repair car paint color difference

If the car has a color difference, you need to repaint it, but you don't need to repaint the whole car. You can use the transitional spraying technology to repair the paint, so that similar colors will not look so obvious. If you are very concerned about the color, it is recommended to use imported paint to avoid discoloration in the future. There are generally two situations when the car has a color difference: one is that the color ratio is not adjusted well, then repaint it; the other is that the paint is not dry.

How to spray the car paint when it needs to be colored

Check the tools you need before painting. Use clean water to clean the car body; use a wooden block to level the sandpaper, then use water to polish the edge of the scratch. Grind until the edge is smooth and the transition from the paint to the primer is smooth. Pay attention to the range of polishing and try not to damage the original car's good paint. After polishing, clean it and wipe it dry with a dry towel; pour the putty on the scraper and use the scraper to evenly apply the putty on the scratch surface. The putty should be slightly higher than the paint surface after filling. After filling, wait for the putty to dry completely before proceeding to the next step; after the putty is dry, use sandpaper and some water to polish the putty. Grind until the putty surface and the paint surface are parallel, and there are no edges and corners when touched by hand, and it is smooth. After cleaning and drying, you can proceed to the next step; before painting, first block the important parts around the scratch; when spraying color paint, pay attention to the painting technique. Wait 3 to 5 minutes after each layer of spraying before spraying the next layer. Repeat the spraying several times until the scratches and putty are completely covered, and there is no difference in color with the surrounding paint.

Will the yellow spots on the car corrode the paint?

These small yellow spots are caused by iron powder in the air sticking to the car after it rains. If you don't wash the car for a long time, the iron powder will rust and become these small yellow spots. We can buy a bottle of iron powder remover online, and then spray the iron powder remover on the car after washing it. After a few minutes, you will find that the small yellow spots are dissolved, and then you can wash the car. If there are still stubborn spots, just wipe them with volcanic mud.