The difference between the original paint and the touch-up paint lies in the phosphating layer and electrophoretic layer of the automobile, which can only be done by automobile manufacturers, but not by other 4S shops. They can only repair the top three layers, that is, the middle coat, the colored paint layer and the varnish layer. Immersed in the electrophoretic solution, the car body is the cathode at this time, and the electrophoretic coating will move positively charged coating ions to the car body surface under the action of a certain voltage, generate insoluble substances under the action of alkalinity, and finally form a protective film on the car body surface.

In fact, the original paint is the same as the original engine oil or other accessories. Produced by a professional manufacturer, with the label of the automobile manufacturer's own brand. This is the so-called original accessories, so the original paint is the car paint used in 4S shops. This is the requirement of the original assembly process, and the 4S workshop can't operate. Moreover, this electrophoresis process is very helpful for the anti-corrosion of automobiles, or for the anti-rust effect of primers; And the car paint you made up in the 4S shop, the effect is definitely not as good as the original paint.

Before the automobile is formed, the paint temperature in the garage is very high, which will harden the paint. But in the later period, the paint temperature can't be reached. In fact, it can reach the paint temperature, but not too high. After all, there are various lines in the car, and the high temperature will hurt the original car lines! The price is more expensive. The consumer cried for a pair of paint from 300 yuan, which was not lower than that from 800 yuan, including the insurance company's claim, not the price of the paint. 99% of 4S shops in the repair shop can't paint, but paint, some plastic parts really can't be painted! Parts such as door panels and machine covers can be removed and baked separately, but don't forget that these parts will pass through the electric swimming pool of the car factory, and there is no condition to pass through the electric swimming pool for maintenance, so the car paint after maintenance can hardly reach the original level.

Above the color, the 4s shop has the original color number paint mixing, and the paint color difference is small. There is no original color number in the auto repair shop outside, and I don't know the brand of the original paint. Some colors will have a certain color difference after spraying, and of course 4s stores will also have a certain color difference.