What is the difference between repainted and original car paint?

[Norman]

Repainted and original car paint differ in that the repainted paint lacks an electrophoretic layer and involves different construction processes. The differences between repainted and original car paint are as follows: 1. Repainted paint lacks an electrophoretic layer: The biggest difference between repainted paint and original factory paint is that the repainted paint does not have an electrophoretic layer, only the color paint layer and clear coat layer are applied. This is precisely why issues like poor adhesion arise. Eventually, color discrepancies will appear after some time. 2. Different construction processes: During the car production line, the car body is painted using robotic arms, ensuring uniform paint application, followed by high-temperature baking at around 200 degrees Celsius. At that stage, the entire car is just a frame, with no assembly of components like the engine and interior AAA parts, allowing for high-temperature baking. However, repainting after the car leaves the factory means the interior and AAA parts cannot withstand high temperatures. Additionally, the dust-free level on the car production line is significantly higher than that in 4S shops or repair factories. Therefore, the painting quality naturally falls short of the original factory standard.