1. The bottom layer influence of car painting
Before spraying the top coat, the appearance of the bottom layer has a great influence on the color difference of the top coat. If the color of the bottom layer is different, or the color of the bottom layer is different, or the middle coat of a different color (if there is no middle coat, it means the primer), the upper side The color difference of the topcoat is very different, and some can be recognized by the naked eye.
For example, the top coat sprayed out by the gray middle coat and the white middle coat, one color is black and the other is white. Sometimes part of the repair is done on the surface of the topcoat, and the color difference of the repaired paint surface will be very serious. In addition, the surface roughness of the bottom layer is different, which will also cause color difference to the car paint finish painted by auto paint spray gun.
2. The influence of other factors in car painting
Different batches of color paint and varnish, due to the difference in paint production technical conditions, or the elements of raw materials, will also cause color difference to the automobile spray paint coating.
The time interval between other topcoats and finishing paints using "wet-on-wet" construction technology is different, which will also affect the paint coating. The size of the straight wind speed when spraying paint also affects the color difference of the topcoat.
The paint application viscosity also has an effect on the chromatic aberration. If the same paint is applied with different viscosity, the color difference value of the coating is different, and the difference is very big. This is because the construction viscosity affects the appearance quality of the automotive paint film.