Is it necessary to remove the old paint for a full car repaint?

[OAbel]

Yes, it is necessary. If the original car paint is not treated during a full repaint, the new putty and paint cannot adhere well to the surface, which can easily lead to peeling and bubbling later on, making the entire car look poor. Additionally, if new paint is applied over the old paint, the high pressure from car wash jets can easily cause the new paint to peel off. Additional information: The old paint can have some influence on the color of the new paint. Car paint consists of several layers. The top layer is the clear coat, followed by the base coat, then the primer, and finally the electroplated layer. Methods to remove the old paint typically involve sanding with sandpaper or using asphalt cleaner to dissolve the paint.