Does Replacing a Trunk Lid Require Painting?

[MacHarrison]

Replacing an original trunk lid requires painting because the original trunk lid does not come with a painted surface. Therefore, it needs to be painted at the 4S shop before installation. The automotive body paint is complex and consists of four layers. From the inside out, they are the electrophoretic layer, the primer layer, the base coat layer, and the clear coat layer. Each layer has its unique painting process and function. Electrophoretic Layer: After the entire car body is assembled, robots immerse the body in an electrophoretic tank to form an electrophoretic layer. The main function of this layer is rust prevention. Primer Layer: After the electrophoretic layer is formed on the body surface, robots spray the primer layer. This layer also serves to prevent rust and enhances adhesion to the next layer of body paint. Base Coat Layer: Above the primer layer is the base coat layer, which primarily serves an aesthetic purpose. The various car body colors we see daily are presented by this layer. Clear Coat Layer: The outermost layer is the clear coat, which protects the base coat and enhances its gloss. The clear coat is the most vulnerable layer, as most minor scratches typically remain on this layer.