Can car doors be partially repainted?

[SanAlexa]

Car doors can indeed be partially repainted, but the results may not be ideal, potentially leading to color discrepancies. A car's paint surface consists of four layers, from the inside out: the electrocoat layer, primer layer, basecoat layer, and clearcoat layer. The electrocoat layer serves as rust protection. After this layer is applied to the car body surface, robots spray the primer layer, which also provides rust protection and enhances adhesion to the next paint layer. The basecoat layer is primarily for aesthetics. The outermost layer is the clearcoat, which protects the basecoat and enhances the glossiness of the car's paint. Most minor scratches typically occur on the clearcoat layer and can be removed through simple polishing.