Does painting require removing the original paint?

[EloiseRose]

Painting does require removing the original paint because repainting will increase the thickness of the paint film, and the painted area will be higher than the surface of the original paint. Therefore, the original paint must be cleaned off before applying new paint; otherwise, the paint surface will be uneven and significantly raised. Precautions for full vehicle painting: Pay attention to color differences; Take protective measures; Also, pay attention to the gun pressure and working environment during painting; Be mindful of the baking time. The general painting procedure involves first performing metalwork, sanding down the original paint and underlying layers of the area to be painted to make it two layers of paint thinner than the standard paint surface. Then, apply putty, mix the paint, spray the paint, bake it in the oven, and let it air dry for more than ten hours.