There are many reasons for car paint peeling off, one is external collision or exposure, and the other is internal cause, which means that the construction is not professional or the quality of the product itself is caused. let’s talk about the causes of car refinish paint peeling caused by internal factors:
1. The surface of the car repair body is not clean thoroughly before painting, and there are still moisture, oil, dust, sand, etc., and these pollutants will reduce the adhesion between the paint layer and the substrate. If the substrate is too smooth, it will also affect the adhesion of the car paint film;
2. Improper metal treatment, incorrect use of anti-rust epoxy primer, and the automotive paint is not mixed thoroughly;
3. When spraying the primer, the primer film is too thick and too hard;
4. Spray the topcoat immediately before the primer layer is dry;
5. The quality of the auto paint is too poor, and the adhesion between the primer and the top coat is not high. It is recommended to use high-quality products and matching thinners;
6. The construction environment does not meet the requirements, the humidity is too high, the temperature is too high or too low.
To sum up, in the process of construction and spraying lacquer, you must be careful so as not to touch up the paint in the future; in case the paint has peeled off, remember to touch up the paint in time, because it will continue to expand the paint area after a long time.
