Why Does a Car's Paint Naturally Peel Off?
2 Answers
There are many reasons for paint peeling, mainly falling into three categories: 1. Impact: Paint peeling caused by scratches or collisions; 2. Spraying Quality: Paint peeling due to issues during the spraying process, such as low-temperature painting, expired paint, excessive dust on the car body surface, overly thick paint film, poor primer quality, or problems with putty quality, among others; 3. Body Panel Quality: Issues with the quality of the body panels themselves. For example, high levels of sulfur, phosphorus, or other impurities in the body's sheet metal can lead to electrochemical corrosion, causing rust in the internal sheet metal of many new cars within about 3 years. There are numerous causes of paint peeling, including excessive car washing and prolonged exposure to UV rays, which are also significant factors.
Hey, I've got a lot to say about car paint peeling off by itself. After all these years working with cars, the most common cause is environmental damage. Just think about it – the sun shines directly every day, and UV rays can degrade the resin in the paint until it flakes off like brittle paper. Rain isn’t innocent either, carrying acidic substances that eat away at the protective layer. And let’s not forget the dust and pollutants in the air that stick to the car, slowly wearing down the paint. I’ve personally seen cars parked in industrial areas start peeling within months, like old tree bark. If left untreated for too long, it can even lead to rust and damage the body. So, whenever possible, park in a garage to avoid pollution sources, and apply wax regularly to minimize harm. Don’t wait until the problem gets serious before you panic.
