Reasons for Many Small Yellow Spots on White Cars
2 Answers
White cars develop many small yellow spots due to rusting iron particles and oxidation of the paint upon contact with air. More details about the occurrence of these small yellow spots are as follows: 1. Iron particles in the air adhere to the paint surface of white cars due to static electricity. If the car is not washed for a long time, these iron particles rust after rain, resulting in these small yellow spots. 2. When a car passes by factories or construction sites, static electricity on the paint surface attracts nearby iron particles. Additionally, brake dust generated during braking can adhere to the car's surface. When exposed to water, these particles turn into small yellow spots. 3. Prolonged exposure of the car paint to air: Factors such as air humidity, salinity, the pH level of rainwater, UV radiation intensity, and the corrosiveness of car wash detergents affect the oxidation process of the paint, leading to the formation of small yellow spots.
My friend who drives a white car always complains about these small yellow spots, which are actually caused by brake dust and iron particles sticking to the paint and oxidizing. They are more likely to appear in areas with high air pollution, such as cities where factory emissions and road dust accumulate over time, forming unsightly yellow spots. White cars show dirt more easily, and light-colored paint absorbs heat quickly, accelerating the oxidation process. Don't worry too much about washing the car too frequently as it can damage the paint. It's recommended to regularly clean the car's surface with a neutral detergent and avoid contact with acidic substances. Remember not to use strong acids for cleaning, as they can corrode the car's paint.
