What to Do When White Cars Have Stubborn Spots That Won't Wash Off?

[DeTravis]

Minor spots can be cleaned by dipping a clean cloth in alcohol or gasoline for gentle scrubbing. Avoid using harsh chemicals as they may damage the topcoat. Alternatively, you can lightly sand the black spots with specialized fine-grit sandpaper using water, then spray with matching canned paint 2-3 times. Below are solutions for yellowing white car paint: 1. Wash the car frequently: Most cars are parked outdoors nowadays, exposed to wind, rain, and sunlight which oxidize the paint. Rainwater contains large amounts of acidic substances with corrosive properties. If not cleaned promptly, the car will lose its shine and yellow faster. White cars require more frequent washing compared to other colors. 2. Waxing: Another reason white cars easily turn yellow is that the paint surface has numerous microscopic gaps invisible to the naked eye, which absorb dust particles from the air, accelerating paint oxidation. The best solution is waxing, forming a protective film over the paint to effectively prevent yellowing. 3. Glaze sealing maintenance: Scratches are inevitable for cars, and repainting often results in color mismatch. Therefore, performing a glaze sealing treatment helps maintain the paint's luster.