Why Are There Dense White Spots on Black Cars?
2 Answers
Black cars with dense white spots are usually affected by overspray or oxidation. Methods to remove white spots from black cars include: 1. Using quick-acting cleaning wax; 2. Using bug and tar remover; 3. Wiping with alcohol; 4. Using a clay bar. For white spots that are not fully solidified, they can be removed with a clay bar. Before removing the white spots, first wash the car body with clean water or car wash liquid, then gently wipe the spots with a clay bar soaked in warm water while spraying water. Avoid applying too much pressure to prevent tiny particles from scratching the car paint. Stop the operation once the white spots are completely removed.
My friend's black car also frequently experiences this issue. Those densely packed white spots mainly come from road grime and air pollutants. The most noticeable are tar particles, especially when driving in summer or on freshly paved roads. The splashed liquid tar cools and hardens on the car paint, turning white. Another culprit is iron dust, particularly for those who often drive on highways. Metal debris from brake pads and road surfaces gets carried by airflow onto the car paint, oxidizing to form rust spots. Tree sap and bird droppings can also leave marks. If parked near trees or utility poles, these white dots become clearly visible after just a few days without washing. Using tar remover during regular car washes can effectively eliminate them.
