How to Remove Yellow Stains on a White Car?
2 Answers
Methods for removing yellow stains on white cars are as follows: 1. Yellow stains caused by dust and impurities: When driving in areas with heavy dust, dust and impurities can adhere to the white paint surface. Some impurities are particularly stubborn and cannot be removed with regular cleaning, such as asphalt and bird droppings. These sticky impurities require specialized cleaning agents for soaking, stain removal, and rinsing to be completely eliminated. 2. Yellow stains caused by paint aging: If the car's paint surface is exposed to prolonged sunlight and rain without timely care, it can easily lead to paint aging and the formation of spots on the surface. Some cars parked for extended periods or soaked in acid rain may even suffer severe corrosion. In such cases, the affected paint surface needs treatment; using polishing wax to grind and polish the damaged paint can help remove the yellow stains.
A few days ago, while washing my car, I noticed several egg-yolk-like stains on the roof that wouldn’t come off even after using a high-pressure water gun for a long time. Later, I went to the auto repair shop and asked about it. The mechanic said these yellow stains fall into three scenarios: if it’s ordinary tree sap or bird droppings, you can remove them by gently rubbing with a clay bar dipped in water; if it’s rust particles from rainwater that have seeped into the paint, you’ll need to spray a specialized iron remover, wait for it to turn purple, and then rinse it off; the most troublesome case is paint oxidation turning yellow—my five-year-old car had this issue, and in the end, only a full polish could restore its shine. Remember, never use a steel wool pad to scrub hard—last time, my neighbor scratched right through the clear coat.
