What are the yellow spots on the car?

There are many reasons why small yellow spots appear on the surface of white car paint. Under normal circumstances, when a car passes through a factory or a construction site, the paint will generate static electricity, and the nearby iron powder will be adsorbed to the surface of the paint. As long as it touches water, it will gradually become a small yellow spot, and brake powder will also be produced when braking, which will adhere to the surface of the car body. The small yellow spots formed in these two cases belong to iron powder rust, so the iron powder remover is specially used to remove this small yellow spot, just spray it on it and wait.

I hope it helps you.