When unsightly rust spots begin to show up on your car's paint job, it can give the vehicle an aged and neglected look. Thankfully, rust isn't permanent and there are several pro-approved cleaning chemicals and methods available that make it easy to remove these unwanted marks from white car paint.
The most important thing to remember when removing rust is to not use acidic products. These are likely to affect the clear urethane that protects the paint and can even remove the paint in some situations. A pH-neutral product, like Evapo-Rust, will work best to remove rust without affecting the paint.
Start by thoroughly washing the affected area to remove any dirt or other debris. Next, apply the chemical iron remover according to the product instructions. Allow the product to soak into the stain for 30 minutes to overnight, depending on the severity of the mark. Rinse the area, then dry it with a towel. Inspect the mark to determine if it has been removed and repeat the process as needed.
Alternatively, you can also try mixing one part baking soda with two parts vinegar to create a paste that is then applied to the stain. Let the mixture sit for 30 minutes to overnight, then rinse and dry the area. Inspect the mark to determine if the rust has been removed and repeat the process as needed. Whatever method you choose, be sure to test any cleaning solution on a small and inconspicuous area of the car's paint to ensure it won't cause damage or leave behind other unsightly marks.