How to Deal with Rust Spots on the Car Body?
2 Answers
The methods for dealing with rust spots on the car body are as follows: 1. Clay bar: You can use a clay bar to scrub the car body surface during washing. A clay bar is a paint-safe material that can remove stubborn stains from the car body surface. To remove rust spots on white car paint, you need to rub back and forth vigorously several times until clean. 2. Polishing: If the clay bar cannot remove rust spots on white car paint, you can use polishing to eliminate them. Polishing can also remove minor scratches on the car body. 3. Touch-up paint: When the above two methods fail to remove rust spots on white car paint, you can lightly sand the area and then use white touch-up paint to dab a small amount of paint. 4. Preventive measures for rust spots: Wash the car frequently, apply protective measures for the paint such as waxing, sealing, coating, or ceramic coating. Avoid parking under trees, as many trees secrete sap that is difficult to remove from the car. Also, wash the car immediately after rain, as 90% of rust spots on the car body are caused by acidic substances in rainwater.
I noticed some rust spots on my car, so I decided to fix them myself. First, I gently sanded off the rust using coarse sandpaper around 100 grit, being careful not to sand too deep to avoid damaging the steel panel. Then, I applied rust-proof primer and waited for it to dry before spraying on matching car paint. I've used this method to treat small rust spots on the door edges with good results, but it requires patience—if the rust is severe, it's best to take it to a professional shop. I also make sure to dry off water stains after washing the car, especially after rain when mud can trap moisture and cause rust. Regular waxing helps protect the paint and extend its lifespan.
