How to Remove Rust from Car Body?
2 Answers
Methods for removing rust from car body include: 1. Toothpaste for rust spots: Apply toothpaste to the rusted area by hand, wait for some time, and reapply before the next car wash. The rust will be reduced after washing; 2. Touch-up pen for rust marks: For minor rust spots, first gently sand the rust with water and sandpaper, then apply a matching touch-up pen. Once dry, lightly sand the area smooth; 3. Rust remover: Car rust removers are low in VOC (Volatile Organic Compounds), non-toxic, and non-corrosive. Spraying it will cause the rust to expand and spread over time. This method is simple and convenient.
I've tried rust removal on the car body several times with good results. First, wash the car thoroughly and choose a sunny day to dry the rusted areas. Gently sand the spots with coarse sandpaper or a wire brush until clean metal is exposed, being careful not to damage the good paint. Then apply rust inhibitor and let it dry completely, which may take a day or two. Next, spray a layer of primer for protection, followed by using filler paste to smooth out small dents, and finally spray matching car paint. The whole process requires patience - rushing may cause bubbling or peeling. Remember to mask surrounding areas before painting to avoid contamination. After regular car washes, promptly dry the car, especially water-prone areas like the chassis and wheel arches. Applying an underbody rustproofing spray can extend the protection. If the rust is too deep or covers a large area, it's safer to have it professionally treated.
