How to Deal with Car Rust?
2 Answers
Car rust needs to be addressed based on its location. The methods for handling car rust in different areas are as follows: 1. Car paint surface rust: Use very fine water sandpaper dipped in water to gently sand away the rust, but avoid sanding randomly. Sand in straight lines in the same direction. After completely cleaning, apply a layer of primer. For new scratches, you can directly apply touch-up paint. 2. Car chassis rust: The vehicle's underside can be treated with undercoating or sealing to protect the chassis from acid rain and corrosion, preventing the original protective layer from cracking or peeling. 3. Car brake disc rust: Continuous braking while driving can remove rust. If the rust is severe and the brake pedal or steering wheel shows obvious vibration, it's necessary to have a repair shop remove the brake disc for sanding to eliminate the rust. 4. Trunk rust: Regularly check and air out the carpet, or place some desiccants in the trunk. 5. Electrical system rust: Regularly inspect the circuit. If the wires show signs of aging, replace them promptly.
When I see rust on my car, I usually first assess the severity of the rust. If it's just surface rust spots, like on the edges of the door or hood, I use sandpaper to remove the rust, clean the area thoroughly, apply a layer of rust-proof primer, and then spray on matching topcoat paint after it dries to restore it. If the rust has penetrated the metal, such as holes in the wheel arches or undercarriage, it's necessary to weld in a steel patch or replace the affected part entirely, otherwise it will worsen over time. I always pay extra attention to rinsing off mud and salt when washing my car, and after drying, I spray rust-proof wax on the undercarriage as a preventive measure. If the car is often driven in humid areas, the risk of rust is higher, so I recommend getting a professional rust-proof treatment annually to ensure safety. DIY fixes for minor rust can save some money, but for serious issues, it's safer to spend a couple thousand yuan and let the experts handle it.
