How to Repair Rusted Car Side Skirts with Body Filler?
2 Answers
Car side skirt rust repair with body filler methods are: 1. If the rust is not severe, first use ultra-fine water sandpaper dipped in water to gently sand off rust spots, completely clean it, and apply a layer of primer to ensure the rust does not spread or worsen; 2. For new scratches, clean and apply primer directly. Car side skirts refer to the skirt panels installed on both sides of the vehicle body, with functions including: 1. Reducing adverse airflow generated during driving; 2. Enhancing handling stability at high speeds; 3. Preventing vehicle drift during high-speed operation. Measures to prevent car side skirt rust: 1. Try to park the car indoors; 2. Ensure the vehicle is parked in a dry environment; 3. Promptly clean sludge from gaps and the floor area inside the car.
I just did some rust repair on the side skirts myself. It's pretty simple but requires attention to detail. First, you need to clean off the rust spots thoroughly. I used sandpaper or a rust removal brush to grind away the surface rust—don't just focus on one spot, or the rust will spread. Next, wipe it down with a damp cloth and apply a bit of degreaser to completely remove any oil residue, ensuring the filler adheres properly. Then, apply automotive body filler to smooth out the dents—don’t lay it on too thick at once; wait about half an hour for it to dry before applying a second layer. When sanding, start with coarse sandpaper to shape it, then switch to fine sandpaper for a smooth finish. Finally, don’t forget to spray on primer to prevent rust, followed by a topcoat for protection. The whole process takes about two hours and costs little, but it can restore your car’s appearance. If left unrepaired, rusted-through side skirts can compromise the car’s structural safety. Remember to rinse this area more thoroughly during regular car washes.
