How to Repair Rust at the Bottom of a Car Door?

[VanEmiliano]

Here is an introduction on how to repair rust at the bottom of a car door: 1. If the rust appears on the surface and covers a small area. You can use water sandpaper to grind off the rust, then spray a layer of anti-rust paint; if the rust area is small, scrape off the rust, clean it with sandpaper, and then perform touch-up painting. 2. If the car door is severely rusted with large areas of paint peeling. Completely remove the rusted paint from the door, then fill and level it with putty. After the putty hardens, proceed with repainting; if the car's metal sheet is rusted through, the rusted part needs to be cut out and re-welded; if the damaged area is large, it is not recommended to repair it, and replacing the entire piece is more advisable. Car rust should be dealt with promptly, and preventive measures should be taken. Clean the car body promptly after rain, and any scratches or damage on the car's surface should be repaired immediately to avoid oxidation and rusting.