How to Deal with Rusty Car Doors?

[MacNorah]

If the rust appears on the surface, use water sandpaper to grind off the rust and then spray a layer of anti-rust paint. If the rust has damaged the primer, the rust must be ground off, followed by primer spraying and then topcoat spraying. Below is more information about rust: Causes of rust: Due to prolonged exposure to wind, sun, and rain corrosion. Methods to prevent car rust: (1) Avoid using car covers frequently: During windy and rainy weather, if the car is parked outdoors, the inner layer of the car cover will repeatedly whip the paint, creating numerous tiny scratches on the car body. If sand and dust get inside the cover, the number of scratches will increase. (2) Apply toothpaste as a rust prevention method. (3) Perform glaze sealing on soft car paint surfaces.