Repair method of car body floor corrosion: 1. After the chassis is rusted, remove rust and spray antirust liquid. First, use sandpaper to polish off the rust on the rusty part, and then spray the antirust liquid evenly.

2. The chassis is the protective disk at the bottom of the car, which often comes into contact with road sewage or stones. It is difficult to ensure that the vehicle will remain clean after a period of use. Instead of fixing problems, it is better to add more daily maintenance.

3, cleaning: when washing the car, you can clean the chassis by the way, which can protect the chassis to some extent;

4. Protection: Use the metal protective liquid correctly after washing the car, so that the chassis metal does not directly contact the air to avoid oxidation;

5. Cleanliness: If the carpet in the carriage is too wet, the chassis will rust. Therefore, the humidity of the carpet also affects the chassis, so the carpet should be inspected once every six months, and if the chassis has rust, it should be cleaned in time.

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