1. Rust on paint surface: Rust on paint surface is a small rust spot on car surface. For this slight corrosion, we can polish it with water sandpaper first, and then apply it with a touch-up pen.

2. Chassis rust: As the chassis of the car is the closest part to the ground, it will inevitably rust during the driving of the car due to bumps or water accumulation on the road. In view of this situation, we can protect the chassis by means of chassis armor or plastic seal to further improve the acid resistance and corrosion resistance of the chassis.

3, brake disc rust: car brake disc is iron, so when it encounters rain, it will produce iron oxidation, resulting in some rust on the surface. In view of this situation, we can achieve certain rust removal effect by continuous braking during driving. If it is serious, you can go to a special repair shop to remove its parts and polish them to achieve the effect of rust removal.

In fact, many cars will have rust problems, so we usually need to pay attention to the maintenance of cars. After all, rust in some parts of the car is very prone to problems.