First aid supplies: fine wax and coarse wax.

Slightly scratched paint surface is on the top coat surface, and waxing can completely repair it. Treating with mixed agent, the wiping method is linear wiping, and then waxing. You can use coarse wax first, then fine wax, from the inside out in the same direction, so that almost all fine scratches are removed. Of course, there are more economical methods, such as repairing with toothpaste, gently applying it to the shallow scratches, and then wiping it counterclockwise with soft cotton cloth for several times, which not only reduces the scratches, but also avoids the air erosion on the car paint wounds.

2. No scratches on the primer.

First aid supplies: fine wax, touch-up pen.

Slightly larger scratches can be saved with a touch-up pen. The GM store sells touch-up pens. Car owners can quote their car models and official color names to buy touch-up pens with appropriate color numbers, and the general price is 40-50.

Yuan. Shake the pigment in the touch-up pen evenly before use, and make up the primer like nail polish. A certain amount of thinner can be added to the touch-up pen, so that it can be sprayed smoothly and carefully at the position where it needs to be repaired. When the touch-up pen is dry, you can wax it.

3. The scratch of the primer has been seen.

First-aid supplies: scratch-removing rust inhibitor, self-painting

For serious scratches, if you can see the color of the underlying primer, it depends on the scar. Generally, the bumpers, rearview mirrors and wheel eyebrows of some cars are all engineering plastics and will not rust. Paint repair depends on the owner's own requirements. However, if these serious scars appear in other parts of the car body, they need to be touched up. Otherwise, even a small damage, the steel plate will start to rust. Even if it is made up by then, it will be difficult to prevent rust. The owner can wash the car and dry it first, and apply rust remover to the scratches.

10~ 15 minutes. After wiping off the rust remover with a paper towel, avoid scratching and continue to rust.

4. Scratch depression treatment

First aid products: dent repair technology

If the scratches and dents left on the car surface after being collided do not fall off or the paint falls off, the perfect repair effect can be achieved through the dent repair technology. It takes about 20-40 years to repair a depression.

Minutes, greatly reducing the cost (about only traditional sheet metal and painting)

50%), and will never fade. The tools needed to repair dents are not complicated. The crowbar is mainly used to push the sinking steel plate from the inside out. This technique must be delicate, and fine-tuning bit by bit is the key. Then use a rubber hammer to knock from the outside to the inside to repair the overall modeling work, and finally use a sharp object such as a pencil head to fine-tune the protruding marks of the car body.

6. Bumper scar treatment method

First-aid products: special chemical synthetic agents

If the bumper is only slightly scratched, it is not serious, but it is ugly with scars, so it must be repaired. The owner can use a special chemical synthetic agent to repair the bumper. The operation is very simple and anyone can repair it. The owner cuts off the burr on the bumper first, preferably with a knife to make the whole arrangement smooth, and paints the hole with putty to make it smooth. Prepare putty close to bumper color. Putty is composed of putty main agent and curing agent, and coated with scraper. The trick is to embed it in the scar and go through it.

After the putty is firm for 2-3 hours, polish it with water sandpaper, and then paint it a week later.