How to polish the car paint, how to polish the car paint

Automobile polishing is the process of using abrasives to remove and brighten the fine injuries and marks on the paint surface through friction. How many times you can toss depends on the level of the master and the fineness of the abrasive used. With a fine scrub, you will definitely wear off less each time, and with a relatively coarse scrub, you will grind off more.

Generally speaking, the original car uses high-temperature paint, that is to say, this paint is baked in a high-temperature dust-free environment of more than 200 degrees, the paint layer thickness is medium, but the hardness is high, so in the case of fine abrasives, most of them can only be polished 3 times; If it is a room temperature paint that is sprayed later, that is, we spray the paint at room temperature in the paint booth of a relatively regular repair shop in 4s, in a pheasant repair shop. These shops only have a paint drying room, but they exaggerate it as a "paint room", and those who don't understand it think that the paint sprayed by the manufacturer is the same, but in fact, the gap is big. Such a normal temperature paint surface is very soft, and the poor paint will be very greasy, so most of them can only be polished twice.

Please note: At present, it is impossible to spray the "original paint" in the market, because the store will not build a high-temperature paint room in order to spray you with a Jizi board or a car door or something, and the investment is quite large. High-temperature paint can only be used for high-temperature paint if the metal parts are not loaded into the car and are still in the form of spare parts.

It is impossible to use the original paint for the car parts that leave the factory, and can only use similar normal temperature paint.

1. Hello, glad you asked.

2. Definition: A processing method that uses mechanical, chemical or electrochemical action to reduce the surface roughness of the workpiece to obtain a bright and flat surface.

3. The cars are treated with a special polishing machine.

Using dedicated polishing wax and polishing wheel equipment, it is recommended to go to a professional place for processing.

1. How to polish car paint?

For the car paint that has been cracked or scratched, it can be ground by grinding these paint surfaces, and then polishing them until they are finally restored, and if these three aspects are completed, a process of polishing the car paint is actually completed.

2. What should I pay attention to when polishing the paint?

When polishing the car, the operator needs to work accordingly according to the actual situation of the paint, if the waxing treatment has been done, it needs to be polished, but when the polishing is carried out, it must be remembered that the car can not be treated more than five times.

Although paint polishing is a good way to make the car paint surface smooth, however, this method is not suitable for frequent use, because the paint surface of the car paint will become a very thin layer if the number of polishing times is too large, which will have a negative impact on the protection of the entire car paint surface.

How do you polish car paint? What do I need to pay attention to when polishing the paint? In the process of using our car, the paint surface on the car is often oxidized, or what kind of scratches are encountered, so that the smoothness of the entire paint surface will become very low, if you want to make your car surface smooth as before, there is a way to try it, often through the treatment of this method can make the car paint smooth and flat, and this method is polishing.

1. How to polish car paint?

For the car paint that has been cracked or scratched, it can be ground by grinding these paint surfaces, and then polishing them until they are finally restored, and if these three aspects are completed, a process of polishing the car paint is actually completed.

2. What should I pay attention to when polishing the paint?

In the polishing of the car, the operator needs to work accordingly according to the actual situation of the car paint, for those who have just bought the car not long ago, often only need one step to restore the paint surface of the car into the original appearance, however, if the waxing treatment has been done, it needs to be polished, but when the polishing is carried out, it must be remembered that the car can not be treated more than five times.

Summary. Although paint polishing is a good way to make the car paint surface smooth, however, this method is not suitable for frequent use, because the paint surface of the car paint will become a very thin layer if the number of polishing times is too large, which will have a negative impact on the protection of the entire car paint surface.

The method of car polishing: first of all, the body of the car must be cleaned, and all the dust particles on the body must be removed, so as to better avoid secondary damage to the car paint.

At this point, it is necessary to enter the grinding step. You need to look at the size of the scratches on the body of the sail, and then choose the right size of water sandpaper to sand. Then choose a polishing machine and combine it with polishing wax.

Where the body has been polished, do a fine polishing. During the polishing process, the force needs to be controlled, and the body should also be polished in order.

After the polishing is completed, it is also necessary to use a mirror treatment agent to achieve the effect of reducing the mirror surface. In this way, the whole step can be restored, and the mirror effect of the body can be restored, and finally polished and varnished.

When polishing the car, you need to pay attention to the strength of different polishing positions, do not grind the paint through, and use a large towel to cover the front windshield, otherwise the wax mountain key hail will stick to the wiper during polishing and it is difficult to clean.

Car polishing time

1. Car usage rate: If you use the vehicle frequently, you will suffer different injuries according to different conditions. For example, the ultraviolet rays of the sun, or acid rain, sun and rain, it can cause the paint to blur.

2. Automobile driving environment: There is a difference between heavy industry cities and other cities, so it will also be affected by an environment, resulting in some oxides and dirt on the paint surface.

3. Car parking place: For example, if you often park outside the factory, the paint surface will produce flying paint, resulting in a blurry paint surface and a rough touch. Often parked outside some restaurants, the surface of the car paint will be bright and produce a lot of oil film, which will also cause the paint to not shine.

After the surface of the car is sprayed, it needs to be sanded and polished. Here's the polishing process for the paint: Clean the entire vehicle:

Clean the whole vehicle with a paint cleaner with strong detergency. When using the cleaning agent, avoid new scratches caused by particle dust during grinding. Water sandpaper sanding:

For coarse-grained, fine sandpaper marks on the surface to be coated.

After the surface of the car is sprayed, it needs to be sanded and polished. Here is the polishing process of the paint:

Clean the entire vehicle:

Clean the whole vehicle with a paint cleaner with strong detergency. When using the cleaning agent, avoid new scratches caused by particle dust during grinding.

Water sandpaper sanding:

For defects such as coarse grains, fine sandpaper marks, and flow marks on the coated surface, wrap the small rubber liner with sandpaper dipped in the water and gently polish it until smooth.

Coarse grinding and fine grinding:

Use machine grinding and coarse abrasive paste to coarsely grind the traces of water sandpaper, and then use abrasive paste to polish and finely grind.

Polishing: Mechanical polishing machine and mirror treatment agent are used to throw away the rotation traces left by the coarse abrasive paste to achieve the mirror polishing effect of the paint film.

Hand glazing: After polishing, wipe the polishing paste after polishing, immediately wipe all polished areas with cotton yarn dipped in varnish wax, and then wipe off the excess wax with dry cotton yarn.

What is the cause of peeling car paint?

The reason for peeling is that the underlying surface treatment is not good, the spraying primer method is improper, etc. The specific causes of peeling and ways to prevent peeling are as follows:

Specific causes of paint peeling:

The bottom surface treatment is not good, and it is polluted by wax, grease, water, rust, etc. No metal surface treatment agent is used on the surface of steel or aluminum, or the type of treatment agent used is incorrect; When spraying, the surface temperature of the substrate is too high or too low; Improper primer application, wrong type of thinner used or poor quality line code; The compressed air gas pressure is too high.

Measures to prevent paint peeling:

Thoroughly treat the surface of the substrate to be sprayed; The steel or aluminum surface must be sprayed within 30 minutes after treatment with the correct metal surface treatment agent to prevent rust on the surface of the substrate; When spray drying, it should be within the recommended temperature range; Spray the primer using the correct process to ensure that the primer layer is fully cured before the topcoat is sprayed.

How is car paint polished? @2019