Car polishing How to use sandpaper to grind off the paint is not easy to get through

It's easy for people to get a car repair.

When the car is polished, the paint is thrown away, and it is best to respray this piece or a whole piece or the whole car paint.

The topcoat is thrown away to reveal the primer, and the master with high skill is found to make up the part that has been thrown away, which is not easy for ordinary people to see. If you spray paint this whole piece, ordinary people can't see it. The whole car is completely painted, and the general level is a little lower and connoisseurs can't see it.

Throwing away the car paint and repainting it is the only remedy.

You go buy a touch-up pen first. Fill in the paint finish. Choose the right color. There may be a slight deviation. Then buy an E8 gloss wax. Put the light on it. That's it.

Use a paint pen a little bit, then sandpaper and finally polish with polishing wax.

There are several cases of sandpaper for polishing.

1 very deep scratch.

That is, deep scratches are polished into small scratches and then polished.

This makes the polishing faster!

2. Defects in the paint surface itself.

For example, hanging streams. Orange peel must be sandpaper.

The outermost part of the paint is varnish.

The second layer is the natural color (black car is black paint).

Generally, sandpaper is used.

It is the varnish that destroys.

Polishing will hurt the thickness of the paint.

a: I don't think you can sandpaper it before polishing.

If you don't polish it without sandpaper.

In fact, it will take you 1 times as long.

Like a scratch.

You sandpaper and then polish.

You need 5 minutes.

But if you polish it directly.

This scratch is going to be disposed of.

It takes 8-10 minutes.

I generally use sandpaper when dealing with this situation.

There is also the 4S paint treatment process is relatively backward.

1. First of all, there is a special lacquer beauty abrasive.

This one is mainly for the treatment of scratches.

2. Special polish for paint surface.

Treatment of paint aperture problems caused by the varnishing and polishing process of paint surface 3 Paint surface protector.

Domestic called paint sealant.

Chinese people call car wax glaze film.

The main thing is to protect the original treated state of the paint surface.

Hope it helps.

I've been doing paint finishing for 11 years.

What the hell. What to sandpaper for? Wear the paint off? Isn't the first step of polishing waxing, do you think waxing is polishing? But this waxing and polishing is really an action.

1. First of all, it depends on the situation of the vehicle you need to polish.

2. If there is a paint problem that cannot be treated with simple polishing, you need to polish it with 2000 sandpaper.

3. Re-polishing.

The steps for grinding and polishing are as follows:

1. Clean the whole vehicle. Clean the whole vehicle with a paint cleaner with strong detergency, and when using the cleaning agent, you should avoid new scratches caused by particle dust in the grinding.

2. Water sandpaper grinding. For defects such as coarse grains, fine sandpaper marks, flow marks and other defects on the painted surface, wrap 600 water sandpaper in water in a small rubber liner before polishing, and gently polish it until it is smooth (note that it cannot be worn through the paint layer).

3. Coarse and fine grinding. Use a mechanical grinder (electric or pneumatic) plus coarse abrasive paste to coarsely grind the traces of water sandpaper; Then add abrasive paste to polish and polish fine grinding.

4. Polishing. A mechanical polishing machine is used to remove the spin marks left by the coarse abrasive paste with a mirror treatment agent to achieve the effect of mirror polishing of the paint film.

5. Hand glazing. After grinding and polishing, wipe off the grinding and polishing paste, immediately wipe all the polished parts with cotton yarn dipped in varnish wax, and then wipe off the excess varnish wax with dry cotton yarn to make the paint surface bright and dazzling.

In order to make up for these defects, grinding and polishing are usually carried out after spraying, so as to improve the mirror effect of the paint film and achieve the requirements of brightness, smoothness and showiness.

Extended information: Car polishing is the process of car beauty, in the process of waxing, glazing or coating, first polishing the car. Because the glaze coating must be polished first, and it is a finely polished car before it can be made into a mirror.

This is the operation that the glaze must go through. Without polishing, the paint is uneven, and the glaze retention time is very short, and it cannot have the effect of long-term adhesion at all, which is no different from waxing. Of course, according to the situation of the car paint, polishing does not have to be done in all three steps, and new cars often can be restored in one step.

However, the car that has done coarse wax must be polished with medium wax, and the car that has done medium wax must be reduced with fine wax.

At present, the market demand for automobile polishing is very large, but the first aspect is slightly insufficient, especially with core intellectual property rights, there are not many enterprises with excellent product quality, and the industry as a whole lacks brand effect. In the stage of strong demand, there is no doubt that the industry demand is huge and the development prospects are good.

However, how to maintain the health, stability and sustainable development of the industry requires the joint efforts of enterprises in the industry, especially the need to give full play to the fastidious research and development spirit, further improve the production process, reduce costs, truly solve the practical difficulties of customers, strictly control the quality, and provide the most reliable products.

If you can't throw it out, you have to spray paint and spray oil.

Summary. Hello dear, the information I found for you shows that: 1. Use 2000 fine skin sandpaper dipped in some laundry detergent water, and polish gently, be careful not to use too much force, so as not to wear through; 2. After polishing, use decontamination wax once, and finally wax again.

Precautions before painting: Steps for rough and polishing the surface after painting by yourself:

1. Use detergent to clean grease, oil, sweat, etc.;

2. It should be polished or polished before painting, the purpose is to deal with substances that are not easy to dissolve in water and cleaning agents; 3. Shake the bottle repeatedly before spraying paint in order to fully stir the acrylic inside;

4. If you are not satisfied after painting, you can spray paint again after grinding, and you can repeat it many times until the effect is satisfied; 5. Varnish or sand wax can be used as appropriate;

6. Use protective wax to avoid oxidation and tarnishing of the paint for a long time.

How to polish the rough surface after spraying it yourself.

Hello dear, the information I found for you shows that: 1. Use 2000 fine skin sandpaper dipped in some laundry detergent water, and polish gently, be careful not to use too much force, so as not to wear through; 2. After polishing, use decontamination wax once, and finally wax again. Precautions before painting:

The steps of rough surface polishing after self-painting: 1. Use detergent to clean grease, engine oil, sweat, etc.; 2. It should be polished or polished before painting, the purpose is to deal with substances that are not easy to dissolve in water and cleaning agents; 3. Shake the bottle repeatedly before spraying paint in order to fully stir the acrylic inside; 4. If you are not satisfied after painting, you can spray paint again after grinding, and you can repeat it many times until the effect is satisfied; 5. Varnish or sand wax can be used as appropriate; 6. Use protective wax to avoid oxidation and tarnishing of the paint for a long time.

ok thanks. You are welcome.

Answer: Regarding this problem, with the rapid development of life, cars have gradually entered people's lives, many car owners know that they need to polish after painting, so how long does it take to polish after spraying? What is the process of painting and polishing automobiles?

Car polishing is to polish the car once when waxing, glazing or coating. A car that has been finely polished can make a mirror, so how to polish the car after painting?

How to polish a car after painting – an introduction to polishing.

Car polishing is to polish the car once when the car is waxed, glazed or coated. After a finely polished car, a mirror can be made, and this is also the operation that must be done to seal the glaze. No polishing treatment, the paint is uneven, and the glaze retention time is very short.

According to the situation of the car paint, the new car can be restored in one step, the car that has done coarse wax should be polished with wax, and the car that has been done with wax should be reduced with fine wax.

How to polish a car after painting – the process.

Wash the whole vehicle to avoid new scratches caused by particle dust in the grinding. Sanded with water sandpaper. For defects such as coarse grains, fine sandpaper marks, and flow marks on the painted surface, gently polish them with a water-dipped bag of sandpaper before polishing until they are smooth.

Then use a grinder to add coarse abrasive paste to coarsely grind the traces of water sandpaper; Then add abrasive paste to polish and polish fine grinding. Then use a polishing machine and mirror treatment agent to throw away the spin left by the coarse abrasive paste to achieve the effect of mirror polishing of the paint film. Finally, after polishing, that is, after grinding and polishing, wipe off the polishing paste, wipe all the polished parts with cotton yarn dipped in varnish wax, and then wipe off the excess varnishing wax with dry cotton yarn to make the paint surface more bright and gorgeous.

How to polish a car after painting – how long.

As long as the lacquer is dry, it can be polished. If you bake it in a paint booth, it will dry in about 3 hours. If it is a rainy and wet day, it will dry naturally after spraying, and it will take half a day. If it's sunny weather. It was done in an afternoon.

In fact, waxing and sealing glaze can better protect the car paint, but it is best to polish a car no more than 5 times. Although polishing will make the paint thinner, it does not mean that the paint cannot be polished at all. In addition, the number of paint polishes on some Japanese models must not be controlled.

Hello Car paint polishing car polishing has a good protective effect on the paint surface of the car, and the car paint is brighter and more durable after car polishing. After the car is painted, as long as the paint is completely dry, it can be polished. If you want to polish yourself, use a soft cloth for cleaning the body, spray a small amount of water on the cloth first, then apply a small amount of polishing wax, and press and rub on the surface of the body with medium force.

When we can't see the flaws of the paint surface with the naked eye, and the paint surface appears shiny and smooth, we use polishing wax to polish the surface to keep the finish for a long time. When polishing with a polishing machine, a low-speed and slow-polishing method is generally used to polish to prevent high temperature and static electricity on the paint surface. Polishing is a very delicate work, to use both hands and eyes, often observe the paint surface, polishing machine should also keep moving at a constant speed.

In this way, it can be polished and polished to produce a car appearance comparable to that of a new car.

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.