What do you think about the people who wash the car suggest polishing their cars?

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.

The polishing shop suggests that the subject polish, from the point of view of the car wash, the polishing fee is at least a few hundred yuan, which can generate a certain amount of income, but for the subject it needs to be treated rationally, if the vehicle has not been polished for several years, it can be properly polished once to make the car paint bright, if it has been polished in a short time, then there is no need to throw it again. The scratches eliminated by polishing are actually made to disappear by throwing the paint around the scratches thinner, rather than by filling the gaps in the scratches, so we can conclude that polishing has a certain loss of car paint, if the number of times the same paint is polished to a certain amount, the paint on the surface will be thrown through, revealing the primer, and the paint will be redone at that time. ‍‍

The light is mainly aimed at the scratches of the vehicle that have not damaged the base paint, and the scratches can be shallower and less obvious or completely thrown away through polishing; The other is the oxidation of the surface of the car paint, for example, when the white paint is yellow or the color is dull, the car paint can be restored to new through polishing, and the old car can be renewed. From the polishing process, we can see that in addition to adding different thickness of polishing wax, there is no other substance related to the paint, and the polishing starts from the coarse wax and uses the mirror wax, that is to say, the polishing is actually a kind of polishing of the car paint, and the coarse wax is used by the polishing machine to grind off the paint on the surface, and then the fine wax is used to restore the mirror effect of the layer of paint that is grinded off.

In general, don't do it, the key is that the quality of polishing cannot be guaranteed, and it is likely to be a kind of damage to the car paint.

It is impossible to regenerate the car paint, and the already not thick car paint layer will become thinner and thinner after being polished once or twice, and the self-protection ability will become worse and worse, which will eventually lead to irreversible aging, so try not to do it or do less polishing. ‍‍

In fact, there is no need at all, if you want to wipe the dirt on the surface of the car yourself, the method is very simple, we first observe the stains on the surface, if it is spotted, you can spray the foam detergent, wait for a few seconds and then wipe it vigorously to remove, if it is a gelatinous stain, you can buy special asphalt, but also spray it on the surface of the stain, wait for a period of time after the wiping agent can be removed.

Polishing is not good for the car itself, after polishing the paint will become very thin and the primer will be easily exposed. Generally, it is recommended that you polish if the flower marks are very light, and if you don't polish, you have to repaint, spray paint is more expensive than polishing, so you have to choose this yourself.

There are scratches on the car, so many car friends will be sent directly to the 4S shop, people to polish, and then refurbish, after the renovation is indeed restored, it looks good, but this is completely unnecessary. ‍‍

Don't wax your new car casually. Because there is already a layer of protective wax on the paint layer of the new car itself, premature waxing will remove the original wax on the surface of the new car, resulting in unnecessary waste. ‍‍

In this case, it depends on whether you are willing or not, if you don't want him to force you, there is no way, after all, polishing you spend money, he dresses you up in the car, it is a matter of face, if you think he wants to make your money, you don't have to accept his advice.

Although car polishing can make your car shine immediately, car polishing often brings some damage to your car's paint, polishing is to grind off the scratched or faded surface layer of the car paint, revealing the bright car paint below. ‍‍

After a polishing, it is more necessary to maintain it thoughtfully and meticulously, to use car wax with better protective performance, and to clean and maintain the car in a timely manner. ‍‍

A kind of commercial promotion, which has a certain role and can be considered.

New cars do not need to be polished within a year.

In the open air, the new car will be waxed in about two months, and the new car will do a good job of waxing on a regular basis, so that the paint can be well protected, and the good condition of the car surface can be maintained for a long time.

These belong to car beauty, and the role of waxing is first of all waterproof, acid-proof rain, due to the protection of car wax, the amount of water droplets attached to the body will be reduced, the effect is very obvious, can reach 50% to 90%; The second is to prevent high temperature and ultraviolet rays, the weather is getting hotter and hotter, and it is easy for the car to be driven or stored outside all year round due to the aging and fading of the car paint due to light.

Polishing refers to the surface of the car after spraying, there may be coarse grains, sandpaper marks, flow marks, white, orange peel and other small defects on the surface of the paint film, in order to make up for these defects, usually after spraying the grinding car polishing treatment, in order to improve the mirror effect of the paint film, to achieve the requirements of bright, smooth and gorgeous.

Polishing refers to the use of mechanical, chemical or electrochemical action to reduce the surface roughness of the workpiece to obtain a bright and flat surface. It is the use of polishing tools and abrasive particles or other polishing media to modify the surface of the workpiece.

Polishing does not improve the dimensional accuracy or geometrical accuracy of the workpiece, but is intended to achieve a smooth surface or mirror gloss, and is sometimes used to eliminate gloss (matting). A polishing wheel is usually used as a polishing tool. The polishing wheel is generally made of multiple layers of canvas, felt or leather, clamped on both sides with metal round plates, and its rim is coated with a polishing agent made of a uniform mixture of micronized abrasives and greases.

When polishing, the polishing wheel that rotates at high speed (the circumferential speed is more than 20 meters and seconds) presses to the workpiece, so that the abrasive produces rolling and micro-cutting on the surface of the workpiece, so as to obtain a bright machined surface, and the surface roughness can generally reach microns; When a non-grease matting polish is used, glossy surfaces can be matted to improve appearance. When producing bearing steel balls in large quantities, the method of cylinder polishing is often used.

Listen to what the master with 20 years of experience in painting has to say!

If it is a new car to do polishing, it is definitely not good.

In fact, we divide paint repair into three processes, grinding, polishing and reduction.

Grinding and polishing, strong cutting ability, can be repaired for car paint.

Reduction can only act on the oxide layer, and cannot touch the car paint at all.

Therefore, for the decontamination and oxidation (decontamination) of the surface of the new car paint, the reduction process can be used. Only the oxide layer is removed, and the paint is not damaged.

If you don't need it, you can do it again at least a year later.

Everyone has a different opinion on the polishing of the whole car, some say it is good, some say it is bad. Generally, there are slight scratches on the car, that is, when the scratches only appear on the surface of the varnish, in order to remove the scratches and other varnish damage, we use the polishing method to polish the problematic paint surface. As soon as we hear this, we know that polishing is bad for car paint.

Although polishing can solve problems such as scratches and rough paint, the thickness of the varnish is always thinner.

When polishing with the correct technique, it is not quite correct to use the word "injury". In a nutshell, polishing is the operation of removing the irregularity of the painted surface, that is, in order to achieve a smoother surface and provide higher reflective readings to improve the reflectivity of the painted surface, it is necessary to remove a part of the painted surface. However, daily car washing and use of scratches that produce bright ridges usually only need to be removed by 1-2 m (the thickness of the paint in cars is usually 80-130 m nowadays) to achieve satisfactory results, and some deep scratches cannot be completely repaired to perfection or excessive loss of paint thickness, we can save the country by slight sanding and fading.

Polishing will remove the paint, but if your purpose is to make the paint surface more beautiful, then this part of the removed paint should not be considered as "damage", and the concept of "damage paint" should come from the combination of waves and currents used in many stores (high rotation polisher + large diameter wool tray). If the skin of an apple is broken, it will rot quickly. If you cut off the rotten part with a knife to reveal the part that is not broken, and then wrap it in a protective film, the rotten apple can be stored for a while.

Limited expressive skills. I don't know if the subject can understand what I mean.

If the whole vehicle is polished once, it will not cause great damage to the vehicle. If the whole vehicle is often polished, it is very harmful to the car paint. The vehicle's varnish layer is about 40 to 60 microns, and 5 microns of the varnish layer is worn off each time it is polished.

Vehicles can only be polished 8 to 12 times, so one less polish. The frequency of the owner's polishing should not be as frequent as possible, and it can be polished once a year, so that the paint surface can be renewed.

After the car is polished, the problems that affect the aesthetics of the car body, such as the oxide layer on the surface of the car paint, the scratches on the body body, and the reduction of the brightness of the paint surface due to oxidation. , so that the roughness of the surface of the wax can be reduced, and a bright and smooth surface can be obtained. When polished, the body will look good and shiny, just like the new car you just bought, all kinds of scratches on the body will disappear, as if there were never any scratches.

The damage to the car is very great, and the void is likely to damage the car paint, and it may also cause the Changhan vehicle to be unsightly, and it will also affect the resale of the car in the future, which will affect the value of the car and cause the car to not retain its value.

There may be slight scratches in Zipei, or the paint surface may be damaged, which will also affect the aesthetics of the car, and there may be a situation of throwing through, or the only trace is that the paint will become thinner and thinner.

The film on the surface of the car will become thinner and thinner, and the thickness of the varnish will become thinner, and the shed may be very unstrong in the event of a car accident, and the skin of the car will be higher and higher, and then it will be damaged.

If the whole car is polished, it will cause damage to the car paint, which will make the clear paint of the car thinner and thinner, affecting the beauty of the car.

It will damage the paint, will also affect the value retention rate of the car, and will also cause the appearance of the car to be not smooth at all. It can also affect the appearance and aesthetics of the car.

Local polishing and car washing can be done, the wax can be wiped off, and the whole car does not need to be washed, and the wax is not easy to deal with.

1. Polishing method: adjust the polishing machine to turn the speed, and the sponge wheel is fully moistened with water to get rid of the excess water. First, apply a small amount of C3 polish to the paint surface (each small piece is treated once, not a large area), and start polishing from the roof canopy.

The sponge wheel of the polisher is kept tangent to the paint surface, the strength is moderate, and the speed is kept constant. When polishing, polish in a certain order, and cannot be carried out arbitrarily. After using C3, switch to brightening agent and operate again according to the above steps.

2. When the paint surface of the whole vehicle is processed, the paint surface will be very smooth and bright, but sometimes there will be some extremely fine scratches and flower marks or halos, in order to keep the paint smooth and bright, it is necessary to apply mirror glaze. This kind of mirror glaze is made of polymers such as polymer glaze as the main raw material, without wax, frog and nitro synthetic ammonia, which can make an enamel mirror effect on the paint surface of any model, and form a smooth, bright and sealed enamel mirror protective film on the paint surface, so that the body is always as bright as a mirror, and at the same time has a number of significant functions such as acid rain, anti-oxidation, anti-ultraviolet rays, anti-fading, etc., and can also resist slight scratches of hard objects, not afraid of fire and oil, etc., and has more than one year of maintenance effect.

3. When using, use a clean soft cloth to remove the polishing residue, shake the mirror glaze, apply it to the paint surface with a soft cloth or sponge, stay for 60 seconds and polish it by hand or machine. The machine polishes at a speed of less than 1000 rpm and finally wipes off the residue with a clean soft cloth. When processed by hand, the straight line can be polished and polished.