Do you have to polish off the original paint? If the car is repainted, does the original paint need

Repainting will increase the thickness of the paint film, and the position of the paint will be higher than the original paint surface, so it is necessary to clean off the original paint and then spray new paint.

The painting order is as follows:

1. Deal with foreign objects on the car paint to prepare for future polishing.

2. Car wash 3. Check the paint of the whole car to confirm whether each part of the car paint has been painted, and if the paint has been repaired, special attention should be paid when polishing.

4. Use sandpaper to deal with heavier scratches.

5. Polishing, use polishing agent to polish the whole car for the first time.

6. Wash the car, because there will be a lot of residual wax on the car through the above steps.

7. Reduce, with reducing agent.

The whole car is polished again to improve the shine.

8. Final coating or glaze sealing.

The car is repainted, and the original paint needs to be removed. Spray paint needs to remove the original paint, because re-painting will increase the thickness of the paint film, and the position of the paint will be higher than the surface of the original paint, so it is necessary to clean the original paint and then spray new paint, otherwise, the paint surface is uneven, not to mention, there is a large piece of high.

If you scratch very lightly, don't use the paint, polish it with astigmatism wax between it, if you hurt the primer, you need to polish the original paint, and then re-spray it.

Precautions for painting the whole car:

The first is the paint mixing work, pay attention to the color difference. Pay attention to protective measures, and all parts that are not spray-painted must be pasted with newspapers or other isolation tools. When painting, you should also pay attention to the pressure of the gun and the working environment. Finally, it's time to paint.

The general painting procedure is to first make sheet metal (knock and level the metal body), smooth the original paint and the bottom layer of the paint part, so that it is two layers lower than the regular paint thickness, and then scrape putty (put the paste ash into the paint concave surface, scrape it flat to make it a primer), adjust the paint, spray paint, bake in the baking room, and then air dry for more than ten hours.

It is not necessary to polish it all, but it is necessary to pull the surface of the original paint and polish it until the surface is dull, and then the front sanding ash must be wiped clean before spraying, otherwise it is easy to blister in the later stage.

About the repair paint must destroy the original paint, 4S shop painting is to polish off the original car paint until the steel plate layer is exposed, and then spray three paint layers, namely the middle coating, color paint layer, varnish layer, and the original car paint The biggest difference is that there is no electrophoresis layer, the so-called electrophoresis layer is that the frame needs to be soaked in the paint pool, and then the pool is energized and electrolyzed, so that the paint is tightly attached to the steel frame of the body, which effectively plays a role in rust prevention.

No. Do not grind off the original paint by spraying the whole car paint, and pay attention to the color difference of the original paint part. Precautions for painting: Pay attention to color difference: Pay attention to color difference for paint mixing work. Baking time: The correct spray trajectory is perpendicular to the surface of the workpiece.

Whether to polish off the original paint depends on the process requirements. The process requirements are strict, and the original paint is generally sanded off. In this way, the overall tone, the overall flatness, smoothness, and adhesion are the best.

1 Preparation for painting Polishing the original car paint surface until the topcoat part is exposed, the finer the grinding, the better.

2. If it is not polished or not polished in place, the paint surface is prone to chemical reactions, commonly known as bite paint.

When the car is newly painted, the original paint should be worn off, because if the original paint is not disposed of, the new paint and the old paint will separate and fall off after fusion, which is equivalent to white paint. If the original paint is not treated, the effect is good even if the new paint has just been sprayed. When washing the car, the water gun is easy to peel off as soon as the new paint is washed.

In addition, repainting will increase the thickness of the paint film. If the original paint is not removed, the position of the painting will be higher than the original paint, and the surface will be unsightly. If the original paint is not treated, there will be color difference.

There are several layers of paint. The outermost layer is the varnish layer, then the top coat on the inside, the primer on the inside, and finally the electrophoretic coating.

Generally, the entire varnish layer is sanded off, then the top coat is sprayed, and then the varnish is sprayed. Electrophoretic coatings.

It is the main anti-corrosion coating for automobiles. If damaged, the steel plate will slowly corrode.

If the car is slightly scratched, there is no need for painting. Before using astigmatism.

Just polish the wax and polish it. If you hurt the primer, you need to sand the original paint and spray it again. If it hurts, let the master fix it for you.

You don't need to paint the whole car. If it is a small piece, it should cost about 200 yuan. If the body is not damaged, the paint is blackened.

Where the paint needs polish, sand it with 2000 water matte paper. It's okay if the range is a little bigger. Then rinse well and wipe dry.

Finally, the color is applied first, and then the varnish (bright oil) is applied. Spray the interface on the edges of the surrounding touch-ups.

Precautions for painting the whole car: first adjust the paint and pay attention to the color difference. Pay attention to protective measures. Any unpainted parts must be affixed with a newspaper or other isolation tool. Pay attention to the pressure of the gun and the working environment when painting. Finally, there is the baking time.

Why paint immediately after sanding is as follows:

In order to prolong the service life of these products, the adhesive properties of latex paint are used to strengthen the wall, and at the same time, the direct erosion of water vapor on the internal materials is reduced, so as to prolong the use time.

For some products that are already relatively strong, such as water-resistant putty, as well as the dry wall coating products operated by our store, the paint also has its unique and irreplaceable role - eliminating lead - color. Among all wall materials, latex paint is the most cost-effective wall coloring material, with rich colors and simple construction.

If there is a need for color, latex paint is definitely the first choice! In addition to the color, latex paint also has some unique characteristics, such as gloss, scrub resistance, etc.

Many people will also ask similar questions, that is, whether to paint Lu Bi paint, but they compare and compare, mainly around the cost and final effect. But I think there is nothing to compare with these two aspects, the cost must be less money without painting, and the effect must be more brilliant with paint, here I want to give you a new choice - take it - from the environmental protection to compare!

Indeed, there are many advantages of painting, but the disadvantages are also obvious, the first one, latex paint is used in modern chemical materials, environmental protection is somewhat risky, even if the pollution is less, then there is still there, do not use it!

The original paint should be worn off from the new paint of the car, because if the original paint is not treated quietly, the new paint and the old paint will be separated and fall off after fusion, which is equivalent to white spraying. If you don't treat the original paint, even if you have just sprayed the new paint, the effect is very good, and when you wash the car, the new paint will fall off very easily.

In addition, re-painting will increase the thickness of the paint film. If the original paint is not removed, the position of the spray paint will be higher than the surface of the original paint, which is not beautiful. Also, if the original paint is not treated, there will be color difference.

The paint is divided into several layers. The outermost layer is the varnish layer, then the topcoat, then the primer, and finally the Zhengling electrophoretic coating slag.

Therefore, the entire varnish layer is generally sanded off, and then the top coat is sprayed, and then the varnish is sprayed. The electrophoretic coating is the main anti-corrosion layer of automobiles, and if it is damaged, the steel plate will slowly corrode.

Only with a fierce polishing varnish layer spray paint.

There will be no impact.

Car Painting Steps:

1. First use clean water to clean the body.

2. After flattening the sandpaper with a skid, polish the edge of the scratch with water. Grind until the edges are smooth, and the paint transition to the base paint is smooth.

3. Pour the soil on the scraper, and use the scraper to evenly apply the soil to the scratched surface. After the soil is repaired, it should be slightly higher than the paint surface. After the patch, wait for the filler to dry completely.

4. After the soil is dried, use sandpaper, dip it in some water, and polish the soil. Polishing until the soil surface and the paint surface are parallel, and the hand touches the edgeless edge to take the reed corner, and smooth it. Once cleaned and dried, you can move on to the next step.

5. Before painting, cover the important parts around the scratches.

6. After the shielding is done, you can start painting. In the case of plastic parts, it is recommended to spray the primer first to increase the adhesion of the self-spraying paint on the plastic parts.

7. When spraying color paint, pay attention to the painting technique. Wait 3-5 minutes for each spray before spraying the next layer. Repeat the spray several times until the scratches and soil are completely covered and the surrounding paint color is no different.

8. Wait for 20 minutes, after the paint is dry, use scratch repair agent to polish the paint. Once the sanding is complete, prepare for the next step.

9. Spray 2-3 times of barge gold oil at the junction of the spray paint and the original car paint to make the transition between the new paint and the original car paint more natural.

10. Finally, spray varnish to make the paint surface look brighter. The varnish needs to be sprayed several more times, with each coat sprayed half a minute apart. After spraying, the entire painting process is completed.

It must be all sanded off and smoothed with fine sandpaper.

Repainting will increase the thickness of the paint film, and the position of the paint will be higher than the original paint surface, so it is necessary to clean off the original paint and then spray new paint.

The painting order is as follows:

1. Deal with foreign objects on the car paint to prepare for future polishing.

2. Hail liquid car washing.

3. Check the paint of the whole car to confirm whether each part of the car paint has been painted, and if the paint has been repaired, special attention should be paid when polishing.

4. Use sandpaper to deal with heavier scratches.

5. Polishing, use polishing agent to polish the whole car for the first time.

6. Wash the car, because there will be a lot of residual wax on the car dumplings through the above steps.

7. Reduce, polish the whole car again with a reducing agent to improve the gloss 8, and finally coat or seal the glaze.

Yes, the original paint surface needs to be sanded for repainting.

Re-painting will increase the thickness of the paint film, and the position of the paint will be higher than the original paint surface, so the mold will clean up the original paint and then spray new paint, but it should be noted that the lowest layer of the primer is the electrophoretic coating, which is the main anti-corrosion layer of the car. In addition, the touch-up paint will definitely have a color difference with the original paint, as long as the naked eye feels not so strong, it cannot be exactly the same.

As for a car, if you want to repaint, there is no need to remove the original paint. When the studio is re-painted, only the base needs you to match the color of the spray paint with the same vitality, then at this time the vitality is not and or it is necessary to clear, if you feel that the re-sprayed paint and the original primer color has a certain difference, then this time the origin. Be sure to clear it out, otherwise there will be inconsistencies.

Yes, because repainting will increase the thickness of the paint film, and the position of the paint will be higher than the original paint surface, so the original paint needs to be cleaned off and then sprayed with new paint.

It must be clear and clean, otherwise it is not instructed to Zheng Fa mold and spray paint, and it will be painted after spraying. Very ugly. Not only the original paint should be cleaned up, but also putty. Sanding flat in spray paint.

If the car is repainted, does the original paint need to be removed? The damaged places can be cleaned up, and the other places do not need to be cleaned up, and they can be re-sprayed.

If the car is repainted, then the long-term must be cleared, because this has to be polished, and then sprayed with new paint, so that it will be smooth. Re-celebrating the painting is a reputation or after grinding and polishing.

If you need to re-paint the car, you have to see what the color of the original paint is, if the color is darker, it is impossible for you to spray a light color, and the original paint will be removed.

When the car looks again, does the original paint need to be removed? I don't think the original paint needs to be clear if the car is repainted. You can directly attack the state and lie on the top of the car, and you can directly spray the paint and carry it. I can't see it.

The car is re-gased, and the gas needs to be removed, because if it is not clear, the other will not be mixed with the new paint gift.

A boy is excited to tell the landlord about his future and plans, indicating that he regards you as a confidant, trusts you, and explains his ambitions to you. Expect the support of your source year, hail let the eyes gradually slip orange.

You re-paint and that's sure to form a new layer.

If you don't get rid of it, there will be a big difference in the future.

Spraying is a coating method in which a spray gun or disc atomizer is dispersed into uniform and fine droplets with the help of pressure or centrifugal force, and lead spikes are applied to the surface of the coated object. It can be divided into air spraying, airless spraying, electrostatic spraying and various derivative methods of the above basic spraying forms, such as high-flow and low-pressure atomization spraying, thermal spraying, automatic spraying, multi-group spraying, etc.

A processing method in which paint is atomized with a spray gun and applied to the surface of an object. There are compressed air spray painting, high-pressure airless painting, and electrostatic painting. The painting operation uses flammable paints containing large amounts of solvents, and the solvent vapors that volatilize into the air under conditions that require rapid drying are required to form explosive mixtures.

Special electrostatic painting is carried out at a high voltage of more than 60 thousand volts, and the distance between the paint nozzle and the painted workpiece is within 250 mm, that is, it is easy to spark discharge, which will ignite flammable vapors.

At present, there are four main types: arc spraying, flame spraying, plasma spraying and ** spraying. Using spraying technology, coatings with physical and chemical properties of abrasion, corrosion resistance, thermal insulation, electrical conductivity, insulation, sealing, lubrication and other special machinery can be obtained on various substrates.

The range of applications is very wide, involving various sectors of the national economy and various fields, including cutting-edge technology.