Why does shagreen appear when painting a car and how to get rid of it

Repainting a car body is an expensive pleasure associated with financial and time costs. A thoughtful approach will help you avoid serious problems and disappointments. This work should only be trusted to professionals. Otherwise, it is unlikely that unwanted effects will be avoided. Even an experienced specialist can make mistakes; for novice craftsmen, the likelihood of defects is much higher.

One of the most common flaws when painting a body is the appearance of so-called shagreen.

How to remove shagreen

What to do if you still painted a car with ugly shagreen and it needs to be removed.
It all depends on how big the shagreen is. In many cases, it is easier to repaint a part rather than correct a defect. If the shagreen is small and you need to correct it quite a bit, Trizact 3000 from 3M will help here. Treat the surface using an eccentric machine while it is wet. It practically does not “cut” the material and is ideal for correcting small shagreen. Since Trizact is soft-based, it will not completely smooth out the shagreen, but will make it a little less noticeable. After this, the surface is very easily polished and there are no sanding marks left.

If you still mess up and the shagreen is very high and pronounced, then you can’t do without sanding. To do this, you will need abrasive paper P1500 P2000 or P2500 It all depends on how “sad everything” is for you. I recommend paper from 3M. For convenience, a sanding “squeegee” from Mirka is used. Sand the wet surface using even “back to front” movements; to control the surface being treated, wipe it dry. After sanding by hand, use Trizact 3000 to remove the directional mark and you can polish.

Sometimes it is necessary to completely remove shagreen. This surface is called “Bald”. Shagreen is completely removed by manual wet sanding. First, an abrasive with a grain of P1200 is taken, then P1500. Be careful, you can easily wipe down to primer, paint or even metal. Dry the surface to see the result of the work. Small glossy depressions will be unpolished shagreen. You can also use dry sanding using a sanding machine.

I hope the above will help you get rid of shagreen when painting. Happy work!

Process mechanization

A convenient device is a cutter for removing paint defects. The device is used for spot elimination of varnish unevenness and sagging. They can remove shagreen from varnish. This is a kind of cutter that removes everything unnecessary, including small varnish stains. The cutter has a correctly set, non-dull edge. It does not require sharpening, the tool is almost eternal. The ideal and smooth surface of the cutter produces a smooth surface of the varnish coating. The device is very convenient to use before polishing. This tiny device can fit in a child's palm.

Methods for removing shagreen

Shagreen plaster
Professional painters know very well from their own experience how to remove shagreen. There are two main ways to remove it:

polishing,
repainting.

The first method is more preferable, and if the situation with poor-quality paint application can still be corrected, then it is used. The second option is an extreme measure that the master has to take in case of complete failure.

Polishing

Minor irregularities on the surface of the car appear even if painted in conditions close to ideal. Simple roughness can be removed by cleaning using any abrasive materials. At the initial stage of polishing, sandpaper with a grain size from P1200 to P1500 is used: a small rubber or wooden block is wrapped in sandpaper and a smooth, uniform surface treatment with defects occurs. During the process, it is periodically necessary to wash off the resulting dust and microparticles of paint from the working surface. To do this, it is recommended to use clean distilled water, the excess of which is removed with a rubber sponge.

After rough processing, finishing matting is carried out with abrasive paper numbers P2000 or P2500. At the final stage, special pastes are applied to the body, after which the surface acquires gloss and shine.

Also, to remove shagreen, they produce special Trizact grinding discs for polishing machines. They have a soft backing onto which abrasive particles with a grit size of P2000 or P3000 are sprayed. Such devices greatly facilitate the work and do not leave behind deep scratches.

Repainting

If the paint applied to the surface unsuccessfully and the white shagreen remains even after mechanical treatment, you will have to start work from the very beginning. In this case, it will be necessary to completely remove the old coating so that its flaws do not appear in the future. In addition, the previous protective material may be incompatible with the new one. Therefore, repainting is a very labor-intensive operation.

How to grind?

For this you will need

1) sandpaper

2) special abrasive pastes (most often of three types, intended respectively for varnish, paint and primer)

3) clean, preferably distilled water

First of all, the surface is matted using sandpaper, the choice of which, like the choice of pastes, depends on the severity of the “automotive cellulite”. Matting can be done either manually or using special equipment.

abrasive pastes are used , and we must not forget to add warm water (as in the matting process).

The final stage of grinding is polishing , which removes the last traces of the defect and adds a final shine.

When sanding the coating, you must be patient and careful, maintaining uniform movements. If you are too energetic and assertive, you risk damaging the coating even more and then you will have to resort to more expensive and time-consuming painting.

Repainting the car

It is performed if the shagreen is too noticeable or the grinding results were unsuccessful. Before you begin repainting your car, you will need to completely remove the old coating, including the primer. Otherwise, the manifestations of “automotive cellulite” will affect the newly applied coating. In addition, the new paint may be incompatible with the previously applied coating or varnish. At the same time, when “stripping” the old coating, it is important not to rub the metal too hard and prevent it from overheating.

When performing secondary painting, you should pay attention to the lessons already learned and carefully observe the following precautions:

1) correct choice of solvent, as well as its dilution in accordance with the manufacturer’s instructions

2) maintaining the proper temperature in the paint booth (ideally it should be close to 20 C)

3) proper storage of primer, varnish and paint

4) correct selection and storage of equipment, preliminary check of the quality of the spray gun

5) if you are new to the art of car painting, pre-train your skills or turn to professionals.

Factory shagreen.

Unprofessionally made shagreen, which disfigures the appearance of the car, can also be discovered during the sale, especially if you are not buying a new car, but a used one. At the same time, shagreen made for resale may not be recognized at first glance. Its characteristic features are:

1) unevenness of the shagreen covering,

2) differences in paint color,

3) uneven thickness of the paint layer

4) presence of smudges

If your car was tinted during resale, this may be a sign of unpleasant surprises - scratches and other microdamages received during transportation or storage of the car. Repainting is also performed in order to hide traces of accidents from the buyer. In any case, such microdefects are a reason to demand a discount when selling a car.

Source

Spectacular roughness

Car lamp sockets: designation and types

Shagreen is not always an undesirable defect. It happens that this effect is created intentionally. Shagreen decor on the walls looks very beautiful, unusual and stylish; this trend is popular. Silk textured painting allows you to hide minor surface defects. A unique decor not only plays a practical function, but can also pass for an interesting design idea.

To create this effect, a special shagreen powder paint is used. It can be used to process almost any surface; it is a universal material, suitable for both plastered and primed walls, as well as metal pipes and communications. The paint has excellent adhesion and is used for decorating safe cabinets, equipment, and door panels.

The pleasant-looking texture attracts attention, looks aesthetically pleasing and stylish. The composition allows you to protect surfaces from the negative effects of environmental factors

Such properties are explained by the substances included in the coloring composition. Powder shagreen paint allows you to obtain a durable coating, the service life of which is calculated for years. A wide range of shades will satisfy any demanding buyer.

It is worth noting that shagreen paint is resistant to many chemicals and solvents. Therefore, when choosing this material, you need to be prepared that removing it from the surface will be problematic. You should buy paint only from trusted, well-known manufacturers in order to get high-quality and long-term results.

With all efforts to prevent the appearance of unevenness and roughness when painting, the shagreen effect is obtained in most cases of surface painting. The only question is how noticeable this orange peel is, and whether it makes sense to get rid of it, or you can leave everything as it is. Careful surface preparation and the right technology can only minimize this defect, making it as invisible as possible.

Tips to prevent the effect from occurring

We can say that the effect of shagreen, or “orange peel”, is inherent in absolutely all painted surfaces. The only question is how noticeable this roughness is, and whether it is appropriate in a particular case. Most often it happens that they try to prevent or remove shagreen from the object being painted.

To do this, you need to pay special attention to the quality of the applied material and the manufacturer. Each layer, be it priming, varnishing or direct painting, must be done extremely carefully and accurately. Before use, you need to check and adjust all the tools used in the work.

What we managed to find out

Technical characteristics and types of car tires

So, we have determined that drips - drop-shaped formations on the paint layer of the body - are not only unsightly, but also very dangerous. The paint in defective areas sooner or later begins to crack, and rust forms in place of the cracks.

All the reasons for the appearance of such defects can be divided into three groups: 1. Defects, the formation of which is caused by a violation of the optimal operating conditions of the paint booth, where it is necessary to constantly maintain the required temperature regime. 2. Insufficient quality of materials used in the work, non-compliance with the proportions for preparing the solution, and the use of incompatible substances. 3. Incorrect adjustment of the compressor, poor setting of the spray gun. Note that the cause of smudges can also be poor degreasing of the body surface intended for painting. We hope you received a detailed answer to the question of how to remove paint stains on a car. The last piece of advice is to remember that in this matter it is much easier to avoid the appearance of shortcomings than to eliminate them later.

Shagreen surface effect

The “shagreen” texture is a modern trend in the design of apartments and houses, loved by designers. A very convenient type of painting that hides minor surface defects well and does not require preliminary puttying or plastering - unless, of course, there are potholes and cracks deeper than 2 mm on the walls.

A large selection of colors and shades makes this textured paint very popular. In addition, it is applied to the surface only once, which greatly facilitates and simplifies painting work.

Textured compositions are produced based on water-based paints. They are prepared in a special paddle mixer, loading it with synthetic-based water-based paint and fillers - potassium glass and marshallite. The prepared composition is kept for about half an hour, after which it becomes completely homogeneous.

The surface is first thoroughly cleaned and primed with a synthetic paint composition. After the primer has dried, paint is applied in one or two layers 1-2 mm thick. You can use a spray gun or, for small areas, a paint roller.

There is no need to try to cover large surface imperfections with just textured paint. If there are large depressions and irregularities on the base, they will still have to be repaired first. Now they produce textured plasters that can be used for this purpose. After drying, the plaster is coated with acrylic paint, and the shagreen effect is preserved.

Powder formulations

Powder compositions are used to paint metal surfaces. They also give a good shagreen effect, masking scratches and unevenness. Here you need to focus on the object that needs to be decorated.

Polyester paint shagreen is more suitable for products intended for outdoor use. Such compositions withstand the vagaries of the weather well and protect the object from the negative effects of atmospheric phenomena.

If the product or structure is exposed to chemicals, then it is better to use epoxy-based paint. Mixed epoxy-polyester paints are used for indoor structures.

Based on textured compositions, you can achieve a very interesting “Antique” effect. The fact is that the protrusions on the painted surface are slightly different from the color of the base. The result is original shades, given the variety of colors of powder paints.

Paints with a shagreen effect are wear-resistant, abrasion-resistant, do not fade, significantly save money on repairs and have a unique, original appearance. The use of such compositions in the design of premises, metal products and structures gives them strength, resistance to the external environment and a special charm.

>shagreen

Painting technology without shagreen

The paint drying mechanism is based on the evaporation of the solvent. The solvent dries, the enamel remains. The main difference between solvents is the drying speed, but the evaporation rate is also affected by temperature, humidity and air saturation with solvent vapor. All of these are interconnected parameters; the process can be adjusted by changing the temperature, paint application technology, or diluting the enamel to the desired degree. It seems that it is easier to change the viscosity of the substance, but too liquid paint will lead to smudges on the surface of the car, dry paint can worsen the shagreen. Thus, a defect may appear for the following reasons:

The paint is prepared (diluted) incorrectly - it is recommended to use the manufacturer’s data, and to increase accuracy, use measuring vessels.
The required proportions are used, but the solvent is not native (too fast, too slow) - when choosing a solvent, you need to take into account the paint manufacturer’s data, the volume of the room and the quality of ventilation (the data on the solvent packaging is only correct if there is good ventilation).
High temperature - the temperature in the room reserved for painting the car should not differ much from room temperature (20-23˚C), otherwise you will have to make allowances for this: dilute the paint more, change the way you work with the spray gun (movements, distance to the surface) .
Uneven compressor operation and air spitting lead to uneven distribution of enamel and the formation of shagreen.
Wide hole in the spray gun nozzle.
A large distance to the surface - a certain percentage of the paint may begin to dry in the air if the distance is large; the effect is especially pronounced at high temperatures.

As mentioned above, temperature, ventilation, percentage of solvent and its quality characteristics are interdependent parameters. When faced with this problem for the first time, it is quite difficult to determine the cause, due to the fact that not one parameter changes at once, but several. If an attempt is made to change the viscosity of the paint to eliminate shagreen, then the temperature cannot be adjusted under any circumstances, otherwise the reason will remain unclear if the result is unsuccessful. Painting parameters need to be changed gradually, step by step.

Experienced craftsmen determine the viscosity of enamel by eye. If the temperature is high, then the paint on the car should be thinner. In difficult conditions, the spreadability of the substance is assessed on a test sample: a piece of paper is glued to the wall, and several layers of paint are applied on top. Layers are applied until leakage begins.

How to remove shagreen after painting a car? Several methods to choose from

People often wonder how to remove shagreen after painting a car. This problem is quite common. Even with full compliance with all requirements, this defect may appear. Fine shagreen can even be found on new cars coming out of the factory. This is not considered a disadvantage. But there it is quite smooth, which is almost impossible to achieve in garage painting conditions. It is best to avoid such a problem, but there are ways to eliminate such a jamb in the exterior finish. You just have to tinker with this moment.

How to remove shagreen after painting a car?

Before answering this question, let's figure out what it is. In common parlance, this feature of the body is called orange peel or auto cellulite. This defect appears when drops of paint do not completely merge after they hit the surface. It looks like a surface that is not completely smooth; it often turns out speckled. When you run your hand over it, you can feel the unevenness of the coating. As already mentioned, there is nothing particularly terrible about this, but the unevenness of the shagreen grain seriously spoils the appearance of the body.

Shagreen can occur due to several factors, as well as their combination. Most often, the reasons for its appearance are as follows:

Using the wrong solvent. Each paint has its own characteristics. The manufacturer indicates the required solvent, as well as how to use it. Neglecting this leads to the appearance of this defect; Low dye viscosity. Often occurs for the reason described in the previous paragraph. But, sometimes it can also arise due to an initially incorrect recipe; Errors when adjusting the gun or spray gun. Usually, this is caused by too little or, on the contrary, too much pressure; The spray gun nozzle is too large. In this case, the paint does not apply as expected, but simply scatters to the sides; Using substandard paint

Please note that the coloring composition does not tolerate freezing. After (even short-term) freezing, the quality of the paint will decrease significantly; it will no longer spread over the surface, but will simply stick to it in lumps; When carrying out painting work, it is necessary to strictly monitor the microclimate in the box

Shagreen can appear at low or too high temperatures; The technology is broken. The paint is applied in several layers. If you do not wait until the previous layer has completely dried, you can get a surface with “auto cellulite.”

Such a large number of factors can cause shagreen on a car. Even experienced professionals working in large services are not immune to such problems.

No matter how carefully you do your work, there is still a chance of getting such a defect.

Therefore, it is important to know how to remove shagreen after painting.

The easiest way is to polish a section of the body. To do this, first the surface is treated with medium-grain sandpaper. After that, they pass over the defective area with fine sandpaper. Finally rubbed with polishing paste. The work is quite labor-intensive, but the result will please you;
Sometimes, drivers use repainting of one part or the entire body. There are only 2 disadvantages to this method of dealing with shagreen: High cost. Essentially, you will need to repaint the car, with all the associated costs;
There is a risk that the defect will not be eliminated.

Therefore, repainting is practically not used when combating shagreen. At most, minor flaws in one or more parts are corrected.

Conclusion

. Every car enthusiast has faced the need to paint a car at least once in their life. The work is difficult, and even after full compliance with the requirements, the question may arise of how to remove shagreen after painting a car. There are several options to solve the problem. But, it should be remembered that they are all quite labor-intensive. Therefore, it is better to strive to do the coloring correctly the first time.

Paint selection

The most important factor in obtaining a good result is purchasing quality paint. I am convinced that the higher the degree of matte, the better. It would be more accurate to say the opposite - the lower the degree of gloss. It is indicated in special units and for the best samples it is 2-3. 7 is already a noticeable shine, higher is already complete tin. Look at the “two”:

And here is the “seven”:

The difference is obvious. So, the main problem when painting, as you understand, are matte/glossy spots that appear from different textures on different parts of the surface. And the lower the gloss level, the less noticeable these transitions will be.

The next important characteristic is drying time. The larger it is, the better. Why - I think it should be clear. To have time to cover each area before the previous one dries out. In addition, according to my observations, the greater the amount of “dry residue” in the paint, the better it is (look for this characteristic on the manufacturers’ websites). By far the best paints for me are Paritet Facade and Dulux Office Room. Both are super matte, both are very durable and opaque. But Paritet has a higher degree of whiteness. Dulux is slightly yellow and costs more.

In general, here is an article that explains the difference between expensive and cheap paints.

How to prevent them from appearing

To prevent the formation of smudges on the surface of a car when painting, it is advisable to adhere to the following rules:

Thoroughly degrease the body before applying the coating;
choose the optimal thinner based on temperature conditions and repair area;
maintain exact proportions when using solvent;
adhere to the correct coating application technology, avoid local accumulations of the product and uneven application;
do not make a large number of layers or their excessive thickness;
follow the instructions for operating and setting up the spray gun;
apply materials at the optimal temperature - it is about 20 degrees.

You can avoid the formation of defects by first carrying out a test staining on another surface. This will allow you to optimally configure the tool, acquire and hone operating skills

It is important to pay attention to cleanliness, proper surface preparation and temperature conditions in the room

How to remove shagreen after painting a car

Often car owners carry out the procedure of painting the car on their own, without following the instructions and recommendations. After incorrect painting, as a rule, defects appear, namely shagreen. Often, shagreen is considered to be a poor fusion of small drops of paint and varnish material and the surface itself. Once shagreen appears, it will need to be removed.

Reasons for appearance

Shagreen on a car can result from improper painting. And it arises for the following reasons:

The paint and varnish product was prepared according to the wrong recipe. As a result, the consistency turned out to be of low viscosity, which was not enough for uniform application on the surface of the car.
The paint manufacturer's instructions were not followed correctly. The wrong solvent may have been used.
The spray gun has not been adjusted correctly, so the air pressure does not meet the required parameters.
The spray gun used a very large nozzle.
The conditions in the box where the car was painted were unfavorable. The air temperature is either higher or lower than normal, which is why shagreen appears when painting and other defects.
The car paint product was stored incorrectly (at low temperatures). When using such paint, it lies unevenly on the surface of the car.
The painted parts were not dried correctly and the drying times of the layers were not maintained.

Shagreen on a car can appear even if the car is painted in specialized services. In order to avoid its occurrence, it is necessary to take measures that prevent such a defect.

It is possible to paint a car without the appearance of defects, but to do this you will need to follow some rules and adhere to painting technologies.

It is also recommended to use only high-quality tools in your work, as well as use good paint and solvents.

Many masters highlight the basic requirements that help prevent the appearance of shagreen:

At the moment when the paint and varnish composition is mixed, the proportions should be strictly adhered to. In order for the proportion to be maintained with greater accuracy, it is necessary to use measuring containers for work.
A solvent should be used to paint the car and mix the paint. It must match the paint; as a rule, the manufacturer writes on the can which solvent should be used. You also need to know that the solvent is used not only according to the manufacturer’s recommendation, but also depending on the climate, room ventilation and volume of work.
Also, before painting, you should properly set up the spray gun. It should have a passport with data on pressure and other characteristics. Tool adjustments must be made after any use.
The temperature for painting a car indoors must meet certain indicators, namely about 20 degrees. A temperature discrepancy of 1 degree is allowed, both up and down.
Storage of paint and varnish compositions should not be in a humid place, and the temperature should correspond to the data in the paragraph above

It should be noted that shagreen is not so easy to remove from a car. In this regard, you need to be well prepared, since you will need to spend a little money and time.

Elimination of defects

As practice shows, shagreen is often obtained after painting a car. This is due to the fact that it is not possible to follow all the rules when performing the operation. To correct the situation, you have to resort to some methods:

In cases where the shagreen is small and insignificant, it is recommended to use the polishing method. Polishing should be carried out after the paint on the car has completely dried.

Then the shagreen will need to be removed using sandpaper. To work, you need water and the abrasive itself with a grit size of P1200 and P1500. When the main defect has been removed, you need to finish the polishing stage with P2000 and P2500 paper. After cleaning, you need to go over the parts with polishing paste to smooth the surface and give it shine.

If polish cannot remove defects from car parts, you should completely repaint them.

It is worth noting that when repainting, you need to remove all fresh paint and use sandpaper to smooth out and remove defects. After this, you can begin repainting.

The appearance of shagreen after painting a car does not affect the body in any way, but only gives it an aesthetically unattractive appearance. So the owner himself decides whether to remove it or leave it as it is. It is quite possible to paint a car without such defects

It is important to follow all recommendations and instructions, and then the car body will be shiny and perfectly smooth.

How to eliminate this defect from a car

It is not easy to eliminate shagreen that appears when painting a car, so it is worth preparing everything for polishing the car in advance. In general, the technology is reminiscent of eliminating chips and other defects on a car. However, each individual case requires its own approach.

In practice, the following methods are usually used:

Removing imperfections by polishing:

wait until the paint layer hardens properly (about a day after painting);
matte the problem area of the body using sandpaper (sandpaper) with a fine fraction for fine grinding of metal (grit value about 1500);
matting technology using abrasive paper can be replaced by washing the top layer;
apply polishing paste to the damaged area;
polish the surface with a machine using a soft felt wheel;
repeat the treatment of the area several times;
remove traces of paste;
evaluate the result.

It’s not easy to eliminate shagreen on a car

Removing “orange peel” by local or partial repainting (used in cases of very low quality painting, when polishing work is ineffective):

wash the enamel layer down to the primer in the damaged area, avoiding any remaining paint;
determine the quality of the soil, if necessary, washing it down to the metal itself;
carry out metal processing to prevent the occurrence of defects;
cover the area with a layer of soil, wash its surface, achieving maximum smoothness;
after waiting for the soil to completely harden, re-paint the surface to be treated with high-quality paint of the desired color;
after the enamel has dried, thoroughly polish the paintwork;
evaluate the result.

In both cases, with an unprofessional approach, there is a possibility of getting noticeable stains on the local painting site against the background of the old coating. You should also be more responsible when choosing a professional to paint your car.

Almost identical depressions distributed almost periodically over the surface

This defect is a visible manifestation of convective flow cells in the varnish layer, caused by the evaporation of fast solvent fractions from the top of the layer.

If, after the end of evaporation of the fast fractions, the layer loses its fluidity, then the cellular structure is fixed, but if the material contains a sufficient amount of slow fractions of the diluent, then the cells are smoothed out before drying.

fast thinner for a given temperature
insufficient amount of diluent

Thinners and Solvents

Thinners are liquids for diluting paint or varnish to the desired viscosity, and solvents are added by the manufacturer of paints and varnishes; they ensure the dissolution of resins and other components of the material.

Micron-deep orange peel is visible on the surface of glossy enamel varnishes, so they should be applied with sufficient dilution with slow solvents, and the temperature in the drying chamber should not be increased during the first hours after application.

Required roughness

But there are situations when it is desirable or even necessary to achieve a shagreen effect on the surface to be painted. Walls decorated with shagreen leather look very aesthetically pleasing and attractive. This trend has become quite fashionable recently.

Shagreen effect created intentionally

In addition, using shagreen dyes you can hide some defects in walls and other surfaces. For example, welding seams, kinks, small depressions or local roughness can be easily decorated using shagreen paint. In this case, all defects become less noticeable and seem like an interesting design move. While when painting without shagreen, the irregularities will remain visible and will spoil the overall picture of the interior.

Shagreen has good adhesion to metal surfaces. Therefore, the paint can be used to decorate doors, safes, as well as metal objects and equipment. In addition to its texture that is pleasing to the eye, shagreen paint has protective properties and is designed to protect surfaces from adverse environmental conditions.

Surfaces or objects painted with shagreen have a very aesthetic appearance. In addition, they are extremely pleasant to the touch. And as mentioned above, paint of this type helps to hide many defects and irregularities, turning them into a planned design move.

Types of powder dyes

The composition of shagreen paint may vary depending on the direction of application. First of all, shagreen is distinguished by the type of main component. Paint can be:

polyester;
epoxy;
polyester-epoxy.

Polyester shagreen paint is intended for coating objects and surfaces that are directly exposed to natural factors: rain, snow, wind, frost and direct sunlight. If the object being painted is threatened by acids or alkalis, then it is better to choose epoxy paint. For surfaces that are constantly indoors, polyester-epoxy shagreen paint is suitable.

On the market of paints and varnishes, polyester-epoxy shagreen paint with a color gradation effect is often found. This means that the upper part of the resulting “grains” - roughness - will differ in color from the main shade. So, for example, you can get silver tops on a white background, or golden ones on a black background. The name of the paint in this case speaks for itself. Antique shagreen, illustrating the examples above:

"silver on white";
"copper on black"

Shagreen is also distinguished by the size of the resulting roughness. Depending on this, the paint can be coarse or fine-grained. In this case, the choice of shagreen is determined only by the quality and type of the desired coating. However, it is worth remembering that to obtain a coarse-grained pattern, the consumption of powder paint will be much greater than for a fine-grained pattern.

What is shagreen?

Often car owners, when painting a car or part of its body with their own hands, violate the technology and, as a result, have a pronounced cosmetic defect in the form of shagreen. Possible causes of the defect and factors that contribute to it:

The paint was not sticky enough to complete the job. This means that when mixing the coloring composition, the technology for its preparation was violated. It was necessary to use only special containers for measuring the dose of components and avoid adding them “by eye”. You also need to strictly follow the proportions indicated on the paint container.
The paint was stored in a cool place. The optimal storage conditions for the paint composition are 15-20C, in this case the paint will spread perfectly over the surface.
The paintwork was applied too thinly. Shagreen after painting can be removed by additional polishing and re-painting.
Insufficiently dried paint. Shagreen may appear if each layer is not given time to dry completely.
The room was too cold or hot. How to paint without shagreen? It is imperative to adhere to the temperature regime, in this case the paint will dry evenly. Also, at high temperatures, the solvent evaporates too quickly, which is very undesirable when painting.
The spray gun was not adjusted correctly, causing the defect to appear. The nozzle of the device must be of the optimal size, it must be at the recommended distance so that the paint does not splash. The air stream also needs to be adjusted during the application of the coloring composition.

How to paint without shagreen?

Such a defect can appear at any stage of applying the paint and varnish coating and even during varnishing. Also, various mistakes that were made during the work process can affect the final result.

shagreen is visible in good lighting

Why does shagreen appear when painting? This is a question that car owners ask when they encounter such a problem for the first time. It is necessary to select the right materials for the job and ensure that they are compatible with each other.

It is imperative to follow the paint application technology and accurately adjust the spray gun before starting work. If the surface of the car body is damaged by shagreen, you need to know how to get rid of this defect.

How to remove shagreen after painting?

Small defects can be removed from the surface of the body using regular polishing. For work you need to use sandpaper of different abrasives and carry out the final work very carefully, using a special polishing paste.

To get a perfectly smooth surface, you can use two or three abrasive pastes; before using them, you must mat the surface. To save time and effort, you can use a special polishing machine in which you can independently regulate the speed.

All movements must be uniform, this way you can avoid defects in the form of stripes. In exactly the same way, you can get rid of this type of defect after the varnish has dried, if the car owner has a question about how to remove shagreen on the varnish.

In some cases, the defect may be deep and cannot be eliminated by polishing. How to remove shagreen? It will be necessary to repaint the surface after first removing the old paintwork from it.

The surface of the body is sanded again using sandpaper, degreased, and only then can a new coat of paint be applied.

Whether to get rid of shagreen or not is decided by the car owner himself, depending on how large the area and depth of the flaw is. You need to understand that this is a very labor-intensive process, and it is more expensive than following the technology when applying paintwork to the body.

Aesthetics and protection

But regardless of the purpose and appearance of the coating, shagreen powder paint will provide excellent protection for the surface being painted. The quality of the protective and decorative layer is determined by the properties of the constituent substances. Therefore, it is better to choose paint manufactured by well-known companies on the market.

The use of powder paint, in particular shagreen, allows you to obtain a durable, reliable and durable coating. In addition, the range of paint shades presented in stores can satisfy any, even the most demanding, taste. The protective properties of the paint are such that it can withstand fairly high temperatures, and is also able to resist the effects of certain types of solvents.

In this regard, shagreen can be difficult to remove from the surface if the result does not meet the stated requirements.