The reasons for the appearance of shagReen when painting a car

Painting a car requires both technical proficiency and an attention to detail. Even the most skilled painters can occasionally have problems with the car’s surface, such as shagreen, or orange peel effect. At this point, the paint dries to a rough, textured finish that resembles orange skin. Knowing why this occurs is essential to getting the perfect, seamless appearance that all car owners want.

Shagreen is frequently caused by using the incorrect spray technique. Uneven paint application may occur if the paint gun is handled too closely or too slowly. This causes an overabundance of paint to accumulate in some places, giving the texture its characteristic bumps. The paint flow can also be disturbed by using the erroneous air pressure or nozzle size, which exacerbates the issue.

A big part is also played by environmental factors. The paint may dry too quickly and not level out properly due to high temperatures or low humidity. On the other hand, excessive humidity or coldness can cause a delay in the drying process and related problems. Painting in a controlled environment is essential to reducing these risks.

The surface preparation of the car prior to painting is another important consideration. An uneven finish may result from any debris, oil, or leftover paint residue interfering with the fresh paint’s adhesion. Shagreen is less likely when the car’s body is thoroughly cleaned and sanded to provide a smooth surface for the paint to stick to.

Finally, a significant difference can be made by the caliber of the paint and thinners used. Poor-quality goods frequently lack the leveling qualities of better-quality alternatives, giving them a rough texture. Following the manufacturer’s instructions and mixing the paint with the proper thinner will guarantee the best consistency for a flawless application.

Painters can avoid the shagreen effect and achieve a smooth, glossy finish that improves the appearance of their cars by being aware of these common causes. Regardless of your level of experience, paying close attention to these details can have a significant impact on the outcome.

How to recognize shagren

To deal with the effect of shakiness in painting and know when to erase it, one must understand what it is. The result is the existence of irregular formations in different sizes; tiny and larger roughnesses up to a few centimeters can be found. Usually on an automobile basis, the most obvious issue is on the metal.

Shagren resembles the orange peel in appearance, so you can use that to determine the defect. Shagrin that appears during painting is hard to get rid of; sometimes you have to remove the layer entirely and start over.


Shagren can be classified into different types based on the size principle. separated into big and small groups. While the latter can extend several centimeters, the former only reach a few millimeters. The best way to remove the shagrin from the varnish will depend on its type and technique. The process is simpler the smaller it is.

Shagreen, the occasionally seen rough, uneven texture after painting a car, is frequently the result of a combination of issues such as inadequate surface preparation, mishandled spray gun settings, and incorrect paint viscosity. This frequent problem can be avoided by making sure the paint is the proper thickness, the spray gun is calibrated properly, and the surface is clean and smooth before painting. Comprehending and tackling these components can result in an impeccable, expertly-crafted outcome.


It’s important to comprehend the causes of the shaking in order to avoid wasting time trying to remove it from a car. When painting an automobile, the following reasons for the flaw are identified:

  • Application of poor -quality products, varnishes, paints and primer solutions should be selected correctly;
  • The incorrect setting of the device that was stained with an example is the unbearable parameters for the supply of paint and air for its distribution on the spray gun;
  • Poor surface preparation for painting, small flaws remain;
  • Inappropriate conditions for materials and devices that are used in the process.

Poor quality paint can cause the layer to dry out too quickly after it leaves the spray gun, resulting in a distinct lump that will eventually rise to the surface and cover the multiple types of paint applied afterward. Оогда подобных сгустков в составе пвляется багрень на основании и слишком много.

This defect could also show up when applying multiple layers. Paint and varnish can be applied after a primer has been applied. This is frequently the result of material incompatibilities; different manufacturers may use components that are incompatible with one another. Such staining happens in any version when the paint particles are disconnected and the coating lacks the required homogeneous, smooth structure.

When inferior paint is used for painting, the layer may dry too quickly and leave behind a distinct lump when it comes out of the spray gun.

How to prevent shag

ShagReen may not always occur on the wall or the ceiling; in fact, designers may purposefully create this kind of coating. However, this effect is a drawback for the car coating and should be avoided.

By following the guidelines and learning how to paint without using shaky paint, you can paint a car yourself and avoid paying for professional assistance. Despite the fact that the carmaker can ensure a high-quality outcome.

Requirements in order to prevent surface roughness:

  • It will be optimal to conduct staining in special boxing, which supports the necessary conditions. Often in everyday life it is difficult to achieve, therefore, in this case, carutter is considered. The temperature regime should be within +18-24 degrees so that the condition of the paint is normal and the application is not difficult;
  • It is necessary to configure the spray gun so that during painting there is no empty air output, and the layer is applied evenly;
  • The required distance between the tool and the base is selected, otherwise the paint elements can dry even before it enters the surface;
  • The temperature indicators of the base should be identical to the temperature regime into the room. On an excessive cold surface, the evenness of the layer will be more difficult;
  • It is not allowed to accelerate the process of drying, it should be achieved in natural conditions, the effect of air on the painted layer will lead to shag.

A good spray gun should have nozzles that release paint uniformly within the confines of the metal surface.

The spray gun needs to be set up so that the layer is applied uniformly and there is no empty air output while painting.

How to remove shagrin

If the effect is already there, you will need to know how to make the varnish’s shagrin disappear as completely as possible after painting. If removing a significant flaw is not feasible, there are two options for polishing techniques or fresh repainting. Both solutions demand work. Depending on the circumstance, you must choose your own approach.


The building’s facade, which had previously appeared rough, will gradually lose its aesthetic appeal, but the automobile should be flawlessly smooth and all repairs should be done correctly the first time. The following steps are taken if polishing is decided upon as the defect’s correction:

  1. They start correcting after complete drying of the layer, usually 24 hours are required.
  2. A zone with a flaw is polished. The grinding is performed with sandpaper, while the grain should be minimal, the option with an indicator of 1500 is suitable.
  3. Instead of grinding, you can apply a freezing of the last layer.
  4. A paste for polishing is applied to the defective area.
  5. The surface is polished by the device with a nozzle with a circle of soft felt.
  6. The defect is processed several times.
  7. The surface is cleaned of the residues of the pasta.
  8. The result of the work is checked.


They only resort to painting over a flaw in a section of the metal or on the entire surface if polishing proves to be ineffective due to a large defect. The following stages are included in the technology of work:

  1. A zone with a defect from a painted layer, up to a primer layer, falls out, you can not leave the slightest trace of the paint.
  2. The quality of the primer layer is evaluated, if it is unsatisfactory, then this layer is washed off.
  3. The metal surface is processed so as not to encounter an orange crust again.
  4. Apply a primer solution with a roller or brush, clinging after to get a smooth base.
  5. Когда поверхность полностью просохнет окрасить зону новой краской высокого качества, подобранную под цвет авто.
  6. When the paint dries, the paintwork is polished.
  7. The result is checked.

As soon as possible, поверхность полностью просохнет окрасить зону новой краской высокого качества, подобранную под цвет авто.

When shagren is necessary

Shagren isn’t always a bad thing, though; in some cases, it can help to obstruct other flaws and enhance the beauty of the stain. For instance, you can achieve the appearance of skin coating by painting walls; this look has become more popular recently.

You can seal some of the base’s flaws with Shagren paint. Shag can be used to decorate the surface’s roughness, hollows, and residual seams from repairs. Without it, these imperfections will be obvious, and because of the staining, they acquire their original covering.

For this use, polymer-based powder paint is typically selected since it is an all-purpose tool that works with any kind of material.

Paints of the Shakhrin type have a high degree of metal adhesion. chosen to create a protective barrier out of doors, safes, and other objects. transforms surfaces’ decorative qualities and makes them palatable to the touch, all the while hiding any existing flaws. Produced in compliance with GOST, please request a quality certificate prior to purchase.

Types of coloring compositions

Paints with this effect can be separated based on their component parts. Although there are alternatives based on acrylic, the following varieties are more common:

  • Based on polyester, suitable for protecting objects operated on the street;
  • Based on epoxy, can withstand the effects of alkalis and acids;
  • On a mixed basis of polyester and epoxy for objects operated in a closed space.

One can choose from a variety of shading options, including white, vanilla, black, and other colors. Additionally, you can find the color transition effect, which yields the silver portions of the shag on a white background. or gold in the Glamur style.

The orange crust sizes in the compositions vary; the higher the fraction, the higher the product consumption.

Alternative ways of applying paint to the car body

Using powder paints and varnishes on metal would be the best way to avoid ShagReen’s appearance. The coating will be exquisite, and low consumption will allocate the funds while a shield against outside influences is formed. To stop the spread of layers, special extra components are added.

Paints shield metal surfaces from the formation of corrosion, which is crucial. Their application is growing more and more common.

Using powder paints and varnishes on metal would be the best way to avoid ShagReen’s appearance.

Shakhrin when staining can cause issues, or the opposite can occur when flaws are eliminated. However, if obtaining a rough surface was not desired, the aforementioned technology should be used during painting and under the appropriate circumstances. It will take a lot of work to solve the issue, so it is best to call in experts.

Reason Explanation
Incorrect Spray Gun Adjustment If the spray gun is not set up correctly, it can cause uneven paint application, leading to a textured surface.
Improper Thinning Using the wrong amount of thinner can make the paint too thick or too thin, causing a rough finish.
High Humidity Painting in high humidity can cause the paint to dry too slowly, resulting in a bumpy texture.
Low-Quality Paint Using cheap or low-quality paint can lead to poor application and a rough surface.
Dirty Surface If the car surface is not properly cleaned before painting, dust and dirt can create a textured finish.
Incorrect Drying Time Not allowing enough time for each coat to dry can cause the paint to layer unevenly, leading to a rough texture.

To paint a car in a smooth and polished manner, one must comprehend why shagreen, or an uneven textured finish, appears. This problem is caused by a number of things, such as inadequate surface preparation, inappropriate application methods, and ambient circumstances. You can drastically lower the chance of shagreen by taking care of these things.

Inadequate surface preparation is one of the main causes of shagreen. An uneven texture can result from contaminants such as grease, dirt, and other elements interfering with the paint’s adhesion on the car’s surface. A smooth finish depends on the surface being properly primed, sanded, and cleaned. The proper use of primers and letting them dry completely are also essential in preventing shagreen.

The method of application is another important consideration. An uneven paint application can be caused by using the incorrect spray gun settings, such as the wrong pressure or nozzle size. Paint is more evenly distributed when applied with smooth, overlapping strokes and at a constant distance from the surface. It’s also preferable to apply several thin coats of paint rather than one thick coat at a time, as this can result in sagging and uneven textures.

Temperature and humidity are two more environmental factors that can impact the paint’s finish. Paint may not dry evenly if it is painted in an overly hot or cold environment. Elevated relative humidity may cause moisture to seep into the paint, resulting in flaws. For best results, paint should be applied in a controlled environment with ideal humidity and temperature levels.

You can steer clear of the typical pitfalls that lead to shagreen by being mindful of surface preparation, application methods, and environmental factors. By following these guidelines, you can guarantee a smoother, more expert paint job that improves the car’s longevity and appearance. You can achieve a perfect finish by using the right techniques and paying close attention to detail.

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Alice Chernyshev

Artist with 15 years of experience, color solutions specialist in interior design. I am in love with the world of colors from childhood, I am happy to share my knowledge and experience.

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