The process of applying polymer paint. Click on photo to enlarge.
Polymer painting is a modern technology for creating a protective and decorative coating on a car body. Painting a car body with polymer is a guarantee that the coating will operate for a long time without deformation, peeling or other damage as a result of mechanical stress and the influence of aggressive environmental factors.
As a rule, the polymer layer is only 0.3 mm thick, but this is quite enough to replace several layers of liquid paints and varnishes.
Powder paint is a free-flowing substance obtained by mixing and melting resins, fillers, hardeners, pigments and other additives, followed by grinding the solidified melt into the smallest polymer granules.
Polymer painting involves applying polyester multicomponent powder to the car body using electrolysis and further “baking” the coating in drying ovens at a temperature of 200°C. We can say that the paint is “fused” into the metal, so the protective properties of the powder coating are an order of magnitude higher than when painting a car with conventional paintwork materials.
Another attractive feature of polymer- powder painting– no need to use caustic and toxic solvents. Besides, this technology allows you to save material, since the powder is applied in a thin layer, which, however, in no way affects the quality of the coating: it is completely impermeable to moisture, salts and acids, protects the body metal from the negative effects of corrosion and retains its attractive appearance. appearance throughout the entire service life.
How is a car painted with polymer powder?
Scheme for coating parts with powder paint. Click on photo to enlarge.
First, powder paint is sprayed onto the prepared surface, which is supplied from a gun in the form of a mixture with air. Polymer painting occurs with the obligatory presence electric field, that is, voltage is applied to the gun and the part so that their charge is opposite. Almost all installations work with recovery systems that allow polymer particles that have not settled on the part to be captured from the air and collected in a receiving hopper. Recycling paint is another compelling argument in favor of the cost-effectiveness of this technology.
Polymer paint forms a monolithic coating only under the influence of high temperatures, therefore, powder painting necessarily includes a stage such as “baking” the paint in special polymerization chambers. This process takes place in three stages:
- powder granules turn into a viscous-fluid mixture;
- the melted mixture forms a homogeneous layer on the surface;
- the layer polymerizes and forms a thin but highly durable film.
Properties of powder-polymer coating
Samples polymer coating. Click on photo to enlarge.
As a result of polymer powder painting, a monolithic coating with a thickness of 60 to 80 microns is formed. It is characterized high degree resistance to ultraviolet radiation, moisture, abrasion. It is almost impossible to damage it by impacts, bending of the part and other mechanical influences. The polymer layer does not react with caustic chemicals, which means it reliably protects the metal of the body from destruction.
Powder paint polymerization technology ensures maximum adhesion of the material to the surface of the part.
Polymer painting forms a coating that maintains its integrity and does not become brittle at both very low (up to minus 60°C) and high (up to 150°C) temperatures.
Powder paint allows you to create unusual effects on the car body and hide minor defects even without first straightening the surface.
The service life of the polymer coating under moderately aggressive industrial conditions is up to 30 years, and in a slightly aggressive industrial environment up to 45 years. At constant negative impact In humid and saline coastal atmosphere, the coating retains all its performance properties for 15 years.
Powder-polymer paint successfully passes tests in a variety of extreme conditions: the painting withstands without deformation or destruction tests in a humidity chamber (98% humidity at a temperature of 40°C), simulating moderately aggressive exposure to an industrial environment (98% humidity at a temperature of 40°C and concentration sulfur dioxide 0.75 g/cub.m), as well as the coastal atmosphere with high content salts in humid air.
No signs of destruction found internal structure polymer and peeling and if the coating is damaged by lattice cuts during testing in accordance with the requirements of GOST 15140.
Where is polymer paint applied to parts?
Metal disc painted with polymer. Click on photo to enlarge
Interior finishing of drilling rig pipes.
Formation of a protective and decorative coating on metal products that can be heated up to 200°C.
Decorative finishing of ceramics and stone.
Painting MDF boards, elements garden furniture, fencing and other products.
Advantages of coating obtained by spraying polymer paint
Saving consumables, due, firstly, to the absence of the need for painting in several layers and preliminary priming, and secondly, to the possibility of recycling polymer particles sprayed in the air.
High level of adhesion to the surface.
Spraying without smudges or sagging, even if you have no experience in handling powder paint.
Resistance to corrosion, abrasion, temperature changes, chemicals and mechanical stress (shocks, bends, etc.).
High decorative properties of the coating.
Environmentally friendly painting process.
Main components of the powder coating line
What equipment does this technology use?
Polymer painting lines are equipped with:
Polymer painting system. Click on photo to enlarge.
- installations for applying powder to parts;
- painting booths;
- drying ovens in which polymerization of the powder occurs;
- transport systems.
As auxiliary tools, installations are used for cleaning and drying air, as well as for supplying compressed air for blowing recovery filters.
Installations for applying powder to parts
This equipment is designed to give the powder the necessary charge and spray the material onto the surface to be painted. Spray installations are divided into:
- tribostatic, in which the powder is charged “from the inside,” that is, due to friction;
- electrostatic, in which the powder is charged “from the outside,” that is, by applying voltage.
The second type of equipment is characterized by higher productivity.
Quite a lot of people are currently faced with the problem of painting their car. And, of course, no one can afford to paint their car themselves. And therefore, many people use the services of a special company to carry out this activity. This type services are in particular demand, because a painted car is a guarantee of confidence for its owner. Many people need to know what is a profitable, but also affordable service, with which you can short terms make your vehicle updated.
High-quality and affordable car painting with polymer composite
Many people don't know this reliable way improve your car. This service is a unique opportunity to improve the appearance of your car in the shortest possible time and make it more comfortable and enjoyable to use.
How exactly the process of painting a car is carried out.
- To begin with, of course, all the rust that is on the car is cleaned.
- The second step is to wash and clean the exterior of the entire vehicle.
- All necessary parts of the vehicle surface are also puttied.
- The next step is to sand the putty so that it becomes smooth.
- Afterwards the surface is washed and thoroughly dried.
- The process of painting the vehicle is also carried out.
High-quality and reliable car painting with a polymer composite price in Moscow
There are many advantages of this work, for example, such as the availability of special equipment, tools and knowledge that will make such work more efficient and productive. Therefore, it is quite difficult to do high-quality painting yourself. The quality is quite acceptable, perfect for creating a car upgrade. Such activity is calculated according to many parameters. But it is quite accessible to every person and is created in the shortest possible time. High-quality painting of your vehicle is an excellent opportunity to make it more comfortable and acceptable for further use. With all this, you spend minimum quantity cash, and update your car. A person with a painted car feels more confident on the road.
You can paint any car in a workshop in just a couple of hours, but the guarantee for such a coating will be more than 10 years. And today, do-it-yourself polymer painting can be done without problems even in an ordinary garage. However, the final quality of the coating still depends on the correct implementation of the technology at all stages of the process.
Types of polymer paints
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Polymer powder paints are divided into:
- By color (RAL palette is used);
- By type of film former: based on epoxy resins, polyester, polyester-epoxy, polyamide;
- According to the texture of the resulting surface: glossy, matte, textured, metallic, moiré;
- Intended purpose: for internal and external work, for protection against rust, for producing chemically resistant, anti-friction, decorative, electrical insulating coatings.
Preparing the surface to be painted
It is worth noting that polymer painting of metal can only be carried out on a carefully prepared surface - there should be no oxides or rust. To do this, using sandblasting or shot blasting, the previous coating is removed. Then it is thoroughly degreased with special alcohol-containing liquids or detergents– this is the only way to achieve high adhesion of the powder coating used. And as a result of sandblasting, not only the old layer is removed, but it is also significantly strengthened top layer prepared surface.
Applying a powder layer
The powder is applied to the surface to be finished in two or three layers. This leaves no powder residue, and workers will not have to inhale caustic, dangerous fumes, as when using liquid paints and varnishes.
Powder heat treatment
Products with powder are baked for 15 minutes at a temperature of 200 degrees in a special oven. The polymer melts and adheres well to the surface to be painted, then a layer of polymer paint is formed. Since at high temperatures a polymer film is created from powder very quickly, and it also quickly undergoes crystallization during cooling - this is why time resources are so saved when using it. This is how polymerization occurs, creating an impact-resistant coating with anti-corrosion properties. Later, similar products that are colored with polyurea are resistant to high temperatures.
Cooling process
The baked metal products are removed from the oven and given time to cool. After cooling, the polymer coating can be finished by any mechanical methods - polishing, cutting, drilling, edge finishing, and so on. The products have an exact color match according to the RAL catalog and smooth edges of the pattern.
After all the work has been completed, the vehicle can be fully equipped - it is ready for subsequent use.
Advantages of polymer painting
Here are the main advantages that polymer painting has over other technologies:
- The paints contain no toxic substances;
- The paint used is significantly saved;
- The coating is highly durable;
- It takes very little time for the polymer paint to harden;
- Durability of the coating;
- Wide range of structures and colors.
Disadvantages of polymer painting
Polymer painting technology also has its disadvantages:
- Quite a large investment (one-time);
- Limited possibilities of using the equipment;
- Complex adjustment of thin layer paint application;
- Difficulties that arise when painting in low temperatures.
Polymer paint is a composition that is produced using waste-free technology. These mixtures are environmentally friendly and are formed from polymer powders that are applied to the surface to be painted. different products. If the coating is carried out in a factory, then after treating the surface or product with polymer paint, the base is heated and held at a certain temperature for several minutes.
Main Features
Polymer paint has many advantages; it is cheaper because it does not have solvents, which liquid formulations play the role of carriers for film formation. The curing time of such compositions is reduced, since film formation occurs at high speed. The coating can be done in one layer, which distinguishes this composition from conventional paints, which require multi-layer application with repeated drying.
During the work, complex operations such as adjusting the viscosity parameter to the required value, as well as monitoring this value, are eliminated. Powder formulations are supplied ready-made, making them easy to apply. After reviewing the range of such products, you can choose one of 5,000 colors, textures and shades. After using the composition, spray equipment is easy to clean, since it is much easier to remove the powder than multiple layers of liquid paint.
Polymer paint creates a single-layer, rather thick coating, which allows saving due to its 100% dry matter content. When applied under pressure, powder mixtures lose up to 4% in volume, this is an advantage over liquid materials, which lose up to 40%. The resulting coatings have excellent physical and mechanical properties, and the surface is characterized by chemical resistance.
Main types of polymer paints
If you are interested in polymer paint, then you should familiarize yourself with the range of these products. Such materials can be polyester, epoxy, polyurethane or epoxy-polyester. The main advantage of epoxy paints is great combination physical, mechanical and electrical insulating qualities. Such coatings are characterized by high adhesion, characterized by chemical resistance and mechanical strength. The bases are resistant to acids and alkalis, fuel, oil, water, which allows the use of epoxy composition for internal and external protection of main pipelines.
If you plan to use epoxy polymer paints, you can use them to create a layer whose thickness can reach 500 microns. In this case, good hardness, high impact strength and elasticity will be observed over the entire surface. However, there are also disadvantages of the coating, which are expressed in limited weather resistance. In open areas, chalking and a tendency to yellowing may occur due to overheating.
Area of use of epoxy polymer paints
Epoxy polymer powder paint is used to produce hard coatings that are resistant to chemicals and solvents. Consumers of such powders are the fields of radio engineering and electrical engineering; in these areas, coatings replace many types of complex electrical insulation. You can coat electrical cabinets, office fittings, medical equipment and household supplies.
Area of use of polyester polymer paints
Similar compositions are used for finishing household items, garden, medical, metal, office furniture, sports equipment, as well as electrical equipment, etc. Polyesters are in great demand due to their unique decorative qualities. Modern technology production of powder paints has allowed us to expand color scheme coatings and achieve different textures.
Areas of use of polyester and polyurethane polymer paints
Polyester paint for polymer coatings is used for processing travel accessories, agricultural machinery, car wheels, as well as aluminum and steel profiles for door and window openings. Polyester compounds are versatile as they can be used for indoor and outdoor applications. As a result, it is possible to obtain a glossy surface, the gloss of which reaches 90%. As an alternative solution, you can choose a polyester blend, which allows you to create a matte or semi-matte surface.
Polyurethane paints based on a polymer are characterized by a stable shine and are characterized by water and weather resistance.
and are resistant to mineral oils, fuels and solvents. Polyurethane paints are used to protect products that are subject to abrasive wear and friction. They can be applied to some types of chemical equipment and containers intended for storing gaseous and liquid chemicals. Polyurethane paints can be used as a primer before using other powder paints such as polyacrylic or epoxy.
Purpose of polymer paint for metal
Polymer paint for metal contains a solvent, special additives, polystyrene, and pigment. This mixture is also called liquid plastic and is a solution of crushed polystyrene foam in solvent or toluene. Considering the polymer composition for metal, PS-160 can be cited as an example. This mixture is used for treating pipelines, protecting metal structures of swimming pools, covering metal floors, and also for painting load-bearing elements of buildings. As for pipelines, heating mains should also be included here. Metal floors can be covered on ships, inside industrial and storage facilities. This polymer floor paint can protect surfaces that are constantly in contact with water.
Purpose and properties of acrylic polymer compositions
Acrylic polymer paints can be used for interior and exterior work on facades, as well as for repairing and painting metal roofs. It is recommended to apply a primer before applying this composition. Among the characteristics of these mixtures one can highlight long term operation, which reaches 20 years. It is impossible not to mention the possibility of obtaining durable and durable coating, excellent resistance to high humidity, temperature changes and exposure to the sun. Among other things, these paints are heat and frost resistant. After application to the surface, they dry quite quickly, forming a thin, smooth and extremely durable protective film. During operation, it exhibits the qualities of resistance to chemicals and various cleaning mixtures. Apply acrylic paints very simple, they do not require the use of expensive equipment. Acrylic polymer compositions have high adhesion to the base, they are environmentally friendly and harmless to human health.
Polyurethane polymer paint for concrete
This coloring matter acts as the most resistant to influence negative factors. Surfaces are not afraid of petroleum products, chemical compositions and solvents.
Due to this characteristic, polyurethane paint can be used for painting garages, hangars, industrial premises and basements. After coating with this product, the surface acquires the qualities of protection from impacts and mechanical damage. The layer can be glossy or matte, and for one square meter you will use approximately 400 g. Before starting painting work, the surface is treated with a primer, and then polyurethane paint is applied in 2 layers. The second of them should be applied only after the first has completely dried, which will happen in about a day.
Conclusion
Among polymer paints you can find universal ones, such as epoxy, which can be used for interior and exterior work. The advantage of this dye is that it can replace the primer, allowing you to save money.
When buying a car, we want to preserve its original appearance as long as possible. After all, the paintwork of the body is constantly exposed to sand, crushed stone and gravel flying out from under the wheels of passing vehicles, falling or low-growing branches, and adverse environmental factors. All this leads to the formation of minor damage - chips, scratches and dents. This is why anti-gravel films that protect the surface of the body are so popular today. New technology protecting the body using polymer powder painting will keep it in perfect condition for decades.
Polymer powder painting Types of polymer paints for cars
The use of polymer powder coatings is the most modern and effective way protection of the car body. Polymer painting makes it invulnerable to external mechanical influences, the influence of aggressive environments, and for a long time preserves the perfect appearance of the car, giving the surface standard quality and high aesthetics.
Today there is a wide variety of polymer paints, which can be classified into types according to a variety of criteria. All of them are divided into two large groups according to the principle of formation of the polymer layer:
- thermosetting, which form a film on the surface of the metal as a result chemical reaction molten powder particles;
- thermoplastic paints, when applied, a diaper is formed without a chemical reaction, by fusing the particles.
Thermoplastic paint
Based on the type of substance that forms the film, polymer paint for a car can be:
- polyamide;
- polyester;
- based on epoxy resins;
- polyester-epoxy.
There are polymer powder paints that can be used to give the surface of a car body a different texture:
- glossy paints, ideal for even and smooth surfaces without the slightest flaws;
- matte;
- textured paints that well mask various defects on the metal of the body;
- metallic effect paints;
- polymer powder coatings with moire effect.
Matt paint
According to their intended purpose, there are polymer paints of the following types:
- for interior and exterior work;
- for protection against corrosion;
- paints that create a chemically resistant surface;
- electrical insulating paints;
- antifriction polymer coatings;
- decorative paints.
Polymer painting
The modern market can offer the widest selection of polymer car paint colors of any shade from the RAL palette, which expands the possibilities of creating a different exterior.
How is polymer powder painting of a car performed?
The technology of polymer powder painting includes several sequential stages:
- Preparing the surface to be thoroughly cleaned paint coating, and then degrease with alcohol solutions. The best way cleaning is sandblasting, which will not only remove all old paint, but will also strengthen the top layer of metal. There should be no oxides or rust left on the surface.
- Application of polymer powder paint using the electrostatic method using a spray gun in the form of special device, pistol type. Negatively charged powder, falling on the grounded surface of the car body, is held on it due to the potential difference. Devices for applying powder paint are equipped with a recovery system that captures powder that has not reached the part being painted and feeds it back to the receiving hopper. Therefore, paint consumption is very economical, and paint losses are practically eliminated.
- Heat treatment, for which the product to be painted is placed in a special oven called a polymerization chamber. Within 15-20 minutes at a temperature of 200 o C, the granules of the polymer composition applied to the surface of the body melt and turn into a viscous fluid mixture, forming a homogeneous layer, which, polymerizing, turns into a high-strength film.
- The cooling process occurs naturally when the painted product is removed from the oven. At this stage, it is already possible to carry out any mechanical processing of the painted surfaces, for example, grinding or finishing edges.
Application of polymer powder paint
Before painting, you need to remove from the car all parts covering the body, as well as those elements that can be deformed under the influence of operating temperature cameras.
Advantages and disadvantages of polymer car painting
Among the advantages of applying polymer powder paint to a car body over other methods of painting it, it should be noted:
- high durability of the coating, characterized by wear resistance, resistance to mechanical stress and the influence of adverse external factors, including chemical exposure to aggressive environments, such a coating does not scratch, does not peel off, and retains an aesthetic appearance for a long time;
- economical use of paint, because the coating thickness is only 60-80 microns;
- the safety of the painting process, since the powder does not contain any solvents or toxic substances;
- significantly less time spent on painting and cooling the surface being painted than when using paints and varnishes; immediately after cooling, which occurs quite quickly, you can start using the car;
- a wide selection of paint colors, and the ability to obtain a structured surface that well hides existing defects on the body;
- high durability, the service life of the polymer powder coating is at least 20 years.
There are significantly fewer disadvantages of polymer metal painting than advantages, and the main ones are:
- the ability to perform work only in workshop conditions, using special equipment;
- impossibility of tinting, that is, obtaining different shades by mixing various colors, for painting, ready-made powder paints from the manufacturer are used;
- limitation of the dimensions of the parts to be painted, depending on the size of the polarizing chamber;
- applicability for coloring only heat-resistant materials;
- It is difficult to eliminate painting defects; they cannot be eliminated locally, but require repainting the entire product.
Polymer painting is used not only for the car body, but also for its other parts, for example, wheel rims. This is the most reliable way today to protect your car from damage, give it an ideal appearance and extend its service life. metal elements cars.
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Polymer painting of cars. Types of polymer powder paints used for painting cars. Features of technology and algorithm for applying polymer coating. Advantages and disadvantages of polymer painting of a car.
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When buying a car, we want to preserve its original appearance as long as possible. After all, the paintwork of the body is constantly exposed to sand, crushed stone and gravel flying out from under the wheels of passing vehicles, falling or low-growing branches, and adverse environmental factors. All this leads to the formation of minor damage - chips, scratches and dents. This is why anti-gravel films that protect the surface of the body are so popular today. New technology for protecting the body using polymer powder painting will keep it in perfect condition for decades.
Polymer powder painting
Types of polymer paints for cars
The use of polymer powder coatings is the most modern and effective way to protect the car body. Polymer painting makes it invulnerable to external mechanical influences and the influence of aggressive environments, and maintains the perfect appearance of the car for a long time, giving the surface standard quality and high aesthetics.
Today there is a wide variety of polymer paints, which can be classified into types according to a variety of criteria. All of them are divided into two large groups according to the principle of formation of the polymer layer:
- thermosetting, which form a film on the surface of the metal as a result of a chemical reaction of molten powder particles;
- thermoplastic paints, when applied, a diaper is formed without a chemical reaction, by fusing the particles.
Thermoplastic paint
Based on the type of substance that forms the film, polymer paint for a car can be:
- polyamide;
- polyester;
- based on epoxy resins;
- polyester-epoxy.
There are polymer powder paints that can be used to give the surface of a car body a different texture:
- glossy paints, ideal for even and smooth surfaces without the slightest flaws;
- matte;
- textured paints that well mask various defects on the metal of the body;
- metallic effect paints;
- polymer powder coatings with moire effect.
Matt paint
According to their intended purpose, there are polymer paints of the following types:
- for interior and exterior work;
- for protection against corrosion;
- paints that create a chemically resistant surface;
- electrical insulating paints;
- antifriction polymer coatings;
- decorative paints.
Polymer painting
The modern market can offer the widest selection of polymer car paint colors of any shade from the RAL palette, which expands the possibilities of creating a different exterior.
How is polymer powder painting of a car performed?
The technology of polymer powder painting includes several sequential stages:
- Preparation of the surface, which must be thoroughly cleaned of paint and varnish, and then degreased with alcohol solutions. The best cleaning method is sandblasting, which will not only remove all the old paint, but also strengthen the top layer of metal. There should be no oxides or rust left on the surface.
- Application of polymer powder paint using the electrostatic method, using a spray gun in the form of a special pistol-type device. Negatively charged powder, falling on the grounded surface of the car body, is held on it due to the potential difference. Devices for applying powder paint are equipped with a recovery system that captures powder that has not reached the part being painted and feeds it back to the receiving hopper. Therefore, paint consumption is very economical, and its loss is practically eliminated.
- Heat treatment, for which the product to be painted is placed in a special oven called a polymerization chamber. Within 15-20 minutes at a temperature of 200 o C, the granules of the polymer composition applied to the surface of the body melt and turn into a viscous fluid mixture, forming a homogeneous layer, which, polymerizing, turns into a high-strength film.
- The cooling process occurs naturally when the painted product is removed from the oven. At this stage, it is already possible to carry out any mechanical processing of the painted surfaces, for example, grinding or finishing edges.
Application of polymer powder paint
Before painting, you need to remove from the car all parts covering the body, as well as those elements that can be deformed under the influence of the operating temperature of the camera.
Advantages and disadvantages of polymer car painting
Among the advantages of applying polymer powder paint to a car body over other methods of painting it, it should be noted:
- high durability of the coating, characterized by wear resistance, resistance to mechanical stress and the influence of adverse external factors, including chemical exposure to aggressive environments, such a coating does not scratch, does not peel off, and retains an aesthetic appearance for a long time;
- economical use of paint, because the coating thickness is only 60-80 microns;
- the safety of the painting process, since the powder does not contain any solvents or toxic substances;
- significantly less time spent on painting and cooling the surface being painted than when using paints and varnishes; immediately after cooling, which occurs quite quickly, you can start using the car;
- a wide selection of paint colors, and the ability to obtain a structured surface that well hides existing defects on the body;
- high durability, the service life of the polymer powder coating is at least 20 years.
There are significantly fewer disadvantages of polymer metal painting than advantages, and the main ones are:
- the ability to perform work only in workshop conditions, using special equipment;
- the impossibility of tinting, that is, obtaining different shades by mixing different colors; ready-made powder paints from the manufacturer are used for painting;
- limitation of the dimensions of the parts to be painted, depending on the size of the polarizing chamber;
- applicability for coloring only heat-resistant materials;
- It is difficult to eliminate painting defects; they cannot be eliminated locally, but require repainting the entire product.
Polymer painting is used not only for the car body, but also for its other parts, for example, wheel rims. This is the most reliable way today to protect your car from damage, give it an ideal appearance and extend the life of the metal elements of the car.
