Which airless furniture painting system to choose? How to choose a spray gun for applying varnish? Where to buy high-quality and safe paints and varnishes for furniture

Choosing a spray gun for painting wooden house experienced by both professionals and people who are encountering its use for the first time. And if the master is familiar with the basic characteristics of the required equipment, and the question is choosing a brand, then a beginner needs to understand the classification and operating features of the products.

Electric spray gun for painting wooden houses provides spraying of decorative material through a built-in pump. Its peculiarity is its compactness and low cost.

Its operation does not require additional compressor equipment or additional fittings or hoses. It facilitates the work of the master in case of low demands on the quality of material application. The priority when choosing a device is the plastic case, metal needle and nozzle (nozzle, nozzle).

Pneumatic spray gun

To operate the device you will definitely need a compressor. Conventional designs are presented with a 25 liter receiver volume, consumption from 1.1 to 1.8 kW, pressure up to 8 bar and a capacity of 206 liters per minute. A similar product is created with a 50 liter receiver.
The capacity of the receiver (tank) is 24 to 50 liters. Choosing professional designs allows you to stock up on devices with a volume of 100 - 500 liters. Installation of a tank is required to accumulate air and create outlet pressure. When purchasing a compressor, you can find a connector for a threaded connection to a cylinder or a larger tank.
Engine power reaches up to 0.5 - 0.9 kW. However, large numbers are more a marketing ploy than an improvement in performance.
Pressure. The optimal limit is 8 bar. If this indicator is present, the product automatically turns off. When it drops to 6 bar, automatic pumping of the missing volume of air masses is ensured.

Performance. This parameter allows you to find out the amount of air mass intake in 1 minute. in liters. At the outlet, air is compressed and its losses reach up to 35%. Eventually:

206l/min.x0.65 = 133.9l/min

The performance indicator is 133.9 l/min. This is important to consider when purchasing a product.

With an average spray gun use of 185-220 l/min. lack of air is 50 l/min. and more.

Pressure requirements:

2.0 bar – LVLP;

4 bar – HVLP;

6 bar – HP.

When using these devices, the spray gun itself will work for 1-2 minutes without a compressor. increase in input and output.

Attention! When purchasing a sprayer, it is important to choose the right compressor. Its overheating will lead to failure.

Spray gun nozzle. The nozzle size ranges from 1mm to 2.8mm. The following options are suitable for the amateur: 1.5 and 2 mm.
The paint container is made of plastic or metal version. Their placement is carried out at the top or bottom. This does not affect the quality of painting. The choice depends on the convenience of work.
Adjustments include the ability to change the level of needle pressure, which provides changes in the amount of paint, air and torch shape.

The spray gun has been successfully used in many industries for a long time. In addition, this useful tool can be found on construction sites all over the world. The spray gun plays an important role in the home craftsman’s arsenal. Let's figure out what types of spray guns there are and which sprayer to choose for repairs.

The first spray guns appeared at the end of the nineteenth century. Interestingly, they were used in medicine - for treating open wounds with various drugs, as well as for inhalation of the throat and upper respiratory tract. The invention turned out to be incredibly successful and quite universal, so its author, American Alain DeVilbiss, left medicine and organized the production of spray guns. Alain and his son patented a hand-held spray gun for industrial and household use in 1907.

As you can see, this instrument has a long history. Over the years, it has been appreciated not only by furniture makers, industrial painters and auto repair workers, but also by builders involved in finishing works. Previously, there were no household spray guns in our country, almost none. You probably saw how at one time women from the Housing Office whitewashed the entrances with spray guns hand pump and a long metal fishing rod. Do you remember the Soviet blow-out vacuum cleaners, which also came with a plastic attachment in the form of a lid? We connect a half-liter can of paint and...

Now everything is a little different, the tool has noticeably evolved, becoming more functional, productive and technologically advanced. Modern sprayers allow short time perform a huge volume painting works In addition, they ensure the highest quality of the finished coating. If you need a smooth, evenly painted surface, then there is no alternative to a spray gun. Neither a roller (even with the smallest velor coat), nor even a brush, will give such a result. A spray bottle will be indispensable when processing large areas or when painting profile, curved, three-dimensional parts.

On this moment There are many options for paint sprayers that differ not only in price, but also in their special design and different principles of operation. Accordingly, their purpose is different. All spray guns are divided into two main categories:

Pneumatic.
With electric motor, airless.

What is the difference between an electric spray gun and a pneumatic one?

Let's be honest, they don't have much in common. It's both a matter of design and operating principles. A spray gun that runs on compressed air is called pneumatic. Naturally, for its operation you need a compressor with a receiver. Using a hose, a spray nozzle in the form of a gun with a tank is attached to the compressor - in fact, this is a spray gun. The compressor, using electricity, pumps air and supplies it to the spray gun. Air under pressure breaks the paint into tiny particles and pushes it out of the nozzle, forming a so-called torch.

A correctly selected, high-quality compressor-spray gun set costs a lot of money, which is why pneumatic spray guns are mainly used by professionals.

An electric spray gun (more precisely, it will be called “with an electric motor”) does not create compressed air, the paint is sprayed simply under pressure - using a built-in pump. Naturally, paints and varnishes cannot be properly crushed due to lack of air flow. The quality of coating produced by such a device is significantly inferior to the result available when using even the cheapest pneumatic analogues. True, in return we get a compact, inexpensive, easy-to-maintain tool that does not require any additional equipment or air purification equipment. It can make your life a lot easier home handyman, who periodically encounters painting work. The vast majority of experts consider electric paint sprayers to be household use.

To be fair, we note that there are electric spray guns with a mini-compressor. This is a kind of intermediate option. Here, a compressed air stream is also used for the spraying process. The compressor is clearly designed for the performance of its gun, it is made in a separate casing, they are connected with a special factory hose high pressure. The “spaced” spray gun that we hold in our hands is much lighter than a conventional monoblock electric model(no electric motor). In terms of paint quality, such examples are close to traditional pneumatics, however, they are not cheap - the price tag starts from 500 conventional units. Be careful, through television (all sorts of “shopping from the couch”) they are now actively distributing low-grade stylization for this class of professional instrument.

Our combat kit: FIAC COSMOS 2.4 plus MIOL 80-864

At one time, our team also faced a question of choice. We decided not to play roulette, and followed the example of our more experienced comrades - we purchased a decent, one might say, typical Italian mid-level compressor FIAC COSMOS 2.4. It was paired with a simple high-pressure pistol from a well-known Kharkov company - MIOL 80-864. The set turned out to be well-balanced; there was never a case where the compressor switched off for “pumping up”, or the thermal relay tripped due to overheating. Its productivity of 240 l/min easily covers the “gluttony” of the pistol, which is estimated at 75-210 liters per minute.

There were doubts about the capacity of the receiver - which one to take, 24 or 50 liters. As usual, we made a choice in favor of compactness and light weight - and did not regret it. The COSMOS 2.4 model is only 65 cm in length, 30 kg in weight, has good ergonomics and is very easy to transport across the floors of our facilities. Despite the minimum volume of the receiver, the COSMOS 2.4 maintains a pressure of 4-6 bar (the operating pressure of our gun) stably, without failures during active analysis, since its automation is set to a range from 6 to 8 bar. The engine the developers of the Fiats company used is not the weakest (1.5 kW), but it operates stably and is not too loud. Its aluminum body with pronounced fins dissipates heat well, and the built-in fan also contributes to this. It is quite natural that the Italian device has clear pressure regulation, a high-quality pressure gauge, a really working safety valve, and sensitive thermal protection. Our compressor has one drawback: after a work shift, a few drops of oil are found on the floor - apparently, some kind of gasket is “sweating”. But we decided not to interfere with the engine, because it hasn’t let us down for several years in a row, we just always put something under it.

A little about the MIOL 80-864 pistol. We don’t paint cars, we don’t varnish windows/doors, so we didn’t bother too much and bought an inexpensive high-pressure sprayer. But the quality of the coating that it allows you to obtain will completely satisfy any builder. At the same time, it works quite quickly, coverage is good, a small percentage of paint transfer does not scare us (consumption is better than with a brush or roller). It is light, maneuverable, fits well in the hand, although it lacks a little rubber or something similar on the handle. Sometimes you want to have a larger tank (a 0.6 liter tank is included in the kit), but logic dictates that then the paints will be in working hand You will need to keep it longer. Manufacturers installed the nozzle on the pistol with a diameter of 1.5 mm, and we are completely satisfied with it; we see no point in buying other sizes. With this gun we spray not only water-soluble paints and varnishes, but also more viscous materials - primers, drying oil, and sometimes enamels. In general, we thought that we were buying a disposable (“if it breaks, throw it away, buy another”) pistol in order to understand the principles of how a spray gun works, but it has been pleasing us for several years now.

From the very beginning, the compressor and the gun were connected with polyurethane twisted hose MIOL 81-333. However, he turned out to be not entirely convenient for working “on the spot”; he constantly got confused and tried to get caught on something. As a result, it was replaced with a regular straight hose from old stocks. The problem has been resolved.

Our pneumatic kit turned out to be quite budget-friendly. It copes with all the assigned tasks easily; nothing better is needed for construction. Basically, all maintenance comes down to draining moisture from the receiver and regular cleaning of the gun (no more time than washing or preserving the roller). Now it’s hard for me to understand how some people who are seriously involved in repairs manage without a spray gun.

How to choose a gun for a pneumatic spray gun using spray technology

If in spray guns with electric motors the manufacturer has balanced the parameters of the gun and the injection motor in a single monoblock tool, then in the case of pneumatics we can independently choose (are forced to choose) both the parameters of the spray gun and the characteristics of the compressor. What’s most interesting is that the main part is the spray gun (gun), and based on its performance, the compressor is selected.

There are three types of spray guns depending on the operating pressure and volume of air consumed. They were simply named: HP, HVLP, LVLP.

HP technology (an abbreviation from English for “high pressure”) is used in low-price instruments. At the moment, for a number of reasons, it has faded into the background, or, to be more precise, into the third plan. What is its peculiarity? The main thing is high level operating pressure reaching 5-6 bar, with a relatively low air flow. This spray gun allows you to paint quickly, but high pressure is an obstacle to perfect quality. The main disadvantage of HP technology is low percentage material transfer. Interesting term, isn't it? It means in what percentage the paint gets on the object, and how much of it evaporates with the air flow. So, these devices transfer no more than 45-50% of paint and varnish materials; we throw the rest under pressure, as they say, to the wind. It turns out that not only is expensive paint wasted, but the air in the area is also polluted. work area. As a result, in some countries environmental organizations have banned the use of such spray guns. These tools are good for their simplicity and their budget cost. High-pressure guns are ideal for most repair and construction work involving spraying various compounds.

HVLP technology (“high air, low pressure”) is rightfully considered the most effective. The air at the inlet to the gun is under high pressure, and at the outlet it is quite discharged (0.7-1 bar). The paint transfer coefficient increases to over 65%, and, of course, the quality of work also improves. All this is thanks to the excellent stability of the torch, the specific design of the spray gun, its high-tech nozzle and special air channels. HVLP guns are very economical, but they are not cheap.

LVLP (little air - low pressure) air spray guns have the best transfer - up to 80%, respectively, losses in the form of fog are reduced to 20%. However, they do not require a large amount of air, so the requirements for compressor performance are not the most stringent. You only need about 180-200 liters per minute. Oddly enough, the speed of work will not be affected, and the quality of spraying will also be excellent.

There are a few more nuances. For example, the location of a container for paints and varnishes. The upper location of the tank provides good weight distribution and speed of operation. The containers located on top have a small volume (up to one liter); they are usually made of nylon or plastic, often transparent (they allow you to control the level of the material). The lower tanks are larger (1 liter or more), they are often made of metal. During a break, the gun can be placed on such a container.

Manufacturers of spray guns often offer replacement nozzles of different diameters - from 1 to 3 mm. For spraying building mixtures nozzles with a hole up to 6-7 mm can be used. Depending on the type of material being sprayed, its grain size and viscosity, the nozzle is actually selected. Nozzles with a hole of 1.4-1.7 mm are considered universal.

It is worth paying attention to the possibility of adjustments that affect the spraying process. This includes limiting the needle stroke (the amount of paint supplied), setting the parameters of the outlet air, and adjusting the shape of the torch. Some models are equipped with a pressure gauge.

How to choose a compressor

The compressor is the most important part of a pneumatic spray gun, so in order to assemble a truly capable kit, you need to choose it wisely. There are several indicators in which compressors differ from each other, some of them are traditional for most models, while others force us to think seriously.

Engine power Most compressors on the market range between 1.2-1.8 kW. This is quite enough to ensure good characteristics the entire unit. The motors on average compressors are even very similar in appearance, one might say identical. Unscrupulous manufacturers may claim clearly overestimated power, although their compressors actually produce neither more pressure nor more air. They are driven by the desire to make the product more marketable; they should not spend extra money on non-existent or unnecessary watts.

A receiver volume of 24-50 liters is already a tradition. For construction purposes, this is what you need - the accumulated air will be enough to perform most types of work, while the device remains moderately compact and lightweight. But if the compressor is used in any production, in intensive mode, then budget option may not be possible - you need to pay attention to larger volume receiver (100-500 liters). Essentially, a larger receiver size can compensate/increase the overall performance of the compressor to some extent.

Operating pressure. Usually there is no choice here - the vast majority of compressors compress the air in the receiver to 8 bar, after which the automation turns it off. Manufacturers set the lower threshold (switching threshold) to 6 bar; when this indicator is reached, the motor turns on and “pumps” the missing volume of air into the receiver. More advanced units pump 10 bar or more.

Performance. But here, take a closer look. This concept reflects how many liters of compressed air the compressor produces per minute. Why is this so important? We have already said that guns differ in spray technology, for normal operation they need different amounts of air, different pressures. Let’s say HVLP spray guns “consume” a lot of air (from 180 to 550 l/min). If the compressor is not selected correctly, then the pressure drops too quickly, even with the engine constantly running, and at the outlet it “floats” - the quality of atomization noticeably deteriorates. You will have to take frequent breaks to pump up. If the motor seems to be coping, but is working at the limit, then it may overheat and, again, turn off the automation (thermal relay), in addition, we have premature wear of the piston group.

Interestingly, manufacturers indicate inlet capacity (how much air is sucked in). In practice, air losses occur during its compression, and they amount to up to 35%. Experts believe that to guarantee a correct calculation (the actual volume of air at the outlet), we must multiply the declared performance by a factor of 0.65-0.7. It turns out that the common 206x0.65 = 133.9 l/min. Most manufacturers are a little more loyal in this matter; they offer to make calculations with increased productivity - at least 15% of the pistol’s gluttony.

One conclusion suggests itself: compressor performance is the most important indicator that must be taken into account with a reserve.

Important compressor options include: availability automatic shutdown during overloads, pressure adjustments with a pressure gauge and safety valve, built-in filters and cooling fans, ergonomic layout with comfortable handles and wheels (for compact mobile models).

Electric spray gun: hand-held or floor-mounted

Electric (airless) sprayers come in both manual and floor-mounted versions. A hand-held spray gun is the most affordable and most common version of this class of power tool. Because of its characteristic sound and vibration, it is also called a “buzzing gun.” In this case, the entire unit is assembled in one unit, consisting of a motor with a piston pump, a pistol grip, a reservoir and a spray nozzle (valve, nozzle...). Many companies produce such a tool, some of them have been more successful, some less, but the fact remains that these are household spray guns for do-it-yourself work. The Bosch company did not deceive the consumer and sells all its painting tools in green “household” cases. The vast majority of hand-held electric spray guns have relatively low efficiency paint consumption (transfer), the quality of spraying often leaves much to be desired. However, we cannot help but be captivated by the high speed of painting work, ease of operation, compactness and low price of such a tool.

Floor-standing spray guns are produced by a limited number of companies: Campbell Hausfeld, Wagner, Earlex. Such units are distinguished by high technical characteristics inherent in professional tools. They have a more powerful and heavier motor (you don’t need to hold it in your hands), a powerful pump, an expanded set of adjustments, and a larger margin of safety, which allows you to use the tool for commercial purposes - for painting large volumes (wooden and metal constructions, ceilings, walls...). We control only a gun connected to a high-pressure hose - the power unit and reservoir are installed separately on the frame (for example, the Wagner Paint Crew model).

Characteristics of electric spray guns

As we have already said, the developers have already balanced the main indicators of the tool related to performance; they all turned out to be more or less similar. There is no point in selecting specific units based on minor differences in engine power or pump operating pressure. Believe me, the extra watts won’t make a difference, but the rest is worth understanding in detail.

First of all, when choosing an electric spray gun, pay attention to what compositions it is intended for spraying. Some of them can only work with water-soluble painting materials, others are more universal; they can easily cope with solvent-based paints and varnishes, oils, and viscous compounds.

Having adjustments is a very important position. Most hand-held electric spray guns have minimal adjustment options. As a rule, this is a rough setting of the supply volume of the painting material and the shape of the torch (Black&Decker BDPS200 or “Fiolent” KR1-260). More advanced models may have electronic feed control, the ability to preset operating pressure, change the piston speed, and several spray modes. Floor sprayers, as a rule, are always more functional (Earlex HV500 SprayPort).

Pay attention to the type of tank. The most convenient tanks are made of transparent plastic, located at the bottom - they have a larger volume and allow you to control the amount of remaining liquid (BOSCH PFS 65). For extensive work, built-in reservoirs will be too small, so it makes sense to look at models with the ability to draw paint from a separate container. By the way, floor-mounted spray guns have large tanks of 7-10 liters or suck the composition directly from a bucket (Wagner ProjectPRO 117).

Some manufacturers produce special extension cords for their spray guns or long guns, sometimes with rotating mechanism. This makes it possible to paint most surfaces without stepladders or scaffolding. Imagine that you need to process a ceiling, but you need to keep the tool at a short distance from the plane. Speaking of distance, there are spray guns with a laser pointer that shows the working distance - very convenient for beginners. Here again the Wagner company distinguished itself (Wide Shot model).

Floor sprayers may have different hose lengths - from 1.5 meters (Miol HVLP 79-560 - shoulder version) to 60 meters, sometimes such a difference greatly affects convenience and performance. The paint composition can be transported over a limited distance. For example, the DP Airless DP-6820 can feed material 30 meters horizontally and 15 meters upward.

It is very important how high-quality plastic is used to make the spray gun, how many metal parts the manufacturers used (it is better if the needle is made of metal), how precisely all the elements of the tool are fitted, especially the moving ones. There are usually no repair kits for electric sprayers; a breakdown will immediately entail replacing the tool.

The vibration of a hand-held electric spray gun can be very strong. Before purchasing, turn on the tool, take the opportunity to compare several models, this will also allow you to decide on the ergonomics of the product that are suitable for you. Pay attention to the weight of the tool.

Give preference to products from a well-known, time-tested brand. Overpaying for a brand will most likely save you from hassle and forced downtime.

We all love to paint, because it is at this stage that the objects of our work acquire their special features and finished appearance. A sprayer is a tool that will bring true pleasure from work, you just need to choose it correctly for your specific purposes.

Carrying out painting work is a rather labor-intensive task, especially if you need to apply a layer of paint, varnish or protective coating on uneven surface or a large surface area. The spray gun (spray gun) greatly simplifies the task, with the help of which the application various coatings happens quickly, efficiently and with minimal physical costs.

The device is designed to create an aerosol, that is, small particles of a substance suspended in the air, for example, paint, varnish, whitewash solution, antiseptic, etc. More precisely, a spray gun is needed for the directed transfer of small particles of a substance onto any surface in an even layer, without the formation of bubbles and drips.

The device for spraying paint and other substances in its various modifications is used in the following areas.

Types of spray guns

The family of paint sprayers is usually divided into types, and their design determines the principle of applying paint and protective coatings. The following types of spray guns are available on the painting equipment market:

electrical;
pneumatic;
battery;
airless;
high and low pressure;
with upper and lower tank.

Let's figure out what the difference between them is.

Electric spray guns

An electric paint sprayer is a device without a compressor, but which has a built-in piston pump driven by an electromagnet with an oscillating bar. Also, some paint sprayers are with built-in compressor, creating an air flow due to the rotation of the turbine by an electric motor.

Turbine spray gun just like the piston one, it operates from a 220 V network. And since this type of device does not require a special purchase of a compressor with a receiver, they are often chosen for domestic use.

In addition, there are electric paint sprayers with a remote compressor. The latter can be large in size and designed to be placed on the floor. Basically, these are devices for professional use.

Household appliances have compact dimensions, and during operation are suspended on the shoulder using a strap included in the set for the devices.

Pneumatic spray guns

A pneumatic spray gun operates only on compressed air.

To produce the latter a compressor is required. To stabilize the air flow and maintain the air pressure at the same level, a receiver is installed between the compressor and the spray gun.

As a rule, the pneumatic type of device is professional spray gun, thanks to which they achieve ideal quality of paint and varnish coatings. The tool has standard diameter

nozzles 1.4 mm. If you install a nozzle with a diameter of 1.8 mm or more, the device will turn into a primer spray gun. Among professional models you can see electronic spray gun

, that is, with a digital pressure gauge. The presence of an electronic pressure gauge allows for precise adjustment of the device, which is very important if you want to achieve the same intensity of dye spraying. Pneumatic devices also include automatic paint sprayer, which is mainly used in production as part of automatic installations

for applying various decorative and protective coatings.

Advice! To understand which spray gun is better - electric or pneumatic (air), you need to know for what purpose the device will be used. For domestic needs, if high demands are not placed on the quality of the coating, an electric spray gun is well suited. But for painting cars it is better to use a pneumatic tool.

Cordless spray guns Battery-powered paint sprayers are analogues of conventional electrical appliances

. The only advantage of battery sprayers is mobility, which makes it possible to work in places where there is no electrical network. But it is worth considering that this manual spray gun will not be able to work for a long time due to low battery . On average, such a device works for 20-30 minutes, after which the battery needs to be replaced. Therefore, a cordless spray gun is usually used to perform

small-scale works.

Airless paint sprayers As the name of the device implies, paint is sprayed without the use of compressed air. In airless sprayers (plunger), paint is fed into the nozzle under high pressure

. To ensure the supply of paint to the plunger spray gun, a piston pump driven by an electric motor is used.

To decide which spray gun is better - air or airless, you need to understand for what purposes the devices will be used. involves the formation of a soft torch of coloring matter, which is applied to the surface to be treated in a thin layer. Thanks to this, high quality coating is achieved, including in hard-to-reach or embossed places. But due to the low viscosity of the paint and varnish material and low air pressure, not all small particles of the substance reach the surface to be painted. A considerable part of them remains in the air and surrounds the painter.

Airless spray gun, as mentioned above, operates at high pressure, which makes it possible to use a more viscous dye. Consequently, its particles have a greater mass than with air spraying, and they all reach the surface to be painted without swirling. In this case, paint is consumed more economically. Although it is possible to achieve high-quality paintwork using the airless method, this type of spray gun is not suitable for painting relief parts. This is explained by the greater thickness of the paint, which will be applied unevenly to the product. complex design and form “surges”.

High and low pressure spray guns

High pressure units(up to 56 atmospheres) are intended for spraying viscous paint and varnish compositions. In addition, these spray guns can be used to apply bitumen-based mastics, primers and compounds with anti-corrosion properties.

The low pressure spray gun is the most popular device among car painters. The spray gun can operate at a system pressure of 2 atm. and allows you to save up to 30% of paint and varnish compositions.

Important! To operate the device, you need a compressor with a receiver and, preferably, a reducer that allows you to regulate the air pressure at the inlet to the gun.

Appliances with upper and lower tank

If the spray gun is equipped with tank at the top, then the paint is supplied to the tool due to the force of attraction. A spray gun with an upper tank is used to apply various coatings to small areas. Devices with an upper tank are more economical, since the paint in them is completely consumed, which cannot be said about a tool where the tank for the spray gun is installed in the lower part.

At bottom location of the container liquid is supplied to the device due to the vacuum created by the flow of compressed air. A spray gun with a lower tank is usually used for coating large areas, since the volume of the container of such a device significantly exceeds the volume of the upper tank.

Powder machines

A powder spray gun is a device that operates with dry dyes. The main element of the device is an electrostatic converter.

But still, the operation of the device is impossible without compressed air. The latter, passing through the spray gun, transfers the powder towards the electrostatic converter, where it is ionized. Next, ionized powder particles are blown through a nozzle onto the surface to be painted, which has an opposite charge, and stick to it.

Important! Powder paint sprayers allow you to apply a uniform layer of paint not only on flat surfaces, but also on textured ones.

There are also powder sprayers that do not use electricity to ionize the powder particles. Such devices are called tribostatic.

Powder dye particles in the gun are ionized due to friction against the internal walls of the tribostatic barrel and collision with each other, after which they are blown onto the surface to be treated with a stream of air.

Gun type

All types of paint sprayers also differ in the type of gun.

Choosing a spray gun for domestic and professional use

To choose the right spray gun for home or professional use, you need to consider the following characteristics of the tool:

class (type) of paint sprayer;
tank material and its location;
dimensions and weight;
nozzle size;
power (for electrical devices).

Spray gun class

Since an HVLP paint sprayer can operate at low pressure and provide acceptable painting quality, it is better to buy just such a gun model for your home. Of course, for the professional field you will need to purchase an industrial LVLP class tool.

Tank material and location

The tank for paint and other compounds is made of either plastic or metal. Plastic tanks They are convenient because they are translucent and allow you to visually determine the level of paint and varnish material poured into it. In favor metal containers for spray bottles, it means that they can be washed with aggressive solvents that can damage the plastic tank.

Advice! For home use A device with a plastic tank will be sufficient, since poorly soluble coloring compounds are almost never used in everyday life.

Also, when choosing a spray gun, you should consider tank location, which determines whether the painter can perform this or that job. The upper location of the container is considered universal and allows the composition to be applied to both the ceiling and walls. In some devices, the upper tank can be connected using a flexible hose, allowing you to install the container in the desired position.

When the tank is secured at the bottom, the device will work only in horizontal position. If the tool is lifted vertically, for example, to whitewash the ceiling, then the solution will stop flowing into the tool. The only thing that is convenient about the lower tank is its increased volume, which allows you to pour a large amount of paint or other composition into it.

Dimensions and weight

To a greater extent, these parameters relate for electric paint sprayers. The larger the size of the compressor or pump, the higher the performance of the device for spraying compounds. That's why professional craftsmen They prefer to use electric sprayers with an external compressor (floor-mounted).

Household electric paint sprayers have small size, a pump built into the gun and are convenient for small painting jobs around the house. In addition, this mini tool can also be produced with no external compressor large sizes . Due to its low weight, it can be carried on the shoulder while using the spray gun.

Nozzle size

The nozzle from the spray gun, or rather the diameter of its outlet (nozzle), directly affects the size of the drop of paint and varnish material that is sprayed. When choosing a paint sprayer, you need to know what types of work will be carried out with its help. For spraying various materials it is necessary to select the appropriate nozzle diameter:

for spraying paints on water based, as well as applying base and varnish, a nozzle diameter of 1.2-1.6 mm is required;
for paints and varnishes on acrylic base a nozzle with a diameter of 1.4-1.7 mm is required;
Devices with a nozzle with a diameter of 1.5-2.2 mm work well with primers;
for thick compositions, for example, liquid putties, a nozzle diameter of 2.5-3 mm will be required.

Advice! For professional use, you should buy a device whose nozzle heads are made of stainless steel. These elements will last longer than their plastic counterparts, which cannot withstand frequent washing in solvents.

Power of electric spray guns

Devices having power up to 500 W, are considered household, have a low cost and are more suitable for beginner painters. They do not work well with thick compositions; they apply the dye unevenly, which affects the quality of the coating.

For professional use, you should choose devices power more than 500 W, which can cope with compounds of any viscosity and spray them evenly onto the surface to be treated.

Useful additions

Since spray guns are used to carry out large quantities of various types work, then in some cases, for more efficient use of devices, additional elements are connected to them.

This filter can also work as a moisture-oil separator.