How to choose a compressor for a spray gun? what to use for DIY painting - review + video

• Electric spray guns - how to decide on the type of device
• Device selection criteria
• Manage procrastination
• Selecting the optimal nozzle diameter
• Materials for production
• When you can't formulate a goal
• What to look for when buying a used compressor
• Which fuel filter is best for diesel? Not so simple
• How to choose a compressor for car painting
• The best models in the mid-price segment
• Fulham, Burnley, Brighton and Stoke City made it to the 1/8 finals of the English League Cup
• Application area
• Expensive segment spray guns
• How to make eyelashes for headlights from LED strip
• Best spray gun for thick paint
• General information about eyelashes

Electric spray guns - how to decide on the type of device

Varieties of electric spray guns differ quite greatly from each other in terms of operating principle and form factor, therefore, you can decide which spray gun to choose only if you know exactly the scope of work for which it will be used.

Airless electric spray guns

Structurally, an electric airless spray gun consists of a nozzle, valve, cylinder, electromagnet, oscillating bar and piston. The principle of operation is as follows: the oscillating bar pushes the piston forward, and it returns back under the influence of a spring; when the piston moves back, a rarefied space is formed in front of it, where the paint is sucked in, and when moving forward, the paint is pushed out through the nozzle. Since a large number of oscillations and strokes of the piston occur per second, a continuous supply of paint is created.

1. Suction tube. 2. Valve. 3. Nozzle.

4. Cylinder. 5. Electromagnet. 6. Oscillating bar.

7. Adjustment screw. 8. Piston. 9. Piston spring.

When using this technology, it is impossible to obtain sufficiently small drops of paint - in this parameter, even a budget pneumatic spray gun wins by a large margin. The advantages of an airless spray gun are its overall compactness, unpretentiousness and relatively low cost, which makes it a good assistant in domestic conditions.

The principle of operation of an airless spray gun allows you to obtain a torch of the correct shape with clear outlines and use even high-viscosity paints and varnishes for work.

The characteristics of airless devices determine their scope of application: for any work in domestic conditions and when it is impossible or impractical to use pneumatic spray guns, for example, when applying viscous compositions.

Air electric spray guns

It is difficult to unequivocally classify such devices as pneumatic or electric - rather, they are a hybrid that takes all the best aspects from both types of spray guns. This is a standard design that works on the principle of pressurizing a container of paint, which is then passed through a tube and sprayed through the nozzle of the gun.

The method of applying paint and varnish materials is taken from a pneumatic spray gun, which is broken up by an air flow and applied in the thinnest possible layer. However, there is a mini compressor precisely designed for the gun. A big advantage of such devices is the ability to alternately use one spray gun for different types of paints and varnishes.

The disadvantages of electric air spray guns are the same as those of pneumatic ones - the occurrence of paint fog during operation, with corresponding restrictions.

Such devices are divided into spray guns with a built-in compressor and an external one. Spray guns with a built-in compressor are small in size and low in price, but are suitable for performing only those jobs where high quality coating is not required.

Devices with a remote compressor are more expensive, but they are more convenient to use, since the supercharger is located separately and connected to the gun through a hose. Such devices provide a fairly uniform supply of paint and have a number of adjustments, which allows you to achieve good coverage and quality of painting.

Painting stations

Essentially, these are the same hand-held spray guns, divided into a gun and a paint pump, but larger in size and with characteristics close to professional tools. They are equipped with a powerful electric motor and pump, which are mounted on a separate mobile platform, and painting is carried out with a separate spray gun connected to the pump with a high-pressure hose. Paint is supplied from the included reservoir or directly from a bucket into which the hose is inserted.

1. Paint supply hose. 2. Piston pump. 3. Spray gun.

4. Handle. 5. Housing with electric motor. 6. Paint suction hose.

7. Drain hose. 8. Pressure adjustment. 9. Legs. 10. Paint intake.

This spray gun has a large number of different adjustments, which allows you to configure it to work with any type of paint and use it on an industrial scale and in various fields of production.

Mechanical hand sprayer

Mechanical devices are simple and reliable

in use they are the most autonomous and mobile in comparison with electric and pneumatic models. Hand-held spray guns for water-based paints look similar to a mechanical pump. A piston spray gun is suitable for painting small areas. It does a great job of spraying paint. The main thing is to pay attention to the diameter of the spray nozzle in order to choose it correctly. The thicker the paint, the larger the nozzle size should be.

The hand-held spray gun consists of a metal body, a pump handle, a painting rod (extended spray arm), two valves (suction and shut-off), a suction filter, a pressure hose, and a shut-off pistol. The fishing rod makes spray guns for painting ceilings more convenient.

Device selection criteria

When choosing a spray gun for use at home, the owner needs to focus on his own needs. To do this, you need to understand what functions it will need. And only after that should you move on to studying the characteristics of the model that interests you.

The key parameters of the spray gun that should be considered when choosing are the following:

1. Pressure. Most compressors can compress air up to 6-8 bar. With this indicator, the motor automatically turns on and pumps in air. But there are devices that can maintain operating pressure at 10 bar.
2. Performance. One of the main characteristics on which the quality of the work performed depends. It should be understood that the performance of the tool is not affected in any way by the volume of compressed air that the device can produce in one minute of working time. The performance of a particular model can only be determined in practice by creating special conditions for it. Therefore, this parameter will be different for each device.
3. Spray adjustment. This feature can be very useful if you are going to paint the ceiling. With its help, you can change several actions without taking breaks during work:

• output air indicators;
• torch shape;
• needle stroke.

And some more tips:

1. For convenience and more delicate work, choose spray guns equipped with adjustments - air flow, paint flow, and torch shape. For example, adjusting the spray pattern on your paint sprayer will help achieve wider coverage.
2. Working with a paint sprayer requires careful cleaning of the air leaving the compressor from oil, which will inevitably be in it. If your compressor is not oil-free, you need to take care of cleaning the air from oil - install a filter at the outlet

Having replenished your knowledge base, you can safely go for a spray gun. To consolidate, better understand and remember, we recommend that you watch a specially prepared video that will help you determine which spray gun is better:

Source

Manage procrastination

If outsourcing isn't practical and you find yourself regularly putting off an important task, try turning on a procrastination control mechanism. When you realize you're mindlessly tidying up your desk instead of preparing a client presentation, take note of that moment and try to get back to what's important. Oddly enough, this technique works: just take it and start doing it

Does not exceed? Formulate and write down the consequences of not completing a task.

Oddly enough, this technique works: just take it and start doing it. Does not exceed? Formulate and write down the consequences of not completing the task.

You can set aside 30 minutes a day that you honestly devote to your friends' posts on Facebook. The main thing is to note the end of this blissful half hour and return to solving the problem.

Photo: Unsplash

Another option for dealing with your smartphone getting stuck is to put it away, delete all games, and hide social media icons. After all, there are strict methods such as blockers of individual sites or the Internet as a whole, applications that limit your stay on a specific site. For example, Freedom, Cold Turkey, SelfControl and others.

If you have been procrastinating on a task for a month using all available means, check: is it really related to the strategic goal? Is there a resource? What exactly is stopping you? How to get around this? One client of mine hated cold calling strangers. When meeting in person, such problems did not arise; he was all charm and confidence and could “sell” his interlocutor even a joint project, even a pink elephant.

As a result, it was decided to delegate the “first calls” to the maximum extent possible to the assistant, deputies, or transfer communication to the format of letters and work on the reasons with a psychologist.

Selecting the optimal nozzle diameter

To ensure that the consumption of working material when painting a car is optimal and there is no overuse of paint, it is important to choose the right nozzle. This is also necessary to ensure that the performance of the spray gun compressor is maximum, since it is the nozzle that determines the flow of working fluid and the size of the spray spot

A correctly selected nozzle will provide maximum control of the car painting process and high speed of work. When choosing a nozzle, consider:

• optimal print size;
• viscosity of the working material;
• maximum paint consumption.

• for applying the base coating, a diameter of 1.2-1.3 mm is suitable;
• for varnishes and acrylic paints – 1.4-1.5 mm;
• for acrylic 2K primers use nozzles with a diameter of 1.5-1.7 mm;
• for spraying liquid putty - 1.8-2.0 mm and more.

To achieve optimal performance, the maximum flow rate of the spray gun should be higher than that of the nozzle. When operating the tool, use a nozzle with a lower flow rate. The frequently used nozzle wears out and the hole becomes larger, which entails an increase in paint consumption.

When preparing the spray gun compressor for operation, it is important to make sure that the nozzle and the device fit together. For example, the maximum flow rate of your unit is 1.4 l/min, you need to spray latex paint using a 0.43 mm nozzle

It has a flow rate of 1.17 l/min, and such a nozzle can be used in this case, since its flow rate is less than that of a spray gun. You can increase the service life of the main components of the spray gun by following simple recommendations.

1. After each painting, the car tool must be thoroughly cleaned.
2. Selecting the right nozzle will increase the duration of its use.
3. Worn nozzles negatively affect other parts of the spray gun, so they should be replaced promptly.

Selecting a compressor for a spray gun based on performance and receiver volume

And, of course, the capabilities of your compressor should be enough to power the spray gun.
Working with a weak compressor will affect the quality of the paint - in the form of drops and smudges. Let us recall the basic formula for matching a compressor and a pneumatic tool: the compressor output output should be 20 percent greater than the average air consumption of the spray gun.

Example.

For a MASTER G 600 spray gun with an air flow rate of 198 l/min, you need a compressor with an output capacity of 198 l/min + 20% = 238 l/min. Since the manufacturer usually specifies the input capacity, a reduction factor must be applied. For a belt compressor it is 0.75, for a coaxial compressor it is 0.65. That is, we need a coaxial compressor 238/0.65 = 366 l/min or a belt compressor 317 l/min.

As for the volume of the receiver, 24-50 liters is the golden mean between compactness and frequency of activation during continuous operation. This is quite enough even for professional repairmen.

When you can't formulate a goal

If, however, the applicant is not able to clearly and concisely formulate a single goal by combining all the elements, then you can list all the elements separately. You will get a list that may suit the employer

In this case, it is important to make the list readable:

it should be divided into paragraphs, and not listed on a line; all proposals must be brought into a single stylistic form; the list must be formatted correctly; it is important to maintain uniform punctuation.

This listing option is quite acceptable and appropriate in a resume. In case the employer has any questions. He will be able to ask them at the interview.

However, this method also has its disadvantages. If in a single formulation it is possible to highlight the main element, supporting it with auxiliary ones, then such an option is hardly acceptable in the list. A list is usually perceived as a list of equivalent elements. In this option, it turns out that all these elements are the same for you as a specialist, and this will not allow the employer to understand which specific item attracts you most.

If all attempts are unsuccessful, then it is better to exclude this column from the resume or, in the case of an electronic version of filling out on the website, leave it blank. As a last resort, you can use a template option and write a proposal along the lines of “raising the work entrusted to me to a qualitatively new level.”

A well-filled column about professional goals will help you find an ideal job, where the employer and subordinate understand each other and pursue the same goals, and the work brings pleasure. If the work you really love, then your goals will most likely be achieved, bringing satisfaction not only from work, but also from life.

Video description

Here we show how to properly assemble a new hand-held spray gun:
Finish from the corner towards the exit from the room. The main part of the wall is painted so that the direction of the torch is perpendicular to the working area. Be sure to let the coating dry completely between coats. In this case, each layer is formed across the previous one.

Recommendations for paint preparation

The viscosity factor is important in relation to the sprayed mass. To obtain a high-quality result, it is necessary to dilute the source material. Tap or distilled water is added to the water emulsion; solvents 646 and white spirit are added to the enamels. Some manufacturers of spray guns for painting prescribe proportions in the instructions for using the tool.

Paint thinners Source wp.com

What to look for when buying a used compressor

If you don’t have enough money to buy a new one, you can buy a used compressor. There is, of course, a risk of taking a “tired”, worn-out tool (few people will say under what conditions it worked and whether it was serviced correctly)

If you don’t know how to choose a used compressor, then you need to pay attention to some things and check it

When buying a used compressor, first evaluate its appearance. If it is dirty, stained (with oil, paint, etc.), it means it worked in difficult conditions, or it was simply not looked after.

Ask the seller if the rings, pistons, seals have been changed and what kind of repairs have been made. If the piston group was replaced, then the compressor has worked quite a lot, I would not recommend buying one.

How to check a used compressor? Do the following test: Completely bleed the air receiver, start the compressor and note the time. If it pumps for a very long time (before shutting down) and as the pressure in the receiver increases, “the work seems to slow down,” then the compressor requires repair. A clear sign of poor compression in the piston group.

Pay attention to the color and level of the oil in the crankcase; if it is very dark, it needs to be replaced or topped up if the level is low. When buying a used instrument, listen for extraneous noises, knocks, etc., there should not be any

What popular models are presented on the Russian market?

The considered instrument models are usually used in the professional field:

• when painting furniture;
• if you need to update the appearance of your car and other equipment.

If the master who plans to purchase one of the presented models for himself is a beginner, the optimal solution would be to purchase a reliable and at the same time high-quality tool.

A wide range of models is presented on the domestic market. Among the manufacturers that are in high demand are:

• Anest Iwata;
• Walcon;
• Sata;

The products of these brands have one single drawback - high cost. However, the level of quality of the processed surface makes them the best.

Devilbis Flg 5 RP

The tool belongs to the low price segment of the professional level.

Main technical characteristics:

• compressed air consumption – 270 liters per minute;
• flame width – 280 mm;
• the body is made of high-quality aluminum, the nozzle with needle is made of stainless steel;
• shows effective work with any type of paint and varnish material, with the exception of those. Which are made on a water basis.

The disadvantage is the lack of a case for storage and transportation. The average cost is 8 thousand rubles.

Walcom ASTUROME 9011 HVLP 210

It is considered an inexpensive, but at the same time quite effective model, which is designed for high-quality spraying of paint and varnish material.

Despite the spray system used, HVLP requires a small volume of compressed air - only 220 liters per minute.

The advantage is the presence of a case for storage and transportation. The basic package includes a gearbox with spare parts:

• retaining rings;
• springs;
• gaskets;
• air valve stem;
• oils for cleaning instruments.

The average cost of a pneumatic spray gun is 10 thousand rubles.

Walcom SLIM S HVLP

A very advanced tool that is used to apply a paint coating with the highest transfer rates to the surface being treated - about 85%.

The optimized spray system requires a minimum compressed air volume consumption of approximately 200 liters per minute.

The basic package includes:

• convenient plastic case for storing and transporting the spray gun;
• regulator with built-in pressure gauge;
• oil;
• key;
• special brush for cleaning.

The average cost is 11 thousand rubles.

SATAjet 1000B RP

A distinctive feature is convenience and a high level of quality, which is quite enough to carry out large-scale work.

Effective paint application is achieved with a compressor that is capable of producing approximately 280 liters of compressed air per minute. Transfer of up to 70% of the paint to the treated surface is carried out.

The basic package includes a cardboard box with a set of necessary keys and a cleaning brush.

The average cost is about 17 thousand rubles.

How to choose a compressor for car painting

When choosing air compressors, pressure plays a key role. The peculiarity of pneumatic networks is that it is necessary to constantly maintain pressure in the range from 6 to 7 bar. If this is not provided by the system, then it is necessary to purchase a screw model, which has a maximum pressure of about 10 bar.

When the compressor unit increases by at least 1 bar, electricity consumption increases by 9%. If you choose the right compressor, it will save costs and not electricity. Therefore, when choosing a compressor, make adjustments based on the calculations of the combination you need for maximum efficiency of your work.

Variety of types of devices

If you are planning to carry out renovations in your apartment, we recommend purchasing a pneumatic spray gun for painting work. These devices differ from each other in different characteristics, including the spraying method:

• Traditional . Their operation is based on the principle of using high pressure compressed air. Paint sprayers of this type are able to provide high quality work and uniform coating. But experts do not recommend using them for painting structures with complex surface configurations. This is due to the high level of waste when using such a spray gun.
• With low compressed air pressure . For such devices it does not exceed 0.7 atmospheres. Accordingly, the use of such paint sprayers ensures lower consumption of the starting material. But due to low pressure, the coating is less uniform. In addition, the time required for painting increases, which negatively affects the condition of the compressor.
• With medium compressed air pressure . These are the sprayers that are recommended for most users. They are characterized by low material consumption and provide very good coating quality.

Application area

This device can be called a universal unit, the main task of which is to deliver gas and air under pressure to the surface being treated.

When painting is used, a compressed mixture is prepared in it, which subsequently enters the spray gun. Devices with a small chamber and low pressure are not able to cope with this task efficiently, leading to the appearance of unevenness and smudges. They can only be used for pumping up wheels. But powerful structures have a very wide range of actions:

applying a coloring composition or primer to the vehicle (provided that a spray gun is used); purging of pipes of various machine systems, cleaning of mechanical components; ensuring the operation of car diagnostic devices; working with screwdrivers, impact wrenches and other construction equipment; car wash; spraying anti-corrosion agents, which is especially important when treating hard-to-reach areas.

The compressor is also often used as an auxiliary device for grinding and polishing with pneumatic tools.

Overview characteristics of spray guns

Spray guns for painting walls and ceilings are designed for uniform distribution of water-based building materials by spraying. As a rule, the tool is used when working with varnishes and paints. Primers are applied less frequently, since it creates not an impregnating, but an opaque layer.

Regarding the design, the model range may have significant differences. However, the principle of operation of the paint sprayer is identical:

• working fluid is taken from the reservoir;
• the composition is pumped to the nozzle;
• under pressure through a stationary or replaceable nozzle, the flow is split into small drops, which are transferred through the air to the base being treated.

Based on this, the following advantages of using a spray gun for painting walls :

• Experience . In order to accurately and efficiently paint objects or structures with an equal layer of thickness using a brush or roller, it takes relatively more time than with a sprayer. The automated device requires a few minutes and attentiveness to master.

Decorative painting with “stains” from a brush Source avalremont.ru

• Result . After working with the paint sprayer, the resulting coating will be continuous, uniform and without streaks or smudges. To achieve this quality using a roller or brushes, you need to choose the right tool for a particular paint material, often more than one. Experience and knowledge regarding the nuances of coating formation and the characteristics of each type of bristle or fur coat are also important.
• Deadlines . Using the spraying method, painting is carried out noticeably faster than with compact manual analogues. This is especially true for finishing rooms with high ceilings and large structures. For comparison, the speed of a roller in the hands of a master is approximately 2–4 times lower than that of an automatic device. There are models with which you can paint up to 400 square meters. meters per hour. And this takes into account not the classic two-layer coating, but the necessary three-layer approach.

The master notes several shortcomings. But they are not so significant compared to the advantages. Among the main disadvantages are the cost of the tools, a more complex device and rules of use. Also, when working with some models, paint loss occurs. But in total this has practically no effect on material consumption.

Spraying paintwork Source pbs.twimg.com

Expensive segment spray guns

Manufacturers of professional spray guns, which are leaders and occupy the market segment of expensive premium paint sprayers, are described below. These are not the only brands of expensive professional spray guns, but they are the most famous.

DeVilbiss

DeVilbiss is a British company that has been manufacturing spray guns for over 100 years. In many countries, professional painters use paint sprayers from this company. DeVilbiss spray guns are lightweight and ergonomically designed.

DeVilbiss has recently had its own representative office in Russia and you can easily purchase any model of spray gun and accessories.

SATA

The spray guns of this company are developed by German engineers. They are of high quality and have their own developments. The paint sprayers of this company are characterized by high wear resistance, which is important for continuous use in workshops.

IWATA

Anest Iwata is a Japanese company that has been around for over 80 years. Produces very high quality spray guns. Has its own innovative developments. The model range includes paint sprayers with a side-mounted tank that can be rotated. By changing the angle of the barrel, it is very convenient to paint hard-to-reach places, as well as horizontal surfaces, and you are not afraid that the paint material will spill out or stop spraying due to the unstable supply of paint from the barrel.

Having personal experience of using a spray gun from this company, I can say that the gun is easy to set up, applies any paint and varnish materials perfectly and copes well with painting with a “transition”.

Recommendations from the experts

Painting the ceiling with a spray gun involves directing the nozzles in a vertical or inclined position. In this case, the choice should be made in favor of electric models. With their help, the result is uniform, without drops or gaps.

If you are deciding which spray gun is best for painting walls and ceilings for your home, then you should consider devices that pump up pressure from 4 Atm. If you plan to work with different materials, then you need to choose devices with replaceable nozzles. Regarding the tank, a metal one will be more practical due to durability, reliability and easier cleaning (the same applies to the body). True, plastic is lighter and allows you to control the filling of the container due to the relative transparency of the walls.

Best spray gun for thick paint

HUBERTH R500 RP20500-14 is designed for finishing surface coating with various types of paints and varnishes. The device is based on the use of LVLP technology. This allows:

• reduce paint consumption;
• create a soft and fine spray;
• produce a minimal amount of paint mist.

The design of the finishing gun allows you to smoothly regulate the supply of working material, change the shape of the torch, and also guarantees changes in inlet pressure without sudden jumps.

Pros:

• used in working with a wide range of paints and varnishes;
• smooth and precise supply of paint to the work area;
• the quality of the coating is ensured by the high quality of the nozzle, air cap and adjusting needle;
• the working part of the tool is made of stainless steel, which guarantees the absence of corrosion;
• Comfortable control of the process is ensured by a trigger mechanism with a soft and smooth, low-resistance trigger pull;
• Changing the shape of the torch (round or flat) can be done with one hand;
• availability of a large number of replacement kits;
• a reliable grip is ensured by the textured surface of the handle;
• the presence of a “single” type of wrench for all nuts;
• The working process of coating is characterized by low fire and explosion hazard.

Minuses:

• the presence of factory lubricant causes significant loss of time when preparing the device for work;
• fasteners are installed with a large torque or on glue - this causes significant effort when unscrewing;
• Lack of user instructions that are clear and understandable for beginners.

Characteristics:

Equipment:

• packing box;
• spray gun (spray gun);
• instructions for use;
• additional nozzle Ø 1.4 mm.

Additional accessories:

• female or male adapter fitting;
• extension hose.

The product HUBERTH R500 RP20500-14 is manufactured in Germany (the birthplace of the brand). Manufacturer's warranty on the tool is 6 months.

Carrying out painting works by spraying

In the private sector, as a rule, wallpaper or plastered surfaces are painted.

Painting walls with a spray gun Source amazon.com

Painting with water-based paint using a spray gun is carried out under pressure, so the working base must first be freed from dust, dirt and loose finishing elements. Regarding the tool, you need to make settings to work with a specific composition. It is recommended to carry out a test application of the material on newspaper or cardboard to determine the optimal distance between the nozzle and the object (range is 15-45 cm).