Reviews of spray guns for water-based paint

 

Spray gun for acrylic paint: which paint sprayer should I choose? At the stage of painting, the idea becomes complete - whether it is painting the walls and ceilings of the room, or any interior details, finishing the fence or garden benches. You can, of course, use more traditional means – a brush or a roller, but they will not give such an effect as a sprayer. The spray gun for water-based paint will cope with any surface quickly, efficiently and economically.

Types of spray guns

Spray guns can be manual, electric and pneumatic. Each model has its own advantages and disadvantages. The choice of characteristics depends on why you need this device. It is obvious that the sprayer for the house, which is purchased for painting several walls and small parts, and the sprayer for professional activities will be different.

Manual

A manual spray gun for water-based paint is the simplest and most budget option. It consists of a paint tank with a built-in pump and a flexible hose with a working nozzle. The length of the nozzle can be adjusted depending on the needs.

The pump pumps air and creates the necessary pressure, when the trigger is pressed, the paint escapes from the nozzle through the nozzle under the influence of compressed air. The productivity ranges from 200 to 225 m2 / hour.

Painting the walls with a spray gun will be twice as fast as painting with a brush or roller.

Important

When choosing this device, it is important to pay attention to some aspects. The metal parts must be coated with a composition that protects against corrosion.

Weight and center of gravity are important parameters that you should pay attention to for ease of operation. It is better to give preference to a model with a multi-dimensional nozzle. The nozzles must be of different diameters.

In order for the manual sprayer to be a real assistant, it is important to choose a model with high-quality details

Advantages:

·        low price;

·        easy to use;

·        simple care;

·        mobility.

Disadvantages:

·        unstable pressure;

·        if used improperly, streaks may form;

·        only water solutions can be used.

Electric

The productivity of this tool is higher – up to 250 m2 / hour and it is easier to work with it, because constant high pressure ensures the application of a uniform layer of paint. Compared to manual, the electric spray gun is heavier, but still characterized by mobility.

In order to justify the cost of buying this tool, it is better to give preference to well-known manufacturers when choosing. For example, a spray gun from Bosh will last a long time and will be a reliable assistant.

It is worth paying attention to the size and material of the paint container, and the possibility of adjustment.

Pneumatic

A pneumatic spray gun is the most expensive option, but it provides the highest productivity (about 400 m2 / hour) and the highest coating quality.

You can choose a professional tool from the manufacturer Bosch, which is characterized by reliability and practicality. The disadvantage is that it needs a compressor to work, which must be chosen correctly, taking into account the needs of the spray gun.

In addition, pneumatic sprayers are not as mobile as electric ones.

It is worth noting that this is a universal tool. With its help, you can apply any coating by installing replaceable nozzles with the desired nozzle diameter. There are several types of pneumatic sprayers that differ in pressure and operating principle. The choice of one or another type depends on the experience of the master and what surfaces will be painted. Distinguish between:

 1.     HP-sprayers. These are high-pressure sprayers that allow you to work very quickly, but the percentage of paint transfer to the surface is 45-50%. The rest of the paint becomes fine dust and settles around. Painting the walls with an HP spray gun will take a little time, since the paint spray angle is wide.

2.     HVLP sprayers.Their efficiency is higher, reaching 65%.This is due to the fact that at a high air injection pressure, the outlet pressure is five times lower than the previous type of spray guns.

3.     LVLP sprayers. Here the minimum paint consumption is achieved, the transfer percentage is up to 80%. However, to use such equipment, you need experience, since the paint is supplied quickly. With inaccurate movements, drips are possible.

Compressor selection

The main parameters when choosing a compressor are: its pressure, power and performance. Dimensions and weight are also important. With regard to the working pressure, it should be borne in mind that it will not stay at the same level during the entire work. Some fluctuations indicated in the technical passport are normal, the main thing is to take them into account when choosing.

The performance shows how much air the compressor can handle per minute. The data are indicated mainly taking into account the temperature of 20 ° C. This should be taken into account, since with a change in temperature, the performance can also change, and it should cover the needs of the paint sprayer in the air with a margin. HVLP spray guns require, for example, about 350 liters of air per minute.

Additional characteristics of the compressor:

·        motor power . The more – the better;

·        voltage. Models with three-phase voltage will not work if you have a single-phase power supply, so you should pay attention to this when choosing;

·        the volume of the receiver . The smaller the air tank, the more times the compressor will be switched on and off to maintain the required pressure;

·        the noise level.

Additional parameters of spray guns

Spray gun for acrylic paint: which paint sprayer should I choose?In addition to the technical features on which the performance depends, it is worth paying attention to some additional parameters of paint sprayers.

For example, the paint tank is quite an important aspect. The material of the container can be metal or plastic. The advantages of metal are reliability and practicality, since you can use different compositions, not only water-soluble, without fear of damage to the tank.

The main thing is that the metal is covered with an anti-corrosion coating. The disadvantage is the greater weight of the container compared to the plastic one. The plastic tank is lighter, although not as durable. You can also control the remaining paint through the translucent walls of the container.

Location and size: There are models of spray guns, in which its upper or lower location is provided. At the top, the paint is used until the end, but this option may interfere with the review.

At the lower location, the view is not closed, but there will be paint residues on the bottom in any case. The size of the tank is selected depending on the front of the work, but too large a tank will be difficult to hold.

Some models of Bosh spray guns are equipped with an additional capacity so as not to interrupt work when the main one has run out of paint.

Reliability requirements

All models, with the exception of manual spray guns, are not too cheap, so reliability is an important requirement.

In addition, the more expensive the tool, the more expensive it will cost to repair it in case of a breakdown. It is important that all the holes are metal-preferably aluminum, brass or stainless steel.

The quality of gaskets is also a significant parameter – Teflon ones will serve best.

When choosing, you need to pay attention to the operation of the trigger – it should move smoothly, not too rigidly. In general, the spray gun should be convenient to use and maintain, because it will need to be regularly cleaned of paint residues. As an additional advantage, the package may include a suitcase for convenient storage of the device, additional accessories.

Features of use

Choosing and buying a spray gun does not guarantee a high-quality and economical application of paint. In order for the result to please, you need to choose the right paint and prepare the surface to be painted. To successfully use an electric or pneumatic spray gun for work, it is important to set it up correctly, because the result will depend on the amount of paint and air supplied.

Safe operation

It is important to follow the instructions on the packaging of water-based paint with regard to temperature and humidity. Painting is allowed if the temperature is not lower than 5 ° C and not higher than 30 ° C, the optimal humidity is 55%. When working in closed rooms, there should be good ventilation.

If the painting is done on the street, you need to wait for the appropriate weather-without wind and precipitation. Do not neglect personal protective equipment – be sure to use respirators, gloves, protective clothing.

Before directing the sprayer to the surface to be painted, you should take it aside, since at the beginning of the work, the paint may be applied unevenly.

Surface preparation for painting

Since the spray gun is suitable for painting any surfaces, preparation for painting consists in mandatory priming of the surface in order for the coating to hold firmly.

It is worth noting that if you want to use a spray gun to paint the ceiling with water-based paint, the latter should be very well leveled, since a thin and uniform layer of paint will not hide, but rather emphasize all the defects.

It is worth remembering that some types of spray guns (for example, manual or pneumatic high-pressure) when used create a curtain of small paint particles around, so it is worth protecting the remaining surfaces.

The viscosity of the paint directly affects the final result. Water-based paint can be slightly diluted with water (no more than 10%), since at a lower viscosity it is applied in a thinner and more uniform layer. Before painting the main surface, it is worth testing the result on a small sample. This will allow you to adjust the necessary supply of paint and air, check the consistency of the paint.

The technology of using a paint sprayer

To get the desired result, you need to follow several rules:

1.     You need to start coloring from the least important area.

2.     The torch should be directed at a right angle to the surface.

3.     It is necessary to keep the spray gun at the same distance during the entire coloring.

4.     The speed of movement should be the same and uniform.

5.     Wooden products are painted along the fibers.

6.     To detect staining defects, the lighting should be placed on the side.

7.     If you find unpainted areas, you need to immediately cover them with paint, while the remote control should move faster than when you first painted.

8.     Coloring is carried out in several layers (from two), the next one is applied after the previous one has completely dried. The first layer dries for 2-3 hours, the next-longer.

9.     If the color defects are noticed too late, you need to clean this area, re-prepare it and re-paint it.

Conclusion

Water-based paint will help to bring bright shades to any interior. It is suitable for both internal and external work, while it does not harm the environment.

The spray gun will be an excellent assistant in its application, if you choose it correctly, and it will last a long time.

Given the variety of offers on the market, everyone will be able to choose the right price – quality ratio, and focusing on the above tips, the selection of a spray gun will not be a problem.