Spray gun for acrylic paint: which paint sprayer should I choose?

 

Repairs in the apartment cannot do without painting. Most often, walls and ceilings are painted.

With high ceilings or a large area of paint, the process of applying the coloring substance with the help of rollers or brushes becomes time-consuming and takes a lot of time.

A spray gun or a paint sprayer can help you out.

Painting the walls and ceilingwith a spray gun not only reduces the painting time, but also allows you to create a high-quality surface.

But you need to be able to choose the right model of the paint sprayer.

The main advantages of paint sprayers for water-based paint

The use of sprayers for water-based paint significantly reduces the staining time.

The painted surface is obtained with a thin, uniform layer.

When sprayed, there are no traces of streaks or streaks on the surface.

The minimum thickness of the painted layer significantly reduces the drying time.

The process of painting surfaces of complex curvature, such as skirting boards, baguettes, is greatly facilitated.

Pay attention

The presence of extension cords allows you to paint a high-placed ceiling surface from the floor.

The paint sprayers are equipped with a set of replaceable nozzles. Nozzles are called spray nozzles that spray paint.

Types of paint sprayers

Spray guns for water-based paint are divided into three types: manual, electric, pneumatic.

And what kind of spray gun to choose, for painting with water-soluble paints?

The difficulty is that it is difficult to achieve fine granular spraying with low pressure.

The problem is that when using water-based paints in an apartment, drying does not occur as quickly as with paint on solvents.

The difficulty of choosing a spray gun is to choose the aisle between the diluent with water and the concealability of the paint.

If you put a nozzle with a larger diameter, then it is permissible to use a thicker composition. And if there is not enough pressure, then a large grain will form on the surface or the paint will not go into the sprayer. This is very important especially for electric spray guns.

Manual Paint Sprayer Spray Gun for Acrylic Paint: which paint sprayer should I choose?

Manual paint sprayers are devices consisting of a sprayer in the form of a fishing rod, a container, a hose and a pump. Most often, the tank and the pump are combined into one.

With the help of a pump, an excess pressure is created in a container with water-based paint. The paint is supplied under pressure through a hose to a sprayer attached to the end of the fishing rod.

This type of paint sprayers allow you to paint up to 200 ... 250 m2 of area per hour of work.

The main advantage of this type of spray guns is their simplicity, low cost, and ease of maintenance.

Spray guns for water-based paint are excellent assistants when painting ceilings with lime or chalk water solutions. The disadvantage of spray guns of this design is the large grain size of the painted surface. Advantages - the ability to pass small particles of the whitewash fraction.

To reduce the grain size, it is recommended to use high-quality water-based solutions. Well, do not forget about the control of the viscosity of the paint used.

A device for measuring the viscosity of paint

Viscosity is a scientific term. But in simple language, this means how the liquid resists when flowing through any hole. The lower the viscosity of the liquid, the faster the dye is ejected through the nozzle of the spray gun. The viscosity value affects the grain size of the treated surface.

Electric Paint Sprayer Spray Gun for Acrylic Paint: which paint sprayer should I choose?

Electric paint sprayers are devices that provide paint spraying in two ways: airless spraying and low-pressure spraying.

Structurally, electric paint sprayers are made in cases that visually resemble a hair dryer, at the end of which there is a node for spraying the coloring substance, and a container with paint is attached from below. The devices operate from a 220 V AC network. Their operation does not require additional devices and equipment.

To work at height, it is preferable to use electric spray guns. They are autonomous and easy to operate.

The main disadvantage is that when painting the walls, you have to dilute the acrylic paint with water, reduce its viscosity. At low viscosity, the density of the coloring solution decreases and reduces the concealability of the ceiling and wall surfaces. This forces you to apply several layers of paint to the surface.

Airless sprayers work by creating an increased pressure by the main unit of the device – the plunger pump. An increased pressure is created in the container and this will ensure the speed of painting and high quality of the painted surface.

Painting units

The devices are composite devices that have a manual paint sprayer, a pump with a pneumatic drive for supplying paint solution, heaters, filters connecting hoses, trolleys.

The cost of airless paint sprayers is in the range of 20 thousand rubles.

The best device is considered to be the installation of the Wagner Paint Crew company.

For low-pressure spray guns, an air flow with a pressure of up to 1 atm is created by an integrated pump or compressor.

The low-pressure spray gun for painting works from an alternating current network with a voltage of 220 V.

The mass of such a device does not exceed 1.3 kg. The pneumatic low-pressure paint sprayer is equipped with a tank up to 0.6 liters. The cost of this type of spray guns does not exceed 4 thousand rubles.

The best brands of electric spray guns are Wagner, Paint Zoom, Bosh, Balack& Decker, Elmos and others.

The best models are considered to be the Bosh brand: for example, the Bosch PFS 65.

This model includes a paint sprayer, an external compressor and connected hoses.

Pneumatic Paint Sprayer Spray Gun for Acrylic Paint: which paint sprayer should I choose?

Pneumatic spray guns are called devices, the spraying of the coloring substance in which is carried out by supplying compressed air under high pressure.

The pneumatic spray gun consists of the spray gun itself with a paint tank, a compressor and connecting hoses.

In pneumatic spray guns, containers for the coloring substance can be located both from below and from above.

The capacity of pneumatic paint sprayers is 400 m2 per hour.

Pneumatic paint sprayers are divided into three types according to the technology of supplying the coloring substance:

1.     According to HP technology, in which the paint is sprayed with air at a pressure of up to 5..7 atm and in a large volume. This is an outdated technology. With such spraying, no more than 50% of the paint gets to the surface. But due to the low cost of spray guns, the technology is still in demand.

2.     According to the HVLP technology, in which the paint is transferred by air at a pressure of less than 1 atm. and its high consumption. This technology increases the transfer of the coloring substance by up to 70%. Such spray guns cost at least 1500 rubles.

3.     According to LVLP technology, in which the paint is supplied with low-pressure air at a minimum flow rate. This technology allows you to transfer up to 90% of the coloring matter without increasing the speed of work. But the cost of spray guns of this technology can reach 12 ... 15 thousand rubles.

The most popular Russian spray gun is the SO-71 sprayer. But the passport does not indicate the possibility of the specified sprayer working with water-based paint.

It is best to use a pneumatic spray gun for painting walls and ceilings.

How to choose a spray gun for water-based paint?

When choosing the type and model of the sprayer, give preference to spray guns designed for working with water-based paints.

When choosing sprayers, pay special attention to the body material. Give preference to models with an aluminum body covered with an anti-corrosion nickel layer.

But the service life of the plastic case is not great, although its weight is much less.

The nozzle cover must be made of aluminum, brass or stainless steel.

The sealing gaskets must be made of Teflon. This will prevent the gaskets from being corroded by solvents.

Paint containers are made of both metal and transparent nylon, which allows you to control the paint level.

If you are not a professional, it is better to buy the simplest tool. The simplest paint sprayer costs from 500 rubles. Professional spray guns cost more than 3,500 rubles.

And which spray gun is better for painting the ceiling?

You can paint high ceilings either from scaffolding or from the floor.

If you plan to paint from the floor, it is better to use a manual spray gun in the form of a rod.

Preparation of paint material

Painting works begin with the preparation of a coloring solution. To prepare a water-based emulsion solution, water is added to the paint, the mixture is thoroughly mixed with an electric drill with a nozzle.

A whisk or a construction mixer is used as a nozzle.

A color is added to the thoroughly mixed solution.

The color should be added to the solution in small portions, constantly stirring until streaks are excluded.

Don't forget! The paint must be prepared with a reserve. If you do not have enough paint, then it will be difficult to guess with a new color.

Remember! The paint in the liquid state has a deeper and brighter shade than that dried on the surface.

The paint consumption is calculated based on the calculation that up to 0.5 liters of coloring solution will be required per 1 m2 of the surface.

How to use the paint sprayer correctly?

When painting the walls in an apartment, it is necessary to start painting from the corner and continue to the next corner without stopping, so that there are no differences and shades.

·        Using a paint sprayer, follow the inclination of the jet to the surface to be painted. The jet should be directed strictly perpendicular to the staining surface from a distance of no more than 70 cm from the surface. The recommended distance is 50 cm.

·        The movements of the spray gun should be uniform, circular, spiral. Try to keep a constant pace, do not paint the same areas twice.

·        Painting the surface with acrylic and water-based paint is performed necessarily in two layers. The second layer is applied after the previous layer has completely dried.

Conclusions:

·        buy paint sprayers, the passport of which indicates the possibility of working with water-based paints;

·        for work at height, give preference to electric paint sprayers;

·        it is more expedient to buy spray guns in an aluminum case;

·        for one-time work, it is better to use a cheap manual spray gun, with large volumes of painting work, you can not do without a pneumatic sprayer.