Airbrush (painting gun) – the tool which is used for paint spraying (varnish, putty) during construction finishing work. Coloring by airbrush allows to receive smooth and plain surface.
How to choose airbrush
When choosing the tool pay attention to material of which the airbrush is made. It is desirable that it was the aluminum body with covering from nickel for protection from corrosion. Manufacture the body and of strong plastic, their main advantage that they it is easier on weight.
Before buying airbrush, check, openings in nozzle cover are how qualitatively made. They are made of brass, stainless steel aluminum. To evaluate the accuracy of work of needle in snivel, pull several times the trigger.
One more important part of the device of spray for paint – sealing gaskets. In the tools working with low pressure, good sealing of connections is especially necessary. Laying from teflon is considered as the most reliable, but usually applies them in expensive professional paint blowers.
After works, wash airbrush with solvent. For this purpose pour it in tank and use the tool, as during the work with paint. The spray will be clean when of the nozzle begins to go out transparent solvent.
The arrangement of paint pot can be top or lower. This difference does not play special role, as well as material of which the tank is made. It is easier to wash capacity from metal, but it, unlike nylon, does not allow to watch paint consumption.
For cleaning of air head and the nozzle (from varnish or paint), it is necessary to use brush from natural bristle.
Types of airbrushes
In total there are three types of airbrushes: pneumatic, electric and hand-operated. Pneumatic sprays have found broad application for painting works. Pneumatic tools spray paint by means of compressed air. During the work with paints such sprays can process up to 400 square meters an hour, with varnishes this indicator decreases to 50 squares. Paint and air in the pneumatic spray move through separate entrances and connect in air compartment. Thus, the painting torch turns out. The compressor is necessary for work of compressor air spray pistol. Choosing the compressor for airbrush, pay attention to the power of its engine. For normal work of the majority of pneumatic sprays the average power has to be 1.2-1 kW. With what intensity air will be spent, depends on receiver volume. Finishing work in the intensive mode requires the compressor with receiver from 100 to 500 liters. The receiver with volume up to 50 liters on average will be suitable for work. They are divided by way of supply of paint on: - tools with giving by suction, - sprays with giving spontaneously, - tools with giving under pressure. In the first compressed forms the rarefied environment and paint is initially involved in airbrush, and then sprayed by air stream. Tank volume at such sprays to liter also use them to solutions of low and average viscosity. Secondly paint gradually flows from the top tank in the spray. Tank volume at them up to 900 grams. Such tool is used during small repair, to painting works with the small area; In the third solution moves from tank by artificially created pressure. Use them for viscous solutions to perform large volumes of works. The electric airbrush works from the normal socket. Work with electroairbrush does not require auxiliary equipment – the compressor, additional fitting and hoses. Use it for putting solutions, protective mixes and water-based paints on different types of surfaces. For house construction jobs the electroairbrush is the most acceptable and economic option. Supply of paint in electric sprays happens at the expense of pressure which is created by means of the fluctuating diaphragm. It is influenced in turn by the rod mechanism. By means of such tool it is possible to paint up to 260 square meters an hour. The hand-operated airbrush is used for coloring by water-based paints and by putting varnish on small squares. It represents the tank with the pump and hose. In the course of operation of the pump, solution sucks in in the tank, forming the necessary pressure in it, after that paint moves to nozzle. Performance of hand-operated airbrush reaches up to 200 square meters an hour.
The paint blower at which solution is in the capacity located in the bottom of the tool needs to be held vertically. Varnish, but not air will be inhausted so.
Preparation for work with airbrush
That the airbrush nozzle got littered less often, paint needs to be filtered through fine sieve or the gauze put in several layers. The tank of the spray is filled with paint on 3/4 volumes and well closed cover.