If you have a sufficiently large surface, it is recommended to paint surfaces from the sprayer. In this case, painting can be done much faster than with a roller or brush. It is not difficult to paint objects of irregular or rough shape from a sprayer.
Sometimes it is necessary to close or seal the part of the surface on which the paint should not fall. Surface protection should be sufficiently thorough and this should be given considerable time.
The sprayer system consists of two main parts: a tank with paint and the mechanism itself, which sprays paint.
What is the modern paint sprayer?
Power to the system is supplied from a source having a voltage of 220 volts. Detailed operation of the sprayer is presented below.
The “heart” of the sprayer is the electromagnetic motor. The engine pushes the piston forward through the valve. When the piston spring is retracted, the paint is sucked into the chamber, where negative pressure is formed. When moving the piston forward, the paint is squeezed out through the nozzle and sprayed. Turning the handle allows you to change the length of the piston, which, in turn, changes the volume of paint supplied to the nozzle.
• A) Armature.
• B) Electromagnetic engine.
• C) Piston spring.
• D) Piston.
• F) Fuse nozzle.
• G) Tank.
• H) Filter.
• I) Petal spring.
• J) Bypass overflow.
• K) Knob to adjust ink supply.
• N) Grounding plug.
When using a system with a spray gun, it is always necessary to remember that the paint is supplied to the nozzle under strong pressure. This means that if the elementary safety regulations are not followed, you will be injured. Here are the basic rules that you must always follow:
• while you are not using the sprayer, remove the plug from the power source;
• while working with the sprayer, reduce to a minimum the number of people staying with you;
• Do not point the spray nozzle at yourself, at other people, at animals. The pressure in the nebulizer can be so strong that the paint can enter the bloodstream, breaking through the skin. Also, with improper use, it is possible to damage the eardrum, eyes or cause any other injury, the consequences of which will be impossible to correct;
• If you intend to use the sprayer for other purposes (for example, clean the nozzle that is clogged), disconnect it from the power supply;
• working with spray your goggles and a respirator. Points need to choose special for working with paints, and a reusable respirator with a replaceable filter. You should not pay attention to cheap respirators when it comes to health;
• before work it is necessary to take care of ventilation and ventilation of the room in which painting will be carried out.
Before working with a sprayer, the process of preparing the surface is not fundamentally different from other preparatory processes before painting. The main feature is the protection (shelter) of those surfaces that should not be painted.
Gently fill the paint into the spray tank.
Also, you need to take care of the protection of vegetation, if painting occurs on the street, and the floor, which can get sprayed paint. Considering the peculiarity of this type of paint application, it is not recommended to carry out exterior paint work on a windy day.
Preparing the system for painting
Using the instructions of the manufacturer of the spray system, it is necessary to assemble it. To check the performance of the system, pass a little solvent through the system.
Carefully fill the spray bottle with pre-prepared paint. Given that different types of nozzles can be used for different types of work, choose the one that suits you best.
Using the nozzle with the desired cone, you can achieve the desired effect on different surfaces:
• A nozzle that provides a large spray cone is ideal for painting walls;
• A narrow cone nozzle is needed for painting minor elements.
Connect the parts of the sprayer, following the manufacturer’s instructions.
Depending on the type and complexity of the work, you can use both the hose and the tank directly. If the surface to be painted is large or painted from a ladder, replace the tank with a hose and capacity with paint. The container can be a can of paint or a special pack of paint.
To paint large areas, we replace the usual paint tank with a flexible hose and a capacious container (knapsack) for the paint.
In the best way the operation of the spray system can be checked by painting a surface. A wide cone spray should provide a large spray surface. Thus, uniform painting is provided. The process of applying the paint layer can be adjusted by a screw, under which the paint is supplied and its consumption.
Choosing the right distance when spraying paint is the secret of an even, beautiful layer.
With proper pressure adjustment, paint should flow well. If this does not happen, the problem probably lies in the nozzle itself. It must be carefully checked.
If the paint has a low viscosity and the nozzle is large, it is likely that the paint will be sprayed with large drops.
With viscous paint and a small nozzle, the center of deposition will become uneven: a heavy, thick layer in center and thin at the edges. Given all this, it is necessary to choose the optimal combination of the nozzle size of the sprayer and the physical properties of the paint.
Airless paint sprayer reviews
And so the advantages of airless spray paint: simplifies the work in two ways: first, if you want to paint a large area using a large amount of paint and paint twice as fast as using a roller or brush. Secondly, if you want to get the surface smooth whether it is a wall, ceiling or door, for this you only use airless spray. The airless sprayer works by supplying paint at a very high pressure up to 300 bar through the hose and then through a tiny hole in the tip of the gun. The tip (nozzle) is designed to disperse the paint evenly in the form of a fan sprays the smallest droplets. Using different nozzles, you can spray the paint exactly as your task requires: stained, wide or narrow stripe, dotted or with different coating thickness.
After a small workout, you can use airless spray painting equipment like a professional painter! AND
It is without loss of quality as a result of the work. What is undoubtedly a big plus. And since airless spray equipment can supply material (paint) with a special pump directly from a large tank, be it a bucket or even a barrel. You can use a large amount of material in a short period of time without losing time for replacing the paint container or cleaning the sprayer, this makes airless spraying particularly attractive and suitable for large tasks.
But there are also disadvantages of airless spraying: first, small particles of paint do not all fall on the desired surface due to a small \ “cloud / fog \”. Most of the paint enters the air, where it can drift and settle on the adjacent surface with the working area of color. Accordingly, it requires additional time from you to prepare the surface before painting. Secondly, the disadvantage is extra time, which it is required to wash off the painting equipment, hose, filters and spray gun after work, with brushes it is easier to throw them :-). All this will require financial costs for the purchase of several liters of solvent.
But, despite these shortcomings, airless spraying can save you a lot of time and allows you to get a coating that is almost impossible to get with a brush.
Wagner paint sprayer reviews
Wagner W 450
Wagner W 450 is compatible with water-dispersion and latex paints with viscosity up to 3400 MPa. It is intended for painting walls during interior decoration. The volume of material consumption is regulated in the range of 0-230 ml / min, which allows to achieve high-quality results. The spacious spray tank provides a long working cycle.
Allows in the shortest possible time to paint big surfaces. This model has a large tank (1300 ml). Remote compressor reduces the weight of the spray gun. Easy to operate.
Relief pad on the handle for comfortable work; Painting speed – 15 m2 for 10 minutes; Output spray power – 110 W
Disadvantages: Requires skill in painting and adjusting paint consumption. (First, you need to completely unscrew the limiter, so that there is a minimum dispersion, then add to the required one. But this is rather a matter of experience.
Comment: This model was purchased a month ago for the purpose of painting wooden two-storey house 8×10. The painting took almost 80 liters of primer and paint and 3 weeks of work. Spray gun satisfied 100%.
Bought for: To paint a house from a bar
Wagner W 690 Flexio
Easy to operate;
Relief pad on the handle for comfortable work;
Roomy paint tank;
The air hose 3.5 meters long allows to work at a considerable distance;
Adjustment of the volume of the material supply – 0-400 ml / min (paint for interior walls), 0-200 ml / min (varnishes, glazes);
The ability to adjust the amount of air depending on the viscosity of the spray paint.
• Painting speed – 15 m2 in 6 minutes;
• Spray power output – 200 W;
• Nozzle: I-Spray + 2.5 mm.
Wagner ControlPro 350M HEA
Pluses: the device is good in general
Disadvantages: Fundamentally can not work with aggressive solvents. after working with vinyl paints on solvent R-4, the suction hose was torn apart and the pump flowed.
Comment: of the minuses would like note the equipment of this unit, namely that the device comes without oil for lubrication, which, as it turned out, can be bought only on order! in general, the device is satisfied
Bought for: bought for painting It makes sense to take only to work with oil paints and water dispersion. If the paint or solvent corrodes silicone and rubber, then they are contraindicated for this device.