The term overspray amongst amateur- and professional pa […]
The term overspray amongst amateur- and professional painters has sometimes trigger sprayer been loosely defined as “any time you are getting paint onto an area you didn’t intend to put there in the first place”. However, not all over-spraying is the same thing, and the causes are usually quite different, requiring alternative solutions.To reduce overspray, we will look at the correct spraying technique, selecting the right equipment and your choice of optional accessories that will make airless paint spraying easier and can reduce overspray Plastic Trigger Sprayer factory in the process.Airless sprayer manufacturers have constructed the spray tip, tip holder and gun to operate at an optimal distance and angle from the work surface.
When pulling the trigger, move the gun at the same time. Move your hand at the same pace you would use when closing a curtain. Use your feet and move your body to maintain the spraying distance and angle of the spray gun to the surface. The use of extensions and swivel joints will assist you in reaching wider surface areas and getting around obstacles.Optimal spraying pressure is essential to reduce overspray, so that there is not an excess of paint particles being released into the air. Of course, airless paint spraying requires the atomization action to produce the spray fan and an even area coverage, however, when spraying at very high pressures, a fine particle mist will quickly develop and fall on surrounding surfaces.
Finding the right spray pressure for your job requirement is a combination of knowing what factors influence spray pressure and what to look out for when spraying. When the pressure is too low, your spray pattern is uneven, with “fingers” forming within the spray pattern and thin segmented bands forming at the top and bottom when spraying in a horizontal motion. When the pressure is too high, material is being forced out of the tip hole at a much greater force than required to get the job done.Temperature of the material. Heating a material raises its viscosity, meaning it requires less pressure for the same spray fan pattern result.Your spray pattern looks segmented with a thin band at the top and bottom.
Streaking or fingers are present within the spray pattern. The coat looks too thin, and your immediate instinct is wanting to paint over it again.At an optimal pressure setting, the spray fan pattern has uniform coverage with no visible fingers or segments at the top or bottom.There is quite some contention amongst professionals painters regarding which spray tips produce the most- and least overspray. There isn’t a “one-size-fits-all” approach as your spray tip will depend on your gun setup, spraying process and material being used. You may also be limited to your choice of spray tip if the it is a niche job e.g. road markings or heavy-duty materials.