Before you start spray painting, it's vital that you know how to hold and operate your Paint Spray Gun.
Depending on the tip size, you may need to hold the gun 30cm away from the surface. However, for large tips, you may need to move the spray gun further. After you have aimed the spray paintgun, you should move in a steady horizontal motion. Make sure that you release the trigger when you're ready to stop moving the gun.
Airless spray guns are faster
An airless paint spray gun is a hand-held device that slides into a hole in front of the paint can. It is typically labeled with a three-digit number, which is sometimes part of a model number. The first digit, doubled, indicates the width of the spray fan when held 12 inches from the surface. For example, the 415 tip creates an eight-inch fan pattern, while the 515 tip creates a 10-inch fan. The next two digits are the diameter of the hole in the tip, which varies depending on the type of liquid being sprayed. The smaller the hole, the better the quality of the spray.
A high-efficiency airless paint sprayer has a softer pressure and improved tip design to decrease overspray by half. It is powered by a 0.6-horsepower motor and sprays unthinned paint from a pail at a rate of 0.33 gallons per minute. Airless paint spray guns have durable metal spray guns and long hoses for increased reach.
They can infuse paint under skin
While painting contractors use protective equipment, you should also consider how your skin reacts to paint spray. Most people do not realize how easily paint can infuse themselves. While this can be a problem, it can also be prevented with the right techniques and precautions. For example, you can apply baby lotion to the affected area. You should make sure to apply it with as little pressure as possible to avoid spreading it to other areas. After the lotion has soaked into the skin, you can repeat the process if the paint still remains.
They are prone to clogging
The most common reason why Paint Spray Guns clog is because of solidified paint or other adhesives. A clogged spray gun can halt production. Below are seven ways to prevent clogging and maintain optimal performance of your paint spray gun. These tips apply to both hand held and fixed automatic spray guns. Read on to learn about the best practices for both types of spray guns. When spraying paint or adhesive, be sure to maintain the air cap regularly and remove any cleaning solution from it.
If the paint gun is prone to clogging, check the inlet screen and the suction tube. If these aren't properly connected, the inlet valve check fault may be stuck. Use the eraser end of a pencil to gently nudge the valve if necessary. If both of these steps fail to restore proper suction, you can apply cleaning solvent. Be sure to apply the solvent before the paint has dried. Otherwise, you may damage the paint gun or the paint.
They are not suited for high viscosity fluids
High-viscosity paints can be difficult to apply with a spray gun. This is due to the fact that high-viscosity paints have a low shear rate, which makes them ideal for stirrability and thin coatings. A high-shear rate is characterized by a rapid decrease in viscosity. Rotational viscometers can show the shear rate as the speed changes.
The type of nozzle bore should match the viscosity of the material being sprayed. The nozzle bore should be large enough to allow larger components to pass through. This is particularly important for coatings containing high mineral content, such as silicate paint. High-viscosity fluids such as paints cannot be sprayed with standard-output nozzles.
Airless spray guns are best for spraying latex-style paints and varnish. However, high-viscosity paints are difficult to spray with HVLP guns. Airless spray guns are not suited for high-viscosity paints, and they tend to produce thick tails on both sides of the spray pattern. Although they are a good choice for beginners and for large-volume painting projects, airless sprayers are not suited for high-end projects.