When the trigger is released, the airless spray gun spits. With high pressure airless paint systems, nozzle extensions, extension coils and nozzle filters can also cause saliva or fluid to flow between the gun and nozzle after the gun has been discharged due to paint decompression trapped.
Spray guns spit when air outside the air surface is introduced into the liquid. A bulk material nozzle does not fit properly into the spray gun tip and allows air to enter the material feed, which produces saliva.
There are two basic causes of saliva or non-atomized paint droplets. The former are defects or wear on the spray tip or gun needle. This paint that passes through the tip is applied to the surface with the spray and is a spit or block of paint you see.
Fill the paint can with airbrush cleaner and spray it on a paper towel until the liquid has spread. Some airbrush manufacturers also recommend leaving the paint can full of detergent between uses and at the end of each day to prevent the residual paint inside from drying out and clogging the gun.
If you set the air pressure to approximately, most HVLP spray guns use 1014 scfm at 40 psi. It is the volume of air pressure per cubic foot.
Latex paint They are extremely viscous. So, if you spray them with a portable HVLP or small airless sprayer, you’ll need to dilute them. You should dilute the latex paint by at least 10%. Another frequently used minimum ratio is 1/4 C of water per 1 liter of paint.
You use 40% more paint with an airless sprayer than with a paintbrush or roller. This means that 40% of the paint you splash ends up somewhere other than the paint surface. Poor painting techniques can increase this ratio to 50/50.
Gun does not spray If the gun does not spray at all, the problem is probably due to a blocked opening in the air valve or hose. Make sure the air pressure and fluid are set correctly and check the air hose to make sure it’s connected properly.
It should be diluted or diluted with water for a better consistency. Thinning the paint is very important when you want to apply a thin spray of paint or when using a spray gun or nozzle. Materials that are too thick can have difficulty passing through the spray gun valve.
Bubbles in the gravity cup or bottle This is due to the air pressure being applied to the paint container. This can be due to a number of causes, the most common of which are an air leak in the cap / air nozzle, a clogged drying nozzle / nozzles, a loose air intake / head, or a loose air nozzle / nozzle. split airbrush.
Spraying spider formation This is mainly caused when the paint is too fine, too fine or runny, but it can also be due to too much paint being applied to a non-porous surface or too high air pressure. Color too fine Add color to the mixture or reduce the air pressure.
Provide a ventilation opening in the lid of the siphon bottle or in the lid of the paint container. Otherwise, a vacuum will be created that will prevent the paint from flowing. With a siphon airbrush, this can be caused by a heavily leaking needle seal or a leaking needle pad. To check this, turn the airbrush over and run the water into the paint inlet.
Iwata is a favorite choice. It has gravity feed and double action. Both features suitable for beginners, recommended by professionals, but not just for airbrush beginners. Professionals also use advanced Iwata templates.