Air pressure is the amount of force per unit area applied to the surface. When you talk about air pressure for an LVLP spray gun, you need to understand that this is a measurement of force applied by air molecules on a surface.
There are two major components that affect the magnitude of an applied force and they are area and volume. It is important to know that volume can apply force in two ways;
- External forces such as gravity
- Internal forces like the weight of fluids in a container
What Determines Air Pressure for LVLP Spray Guns?
When you talk about air pressure for LVLP spray guns, it is important to understand the basics.
The air pressure required to operate an LVLP spray gun depends on the type of paint being used. Higher air pressure is required for high-density paints but lower pressure can be used for latex paints.
While Spraying with an LVLP spray gun, it is very important that the nozzle produces an even line with no excessive or overspray or under the spray.
What Air Pressure for The LVLP Spray Gun?
Air pressure for LVLP spray guns is typically regulated from around 40-50 PSI, with the volume of the material being dispersed at a rate of around 1.5 to 2.0 liters per minute.
The exact PSI depends on the type of paint, as well as the factors like the viscosity and dry time.
What’s The Exact PSI at The Tip of A Nozzle of Your LVLP Spray Gun?
It depends on what kind of paint you’re using and also on which type of gun you’re using.
The PSI at the tip of an LVLP spray gun nozzle should be 26-29. The PSI will affect how much paint will come out of the spray gun and also how much distance it can cover.
Further, at 27-28 PSI, you should be able to cover about 4 to 6 inches with one paint stroke.
You might be able to go as low as 25-26 for less coverage or higher as 30+ for more coverage or quicker application time.
How To Know What’s Exact PSI for The LVLP Spray Gun?
If you want to know the exact PSI for your LVLP spray gun, you should squeeze the trigger. It will not only determine the quality of your paint job but also will do with the air pressure at the tip of your sprayer.
Different types of spray guns have different PSI requirements and knowing these can help you avoid future issues with poor-quality painting jobs.
Spraying Paint With LVLP Spray Gun
The pressure of your LVLP paint spray gun is one of the most important factors when it comes to spraying paint.
The air pressure varies depending on what type of gun you are using, the type and brand of paint, and the distance from which you are spraying.
For example, if you want to spray a wall for long periods then your gun will need a higher PSI than if you were spraying small objects like furniture.
The incorrect PSI can lead to dry spots in the paint coating or damage your spray gun.
If you want to know the PSI Setting HVLP and LVLP Spray gun then this video will help you a lot;
It is important to have a high enough PSI so that the paint can shoot out with more force and covers more area with less effort.
However, it is also important not to set the PSI too high because this will cause an excessive amount of overspray and wastage of paint.