Readers ask: How To Use A Low Pressure Paint Sprayer?

What pressure should I set my paint sprayer?

We recommend painting between 25-30 psi while the trigger is pulled. You may see some paint tech sheets which refer to a painting air pressure of 8-10. Don’t set the spray gun to those as this measurement is referring to the air cap pressure right where the paint comes out.

How does a low pressure spray gun work?

How Does HVLP Spray Guns Actually Work. The paint container (being either gravity feed or suction feed) is placed under pressure forcing the paint material through the nozzle. A large volume of low pressure are is then intersected with the mainstream causing the atomization process.

What PSI should I spray clear coat?

When spraying base coat clear coat systems, you want to spray at 26-29 PSI. You measure this PSI by pulling the trigger and letting air flow through the tip of your gun with your dial or digital readout saying 26-29 PSI.

What is a high volume low pressure spray gun?

HVLP is an acronym for High Volume Low Pressure which means a high volume of air (10-25 CFM) at a low air pressure (10 PSI/0.7 Bar or less). Atomization is achieved by the volume of air not by high air pressure which reduces the forward velocity, thus creating a softer spray.

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Are LVLP spray guns any good?

LVLP spray guns are better than HVLP spray guns because they produce few defects. This is because air bubbles can be produced in high volume which can cause a lot of defects. The LVLP uses low pressure and a thin nozzle which allows a low volume of paint to be pushed out of the gun.

How many coats of clear is too much?

Plan for 2-4 coats. When applying multiple coats (recommended), it’s a good idea to apply the first coat lightly. Doing so helps prevent shrinkage, which causes cracks. Additional coats should be full and wet.

Can I spray clear coat over clear coat?

Can you paint over clear coat directly? No. Like I said, you can paint over clear coat but you’ll need to sand off a layer of the clear coat before applying paint. If you just spray base coat over clear coat, the paint will not adhere to the surface, which will only result in an ugly finish.

Is HVLP better than airless?

Vertical spraying: An HVLP is better for vertical spraying small projects than an airless, especially if you’re new to spraying. You’re far less likely to get paint runs because you’re spraying at a much lower pressure. An airless cranked up to 2,000 PSI throws a lot of paint onto the surface quickly.

Do you have to thin paint for a HVLP sprayer?

Latex paint is the most demanding when it comes to straining. They’re extremely viscous, so whenever you spray them with a handheld, HVLP, or small airless sprayer, you need to thin them down.

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How much CFM do I need for a spray gun?

While some air spray guns have a rating of lower than 10 CFM, we’d recommend your compressor CFM for spray painting is at least 12 CFM.

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