What do you need for HVLP?

HVLP guns require plenty of air, so you may have to buy a larger compressor. The manufacturer of the gun shown recommends a minimum of a 3-hp compressor with a 20-gallon tank. Although this is an added investment, you can use the compressor to power other tools.

What size HVLP do I need?

Basecoats should be sprayed with a 1.4 to 1.6 nozzle. Clearcoats should be sprayed with a 1.3 to 1.7 nozzle. Sealers and single-stage urethanes should be sprayed with 1.4 to 1.6 nozzles.

What is the minimum CFM for spray painting?

When it comes to spray guns and air compressors for painting, the cubic feet per minute is the critical factor to consider, it is also what you typically pay for most when buying an air compressor. For a quality HVLP Spray Gun you can often need up to 20 CFM of air.

What size air compressor do I need for a paint gun?

It’s recommended to pick yourself up a 60 Gal tank with a 5-6 HP compressor that put’s out enough CFM that will supply your spray gun. Look for CFM in the ranges of 14-18 at 90PSI.

What should the pressure be on a HVLP spray gun?

In a typical HVLP design, the regulated 50 psi (345 kPa) of air supplied to an HVLP spray gun will be reduced to a pressure of no more than 10 psi (68 kPa) as measured at the air cap. In a conventional air spray gun, air cap pressure is restricted only by compressor capacity, regulator pressure and normal pressure drop conditions.

Can a HVLP gun be used as a Class A finish?

A new vehicle’s finish is classified as a Class A finish. Depending on a coating’s sprayability, a HVLP gun can sometimes fall short of a Class A finish. However, a compliant gun is more likely to provide a consistent Class A finish over a broader range of coatings with an increase in over spray.

How big of a hose do you need for HVLP spray?

HVLP spray depends on sufficient air pressure and volume at the air cap for optimum performance. All of the above sources of pressure loss can prevent enough air from getting to the spray gun to generate the necessary air cap pressure. In general, avoid using 1/4 inch hose for all spray guns.

Do you need a compressor for a HVLP gun?

First things first — Air Supply. Check your gun — If you have a gun that requires 15 CFM you will need a compressor and plumbing that will produce that at a very minimum. There are HVLP guns that need as little as 7.5 CFM so you can get good results even from a smaller compressor. Remember, that’s 15 CFM at the GUN.