Spray Gun question

[Razor]

can I use a gravity fed spray gun on conventional air compressor like 2.5HP with 40ltr tank to spray paint acyrlic base paint?

I heard most HVLP system uses gravity fed guns and I know you have to use a special compressor for it high CFM

just wondering if theres a version for conventional air compressor

Cheers!

[EScanlon]

AFAIK each type is specific to it's compressor, IOW you can't interchange them.

Enrique

[Razor]

whats AFAIK and IOW????

i've read something about conventional air compressor using Gravity Fed Spray guns

and ive read on some books as well that you can mix and match

and also that you cant

so very confuse which one is right

[EScanlon]

ouch!

As Far As I Know, each type is specific to it's compressor, In Other Words you can't interchange them.

The High Volume Low Pressure gun counts on a LOT of air moving through the gun, into which the paint is metered into the air stream. I'm not sure on how the paint is atomized, but it is dependent on the VOLUME of air.

A Low Volume High Pressure depends on the pressure behind the nozzle to venturi the paint out and to both propel and direct the shape of the fanned spray. Below a certain pressure, the gun will "spit" and really give you a bad case of "orange-peel" that will look more like "cantaloupe peel".

The air source for an HVLP gun is basically a FAN that moves a LOT of air.

The compressor for an LVHP is a standard air compressor.

If I have any of this wrong, please post a correction.

Enrique

[Corganx33]

http://www.lambolounge.com/Body/Paint/paint.asp

go there and read, a lot of good information. HP and PSI aren't as important as SCFM to an HVLP gun. Hows that for some acronyms

[Gophman]

While I have never used a gravity fed gun, I believe it is more a function of how much air the compressor can put out, SCFM rather than what type of compressor it is.

The HLVP gun will actually operate on less pressure than LVHP.

My HVLP gun that I use to spray lacquer on furniture has the cup pressurized and runs about 25-35 lbs of air from the compressor

JMHO