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Old 06-23-2006, 07:29 PM
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HVLP spraying with CO2 rather than air

Do modern paints require that they be sprayed with air, or would CO2 also work? I only ask because getting a cylinder of CO2 refilled is cheap, the output would be dry and cool, and there's definitely enough available CFM. Has anybody tried this?

CO2 would be a great alternative to a big compressor for people like me if it works.

Edit: how about Nitrogen?

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Old 06-23-2006, 07:42 PM
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Either would be fine for an airbrush.
But for a hvlp full size paint gun. Not much.
I think your confusing CFM with PSI.
Volume vs. Pressure.
It would work with a convintional gun for a short while but those regulators will not pass enough CFM to satisify a full blown hvlp gun for very long IMO.
Unless you got a railroad car size tank.
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Old 06-23-2006, 08:18 PM
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Quote:
Originally Posted by Bee4Me
Either would be fine for an airbrush.
But for a hvlp full size paint gun. Not much.
I think your confusing CFM with PSI.
Volume vs. Pressure.
It would work with a convintional gun for a short while but those regulators will not pass enough CFM to satisify a full blown hvlp gun for very long IMO.
Unless you got a railroad car size tank.
I didn't confuse flow vs pressure, but I did forget about restriction at the regulator. That looks like it would probably be the biggest problem.
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Old 06-23-2006, 08:22 PM
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Forget the regulator restriction problem, I just read that one pound of CO2 in liquid form equates to 7 cubic feet. That means a 20 pound bottle would be gone in a couple of seconds.
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Old 06-23-2006, 10:58 PM
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Edit--,made a mistake,pardon me.
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