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joesquid
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« on: June 02, 2005, 09:55:30 pm » |
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Hey guys and gals,
I've got a Craftsman 4hp, 13 gallon, 125 psi air compressor and intend to paint my coke machine with a small automotive detail spray gun. Will my compressor provide enough air volume to properly atomize the paint? What pressure should I maintain?
Thanks!!
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Eric "Joe Squid" Johnson
1955 Vendo 23 - awaiting restoration
1959 Westinghouse WC-44SK - awaiting parts
1967 Cavalier CS-64G - functional in house
1969 Vendo 63 - in restoration
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loman4ec
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« Reply #1 on: June 02, 2005, 10:03:07 pm » |
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I am sorry joe but the air tank is way too small. I have a 32 gallon and it isn't enough to do the job. You are going to need a compressor that will be able to deliver constant air flow over a long enough period to paint the machine.
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joesquid
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« Reply #2 on: June 02, 2005, 10:09:35 pm » |
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Josh,
Thanks for the info. Very disappointing but glad I found out before buying paint. I was really psyched about doing my own paint too. So what size compressor do I need, one of those 60 gallon 240vac bohemoths?
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Eric "Joe Squid" Johnson
1955 Vendo 23 - awaiting restoration
1959 Westinghouse WC-44SK - awaiting parts
1967 Cavalier CS-64G - functional in house
1969 Vendo 63 - in restoration
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loman4ec
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« Reply #3 on: June 02, 2005, 11:25:58 pm » |
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Yes you will need something large like that. Now I have heard of some of the really expensive HVLP guns having less air consumption but I don't know if yours is enough for that. The problem is lack of air supply. In mine I can only run my DA sander for less than a min or two before it needs to fill the tank up.
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BryanH
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« Reply #4 on: June 02, 2005, 11:50:11 pm » |
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Eric, I have a 33gal / 6HP from Sears. So far, its has been capable of keeping up with consumption of my HVLP gun. The compressor is rated for 8.6 SCFM at 40psi and the gun only needs 7.0 SCFM. The compressor does run short on air when using the sander.
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Thanks, Bryan
Cavalier USS-96: unrestored, working on the back patio
CV VUB/C 8-91: a fantasy restoration?
GE Cooler: in pieces, my next project
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joesquid
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« Reply #5 on: June 03, 2005, 06:40:23 am » |
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What about the 9 gallon RIDGID compressor I found at Home Depot? 11.8/10.3 SCFM @ 40/90 psi, gas operated. I like it because it's portable and doesn't require a 240 VAC power source. Yeah, $750 price tag but I just bought a $1000 dining room table for my wife AND my birthday coincides with Father's Day this year soooooo..... 
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Eric "Joe Squid" Johnson
1955 Vendo 23 - awaiting restoration
1959 Westinghouse WC-44SK - awaiting parts
1967 Cavalier CS-64G - functional in house
1969 Vendo 63 - in restoration
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joesquid
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« Reply #6 on: June 03, 2005, 07:11:22 am » |
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Here's a link to this compressor
RIDGID GP90135
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Eric "Joe Squid" Johnson
1955 Vendo 23 - awaiting restoration
1959 Westinghouse WC-44SK - awaiting parts
1967 Cavalier CS-64G - functional in house
1969 Vendo 63 - in restoration
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loman4ec
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« Reply #7 on: June 03, 2005, 10:27:20 am » |
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I am not an expert at this but I think the problen lies with supply of air. An air gun would use up the air in those tiny tanks in a matter of seconds. As stated above even our 33 gallon tanks can barly keep up. So if ours work for painting why not get a craftsman like ours. They are 110v and cost under $400 from sears and are on wheels.
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BryanH
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« Reply #8 on: June 03, 2005, 11:23:37 am » |
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Eric - despite the fact that the volume #'s say that compressor should work, a 9 gallon tank seems small. I'd have to agree with Josh, but I'm no expert. If you've got the bills to drop on the Rigid, then I'd try to find someone knowledgeable about painting with these things and ask them. Then cross reference it with an unbiased decision. I've found this DIY forum or this ask the expert site to be helpful for these kinds of opinions.
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Thanks, Bryan
Cavalier USS-96: unrestored, working on the back patio
CV VUB/C 8-91: a fantasy restoration?
GE Cooler: in pieces, my next project
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MoonDawg
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« Reply #9 on: June 03, 2005, 12:30:08 pm » |
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Eric. Ask around, sometimes body shops will rent their spray booth by the hour. You normally would spray on a Saturday afternoon, and pick up your stuff Monday AM
That way you could decide how much equipment you want to buy after your first paint job.
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Glen
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