Building a paint booth

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(Air compressor)
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==Air compressor==
 
==Air compressor==
 
HVLP guns need air. The 1/4" quick couplers do not flow air well. The 3/8" couplers flow twice the air. The problem with the smaller coupler is that you start out with higher pressure and since the couplers can not flow the air you get a drop off of pressure. You have to change your rate of movement to compensate and that is not easy to figure out when you are just starting out.
 
HVLP guns need air. The 1/4" quick couplers do not flow air well. The 3/8" couplers flow twice the air. The problem with the smaller coupler is that you start out with higher pressure and since the couplers can not flow the air you get a drop off of pressure. You have to change your rate of movement to compensate and that is not easy to figure out when you are just starting out.
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I solved my compressor issue by using 2 air compressors (110V).
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The first one was 3hp, 10 gallon tank that put out 7.2 CFM @ 40 PSI and the second one was 2hp, 10 gallon tank that put out about 4 CFM @ 40 PSI.
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I ran them on different circuits so they would not trip the AC.
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Ran a 20 foot hose from each one (to let the air temp cool down and water condense out) and into a Y connector at my high volume water trap http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=98904.
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  Out of the water trap was my control regulator and 50 foot of hose.
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I never ran out of air with my gun which needs 9.5 cfm @ 29psi. On long shoots I could hear the smaller air compressor turn on to keep up with the air demand but it normally only ran the larger compressor.
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The beauty of this is I did not have to deal with supplying a 220V circuit for a larger system.
  
 
==Ventilation==
 
==Ventilation==

Revision as of 17:43, 31 August 2009

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