Re: HVLP's

[Doug Ahern <D170A833@xxxxxxxxxxxxxxxxxxx>]

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here's a link to a good write up:

http://www.dodgepowerwagon.com/glovebox/hvlp.html


there a lot of HVLP vendors.  you can even buy a cheapo HVLP @ Harbor
Freight,  The Home Depot, or on ebay.    like anything you get what you
pay for....  of course, as a hobbiest, its probably premature to dive
into a highend Sata gun.

HVLP will put more paint on your parts and pieces, by far, compared to
a conventional spray gun.   That money can add up when you consider
inexpensive single stage auto paint, like Omni, can run ya $45-65/quart
once you add in reducer, hardener, & cleanup...

the problem with HVLP (and if you have a honker compressor, its not
a problem,,,) is that most HVLP guns have a massive SCFM (or CFM) 
rating that suck down a compressor.   true, the PSI requirement is low,
but sometimes these guns need 13-15 SCFM @ 30psi, or at 40 psi.   I've
seen some that have a 10CFM requirement.  There are also some
conventional spray guns made by Sharpe and Devilbiss that are "near
HVLP" standards, but exceed 15 psi @ the nozzle so they can't be labeled
HVLP.  they have ow-overspray characteristics, like HVLP,  but
have lower CFM requirements, like 8-9CFM @ 30 PSI.

AFAIK, turbine HVLPs are great for woodworking but don't seem to be
popular in the auto paint world.  I think I've read, or spoken with
sales reps that have explained that turbine HVLP produces too hot of an
compressed air for auto paint.  I dunno... can any paint experts
expand?  or call BS?

Doug Ahern

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