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Minimum compressor stats for finishing guitars
Posted: Tue May 10, 2011 10:00 pm
by darren
I have a compressor but don't know if its suitable for spraying (it was a gift several years ago).
this is all I could find online for it:
http://www.unifireusa.com/retail1/item. ... =4940-0906
5 Gal, 115 max psi, 4.3 scfm @ 40psi / 3.3 scfm @ 90psi.
Good enough? Not good enough? All I've ever used it for is airing up tires, and its been in storage for several years.
Re: Minimum compressor stats for finishing guitars
Posted: Wed May 11, 2011 9:24 am
by jstream
darren wrote:I have a compressor but don't know if its suitable for spraying (it was a gift several years ago).
this is all I could find online for it:
http://www.unifireusa.com/retail1/item. ... =4940-0906
5 Gal, 115 max psi, 4.3 scfm @ 40psi / 3.3 scfm @ 90psi.
Good enough? Not good enough? All I've ever used it for is airing up tires, and its been in storage for several years.
That compressor looks to be just fine as long as you match the gun to it's output. The only numbers that really matter are the cfm numbers. 4.3 is kind of low for most air tools, but you can find some really good spray guns that will work with it. I just got this one
http://www.spraygunworld.com/products/A ... 20Gun.html which only requires 3 cfm@40 and is considered one of the best available for low-power compressors. You wouldn't want to paint a car with it, but it will be just fine for smaller projects like guitars.
Re: Minimum compressor stats for finishing guitars
Posted: Wed May 11, 2011 9:48 am
by kencierp
You must match the requirements of the spray gun you plan to use with the specs of the compressor you plan to use. You also must have an oil trap and water trap on the main line and a water trap at the spray gun.
Re: Minimum compressor stats for finishing guitars
Posted: Wed May 11, 2011 10:49 am
by darren
Thanks for the replies - I haven't done any research on spraying equipment so laying out the basics is very helpful.
Re: Minimum compressor stats for finishing guitars
Posted: Wed May 11, 2011 12:12 pm
by jstream
check out the site I linked above. If you have questions about what guns might work with your compressor, or features you aren't sure about, you can email them and they're pretty good about answering.
Re: Minimum compressor stats for finishing guitars
Posted: Wed May 11, 2011 4:28 pm
by Ben-Had
kencierp wrote:You must match the requirements of the spray gun you plan to use with the specs of the compressor you plan to use. You also must have an oil trap and water trap on the main line and a water trap at the spray gun.
Ken, I'm interested in what type you would suggest and approx cost. Thanks.
"You also must have an oil trap and water trap on the main line"
Tim B
Re: Minimum compressor stats for finishing guitars
Posted: Wed May 11, 2011 5:15 pm
by tippie53
Like Ken said you need that water separator. With todays guns you can do alot with a little . I switched to a turbine so I don't have the water issue . My favorite finish gun is what the auto dealers call a detail gun Small and very controllable .
I will admit that I do farm out most of my finish work now . I just don't have the space.
Re: Minimum compressor stats for finishing guitars
Posted: Wed May 11, 2011 5:44 pm
by kencierp
OK I had professional training (years ago) and it was drilled in that your equipment must be in tip/top shape and super clean. And that makes perfect sense -- in more recent years I have become more profient at surface prep and top coat leveling. The truth is, I now use rattle cans. Forget all that clean-up !! Time is money and as heard here before, "its not what or how you put it on its what you leave on that's important." So I really don't have any recommendation -- but a gravity feed HVLP detail gun will work nicely.
Re: Minimum compressor stats for finishing guitars
Posted: Fri May 20, 2011 9:35 pm
by Guitar Hack
Do paint sprayers have to use air compressors? I have a dewalt airless paint sprayer I have been using. Is the air version better?
Re: Minimum compressor stats for finishing guitars
Posted: Sat May 21, 2011 11:49 am
by tippie53
while they say airless ,it still uses pressure to send out a spray pattern I switched to a turbine sprayer . They work great and do not usually have water issues and most HVLP guns will work with them .