Painting my 914, need compressor/ paint set up Options

[Always Looking]

This will most likely be a one time deal, so I don't want to spend too much ($300 or so total?) Any suggestions? I was thinking the HF $150 compressor (but low scfm - Too low?). Also, I was thinking flat black initially. Then maybe a color later, if i decide to go crazy on the bodywork.

Any help is appreciated.

[xsboost90]

you can get a decent compressor from sears for like 200 and a nice hvlp gun from home depot for like 30-40. Make sure the comp. comes w/ a hose, stand up 25gal compressor direct drive.

[Always Looking]

I just looked at the sears 25 gallon. The stats are SCFM Delivery At 40 psi 5.6 SCFM
SCFM Delivery At 90 psi 5.1 SCFM . Isn't this too low for the guns?

ps. smilies not working so, Cheers.

[J P Stein]

Most of the "low pressure" guns run at 30 psi....I don't much like em' and went back to my HVLP & trubine compressor.
I gots 2 guns F/S for cheep. They do work, just not as well as the HVLP unit.

[914GT]

QUOTE (Always Looking @ Apr 24 2005, 02:35 PM)

I just looked at the sears 25 gallon. The stats are SCFM Delivery At 40 psi 5.6 SCFM SCFM Delivery At 90 psi 5.1 SCFM . Isn't this too low for the guns? ps. smilies not working so, Cheers.

You might get by with this small of a compressor and HVLP gun, but the compressor will run almost continuously to keep up. If you go a little bigger to about 8.5 scfm @ 90 psi you'll have more capacity and the compressor will run about half the time for typical rate you paint a car. With these small compressors it's even more important you have a water trap and filter at the end of about 30'-50' of copper line (or at least some rubber hose) before you go to your spray gun hose. Putting a filter right at the compressor does not work. Otherwise you'll be spitting water droplets out of your gun and putting fisheyes in the paint. The other thing is to make sure your hose after the filter never gets contaminated with oil. Don't ever use a hose that's been hooked up to an inline oiler to your gun. HVLP guns need a lot of volume at low pressure (around 23 psi at the gun) so go with the largest size hose to minimize pressure drop to the gun.

[J P Stein]

My High Volume Low Pressure gun uses 8 psi at 50 cfm......that is typical for a true HVLP system. Nice warm, dry air from the compressor, also. Not cheep, but I shoulda bought a really good gravity feed set-up ....back when I could write it off.

[914GT]

QUOTE (J P Stein @ Apr 24 2005, 05:55 PM)

My High Volume Low Pressure gun uses 8 psi at 50 cfm......

That's pressure at the air cap. The pressure will need to be higher at the gun inlet with the trigger pulled.

[type47]

at homeboy depot, there is a 32 gallon 5+ hp compressor with tools, including 2 paint guns for 230 then you get a 35 dollar gift card if purchased before 5/30 (i think)

[kkelly]

I don't know where everyone is getting their information, but my Sata hlvp gun requires 15.2 cfm at 29 psi. Compressors that can put out that much volume cost about $900 USD.

Kevin.

[914GT]

QUOTE (kkelly @ Apr 24 2005, 08:31 PM)

I don't know where everyone is getting their information, but my Sata hlvp gun requires 15.2 cfm at 29 psi.  Compressors that can put out that much volume cost about $900 USD. Kevin.

That's true, HVLP guns require a lot of air volume. When you're painting you are not spraying constantly. You're spraying a panel and letting up on the edges, repositioning yourself going from panel to panel, refilling the cup, mixing more paint, etc. So your compressor has time in between to bring the tank pressure back up. If you did run the gun so long that the tank pressure dropped than for sure the compressor will not keep up. When you have a small compressor and small tank you have to just give things more time. But the figures I stated earlier are about the smallest you want to work with for typical car paint jobs.

[J P Stein]

QUOTE (914GT @ Apr 24 2005, 05:27 PM)

QUOTE (J P Stein @ Apr 24 2005, 05:55 PM) My High Volume Low Pressure gun uses 8 psi at 50 cfm...... That's pressure at the air cap. The pressure will need to be higher at the gun inlet with the trigger pulled.

That is the output of the compressor. I can tune the volume down at the gun. The pressure is constant. A turbine compressor is like a vacuum cleaner running in reverse.
The hose is 3/4 in ID.

[Always Looking]

Thanks for the great info. I think I've decided to go for the el cheapo compressor and touch-up gun. I'll do the body work and primer with this set up and leave the final spray to a professional (or just leave it primer black). I've also heard that you can rent spray booths locally, so maybe I'll look into that for the future.

(IMG:http://www.914world.com/bbs2/html/emoticons/beerchug.gif)

[914GT]

QUOTE (J P Stein @ Apr 24 2005, 09:39 PM)

QUOTE (914GT @ Apr 24 2005, 05:27 PM) QUOTE (J P Stein @ Apr 24 2005, 05:55 PM) My High Volume Low Pressure gun uses 8 psi at 50 cfm...... That's pressure at the air cap. The pressure will need to be higher at the gun inlet with the trigger pulled. That is the output of the compressor. I can tune the volume down at the gun. The pressure is constant. A turbine compressor is like a vacuum cleaner running in reverse. The hose is 3/4 in ID.

Sorry, thought you were talking about a regular HVLP gun.