gravity vs. conventional siphon spray gun - Chevelle Tech
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  #1  
Old Dec 6th, 01, 11:20 AM
bhawk bhawk is offline
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I have no spray paint experience. I want to buy a gun and spay the necessary primers on my 65 resto project. I intend to leave the topcoats to professionals. What is the difference between these to guns? Also what advantages of each. Also, some guns are HVLP, while others of the same model are described as conventional. Should I go HVLP? I have a 5hp compressor, 60 gal tank, that puts out 11.4 cfm at 50 and 9.0 at 90psi, I believe.
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  #2  
Old Dec 6th, 01, 11:35 AM
sevt_chevelle sevt_chevelle is offline
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Eric
 
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Go with a hvlp gun they might be more money but well worth the added cost. They produce less over spray and have higher paint transfer rate then the conventional gun.

The main difference between them is the amount of air required to spray out the paint. The hvlp uses less air pressure then the conven, and the hvlp to me seems to break up the paint into finer particles then the conven gun.

The siphon to gravity fed is personal choice I prefer the gravity fed myself but others hate them so use what feels more comfortable to you.

Buy a good gun but buy the cheapest gun and get a name brand gun there is a difference and that is a big difference. Get a shrape or binks, sata. Those are some the big names in guns and all make a cheap gun to spray. Shrape cobalt gun is a good gun for primers for what is costs at around a 100 bucks. But what ever you do dont settle for just a cheapy at sears or harbor freight because they are 39.99 get something good.
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  #3  
Old Dec 6th, 01, 11:46 AM
normie normie is offline
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I purchased a Sharpe HVLP low volume platinum.. Best research I ever did! www.sharpe1.com they have a refurb plan and can get you a refurbed gun for half the price.. both guns I purchased were refurbs, and work exceptionally well!

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  #4  
Old Dec 6th, 01, 5:58 PM
sevt_chevelle sevt_chevelle is offline
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Eric
 
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My personal guns are a Sata nr2000 for base and clear coats. cost me around 400 bucks and in my opinion the best gun out there. For primers I have a mac tools gun which is copy of the Sata I have, paid around 140 for that.

The gun that normie has is a very nice gun, also if you go to paint supply house they know where you can buy reman guns or they might have them on hand, that would be the road to travel if I was you.
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  #5  
Old Dec 7th, 01, 11:10 AM
bhawk bhawk is offline
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thanks normie and sevt-chevelle. I was interested in the comment regard refurbs, as I got in the mail the Sharpe refurb list, reasonable prices. I see the Autobody store sells a Devillbis Finish line gun for a reasonable price, and my compressor can handle its demands. But I recall some posts where they say stay away from Finishline guns. Is there a problem with that gun that anyone knows of?
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  #6  
Old Dec 7th, 01, 2:02 PM
Big James 4XL Big James 4XL is offline
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I never got anything but orange peel or worse with the Finishline II. I gave mine away and bought a Sata Jet 90 and got much better results.

Many argue the finish line is a great gun but that was not my experience. It was probably my post over there bad mouthing that gun.

As for air consumption of the finishline I found that it would take 3 times as long(more passes) with the finish line which in effect had my compressor running more than with the Sata Jet which is a conventional gravity feed gun. That Sata gun flows out the material and keeps you moving with the gun, with the finishline you go back and forth several times to get a good coat and progress is slow. I dont have any experience with any other guns because this was my first paint job but the more expensive devilbiss guns are probably a good choice as well as the Sharp platinum.

Also the finishline has more parts and some are plastic. Its a pain to clean and I ruined one tip and baffle with gun cleaner. The only thing I liked about it was the cup liners.

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  #7  
Old Dec 7th, 01, 2:42 PM
vettefella vettefella is offline
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The guys have covered just about everything. I have a Sata 2000 like Sevt and it's a good'un. My favorites are Sharpe Mod 70 &75. They are old and aren't hvlp. Old habits are hard to break I guess. My absolute favorite is a small Iwata siphon feed that I got in Japan years ago.

I have a couple of gravity feed guns besides the Sata, but after years of using siphon feeds, I prefer those.
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  #8  
Old Dec 7th, 01, 2:43 PM
vettefella vettefella is offline
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The guys have covered just about everything. I have a Sata 2000 like Sevt and it's a good'un. My favorites are Sharpe Mod 70 &75. They are old and aren't hvlp. Old habits are hard to break I guess. My absolute favorite is a small Iwata siphon feed that I got in Japan years ago.

I have a couple of gravity feed guns besides the Sata, but after years of using siphon feeds, I prefer those.
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