Spray Guns for a 33gal. 1.6HP Oil-less Compressor

[Hobbienut]

My first forum question: What type of spray guns can I use to spray motorcycle tins only, no car bodies (unless it's a Mini), with a 33gal. 1.6HP compressor?

I plan to get a 33gal. 1.6HP compressor, instead of a 60gal, 220V compressor, so I dont have to dicker with a new receptacle in my garage. I can see from reading forums that HVLP guns will not work with a compressor like this (not enough CFM's).

What about conventional, bottom feed guns, like a Devilbiss FLG-694-115 or a FLG-695-113?

Thanks,
Matt

[Shiva]

EHH. go back to the HVLP gun.. it wants-guessing here.. 6CFM at 45PSI for example..

what will YOUR compressor put out CONSISTANTLY. xCFM at 90 PSI for example.

or whatever yours is rated at.. 1.6 HP is a might small, but it depends on the CFM output.. the HIGHER the pressure, the less the output IMO for a given HP.
If your compressor was capable of running (I got one a LOT smaller in fact) a CONSTANT 45 psi output at a reasonable PSI, you might get by.

the next thing is go back and look at HVLP guns.. this one wants 45 PSI, this other might be happy at 30PSI.. all depends.

[Hobbienut]

The 1.6HP - 2HP compressors only put out about 5.5CFM's @40psi. That's not enough for a HVLP gun, which are normally rated at 11+CFM's @30-40 psi.

I read somewhere that conventional guns lay down a better layer than the HVLP guns, but you have to deal with more overspray (higher psi). Overspray I can deal with. A bad paint job I can't.

Whre can I find a HVLP gun that's rated at 6CFM @ 45psi? At that pressure, it's not longer a HVLP gun.

Matt

[AndyW]

Have a look at ones termed as mini hvlp or lvlp.

[Hobbienut]

Thanks Draggie!

The only "mini" spray gun I've heard people talking about is the Sata Minijet IV, but even that requires high CFM's.

Are there any good mini HVLP guns, or LVLP guns out there comparable to Iwata, Sata, or DeVilbiss brands? I'm not too familiar with brand reputation on spray guns, as I am with airbrushes. Hell, Even these three may have guns that will work.


I'll start googling...

[Shiva]

http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=92541

HIGH TRANSFER EFFICIENCY
Designed and engineered by atomization experts at DeVilbiss to produce uniform, well-atomized spray patterns.

* Rugged all metal construction
* Replaceable, threaded hard-coated aluminum baffle for economical servicing- no need to replace gun if body threads wear out
* Pressure reduces to 10 PSI at air cap


Shipping weight: 3 lbs.
Includes 1.5 mm fluid tip, 1.8 mm fluid tip, #3 HVLP air cap, gun hook, spray lube, fluid filter, cup liner and true one liter aluminum paint cup. Air requirements: 13 CFM @ 23 PSI, Air inlet: 1/4'' NPS;

FinishLine by DeVilbiss# FLG-691-315
ITEM 92541-1VGA

$159.99

[Shiva]

http://www.grizzly.com/products/Mini-HVLP-Spray-Gun-Stainless-Steel-Cup/H7670

http://www.grizzly.com/products/Deluxe-Mini-HVLP-Spray-Gun/H7673

http://www.grizzly.com/products/HVLP-Deluxe-Spray-Gun-with-Metal-Cup/H5529

http://www.grizzly.com/products/Mini-Spray-Gun-w-0-8mm-Tip-Stainless-Cup/H8117

[Hobbienut]

...Air requirements: 13 CFM @ 23 PSI...



You see, there's that high CFM requirement again.

Is the Grizzly a good gun?

Matt

[AndyW]

On a gravity feed you are probably looking at something no bigger than a 1.0 nozzle, I have 2 unbranded guns, a 0.8 mini lvlp requires 4 cfm, the 1.0 mini hvlp requires 5 - 6 cfm.

More wastage but may be better with a syphon feed.

[Shiva]

You see, there's that high CFM requirement again.

Is the Grizzly a good gun?

Matt

but look at the PRESSURE needed.. how many PSI does your compressor put out at what CFM?
23 PSI is TINY, air needs wise.. IIRR double the pressure and half the volume?
double AGAIN, as we are up to 95 psi..
again, IIRR, at 95 psi you would need 6 CFM or so?

[ARTSPRAYJ4J]

look at RP [reduced pressure] guns these run at higher pressure than hvlp but use less air. the Sata rp uses 10.5 cfm@35psi compared to a devilbiss gti which can use around 18 cfm@29psi ,if you want a good gun that uses far less air then the Sata minijets use around 4 cfm and with the 1.2 sr set up [standard] they are capable of clearing the side of a small car .half size guns use less air, the Sharpe finnex FX100 is a good cheap gun that performs nearly as well as the far more expensive Sata minijet

i take it you arent doing full repaints or you would be buying a far bigger compressor 1.6 hp is small even a good 3hp unit wont give more than 14 cfm on a good day with the wind behind it lol


and remember its not just a case of matching the cfm of the tool to the compresser exactly ,the compressor realy needs to give twice the cfm that the tool needs or it will be running constantly to keep up and pressures will drop to thier minimum? cfm @ ? psi ie if your tool requires 10 cfm @ 35 psi and your compressor gives 10 cfm @ 30psi it not going to work


for all my bike painting i use my minijet, sometimes with the standard 1.2 sometimes with a 1.0 set up which is much leaner with the paint either way these guns will use far less air and above all far less paint than a full size gun saveing lots of money they also give a far superior finnish than a full size gun saving on polishing times if you actualy need to polish the finnish as they are superb guns when it comes to laying clearcoat down the Sharps gun aint bad either

paul

[Hobbienut]

Thanks everybody for you inputs. I will look at some of the guns mentioned.

Matt