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Old 07-06-2010, 08:57 PM
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DeVilbiss JGA 502 question

Hello everyone! So i am getting ready to paint my jeep tomorrow(i know not a hotrod but i have done hotrods in the past) This is my very first time actually painting on my own On my test panel today i got alot of orange peel...

here are the specs of what i am working with:

-DeVilbiss JGA 502 standard fluid tip(AV15EX), needle JGA 402 D-EX and cap (30)
-gun psi at 55
-4hp compressor 6.5 scfm at 40 psi 5.1scfm at 90 psi
-BASF LIMCO 1 stage black paint
-BASF LIMCO LR13 paint thinner
-BASF LIMCO LHS hardner
-panels random orbital sanded down to 320
-temp i am working in is 100*
-mixture is 8:4:1


Any ideas on why it is so orange peely? i attached pictures. The entire vehicle is sanded down and prepped for paint. But i dont wanna ruin the entire thing...
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Old 07-07-2010, 09:28 AM
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orange peel is the inaccurate atomization of the paint product, and lack of following the contour since this was a spray out lets talk atomization, play with your PSI on your gun a bit turnin it down some may help or better yet if you got a few bucks to play with even a wal mart or parts store HVLP gun will lay down flat with the right prep and paint work. HVLP guns use less air and waste less paint hense HVLP (High Volume Low Pressure) and are much nicer particularly if your layin down on the hood you have to be extra caoutious of that big tank hangin below your gun on you DeVelbiss. also with the heat your gettin just looked back at your post might try a little less hardener and possibly a different hardener they have have hardeners that harden in shorter and longer amounts of time to give you a chance to work with it and with the heat you have could be the cause.
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Old 07-07-2010, 11:28 AM
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Thank you for your reply. The gun i have is an amazing gun.... even being a conventional gun it is referred to as the best gun ever made....

Plus i do not have the compressor capacities to use an HVLP gun. my compressor only has a 13 gal tank.

I did do an 8:5:1 instead of the 8:4:1 and it seems to have helped.

The PSI i set using the BASF recommendations for this gun. So i just messed with mixture to adjust for the heat.

and well

al seems to be going well. Just my imperfections are what is messing it up....
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Old 07-07-2010, 12:25 PM
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good deal yea the heat changes everything and by no means was i down playing the gun those guuns are definitly great guns good luck and post some pictures after completed
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Old 07-07-2010, 02:12 PM
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Quote:
Originally Posted by 88BIGchevy
good deal yea the heat changes everything and by no means was i down playing the gun those guuns are definitly great guns good luck and post some pictures after completed

sorry that is a little bit of my 20 year old ignorance ...


Where are you located at in NM? i go to school at NMSU down in las cruces.


I will post pictures when i am done. So far no runs in the paint at all but i didnt prep well enough I think all of the sanding dust plugged the cracks in the factory paint so i could not see them until it was cleaned with the paint thinner and tac cloth....
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Old 07-08-2010, 10:09 AM
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Well thank you all for your help, i got it done. It looks decent. No runs or drips tho!!! also fixed most of the orange peel now its a slight lemon peel which can be color sanded out i think.

But hey its a jeep and its not going to be garaged 24/7
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