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Old 02-24-2010, 05:08 AM
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Problem with air compressor "splatter".

Hi all, when I try and spray with my air compressor and paint gun, the paint seems to come out a bit, and stops being consistent, therefore when the paint does come out, it splatters out bigger bits of paint, leaving and lumpy, mottled finish Undecided.

I was wondering if any one knew why this was? Could it be paint consistency?

Any help would be brilliant.

Thanks a lot.

David.

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Old 02-24-2010, 06:56 AM
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Let's start with the easy stuff...is your vent hole clean and clear?
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Old 02-24-2010, 07:40 AM
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Did you strain the paint going into the cup?
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Old 02-24-2010, 08:09 AM
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is your gun clean or just cleaned recently? If recently cleaned it might have dislodged some particles
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Old 02-24-2010, 08:12 AM
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What my first thought by the way you put it would be the paint needs to be reduced.
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Old 02-24-2010, 08:32 AM
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Quote:
Originally Posted by Rix-Trix
What my first thought by the way you put it would be the paint needs to be reduced.
X2. This is probably not an air compressor problem.
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Old 02-24-2010, 10:05 AM
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Wow! Thanks for the answers everyone . Yes the hole is clean as when I just spray air through the gun it is fine, thats why I thought it could be a paint problem.

No I didn't strain the paint, would you recommend doing this? Sorry, as I'm sure you're probably aware, I'm fairly new to air compressors etc!

Quote:
What my first thought by the way you put it would be the paint needs to be reduced.
Ah, do you think I should thin it more?

Thanks everyone.
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Old 02-24-2010, 10:32 AM
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Quote:
Originally Posted by anselmo107
No I didn't strain the paint, would you recommend doing this?
Yes. Any auto paint store should have very inexpensive or free paper strainer/funnels. Mine always throws in a handful free with a paint purchase.
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Old 02-24-2010, 05:29 PM
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14 times out of 15 it's the fluid tip.

Remove the air cap, tighten the fluid tip and replace air cap...

even if you think it is already tight,

see this link
why is my paint gun spitting?

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Old 02-25-2010, 07:03 AM
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Try spraying straight thinner through the gun to see if it works like that,if it works your paint is to thick...Is the paint cup on top of the gun or the bottom?
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Old 02-26-2010, 10:10 AM
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just wondering what kind of compressor you have? is it too small for painting? does it run out of umph! if you have one of those little 20 gallon jobs your gonna be running out of air. you'll start out fine, than as the pressure drops your gun can't atomize the paint, and the gun starts to spatter. ask me how i know ? education is expensive, LOL!
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Old 02-27-2010, 11:56 AM
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Thanks JS arnold, I will try that and see if it helps.

Quote:
Try spraying straight thinner through the gun to see if it works like that,if it works your paint is to thick...Is the paint cup on top of the gun or the bottom?
I haven't tried that yet, but my cup is on the bottom.

Quote:
just wondering what kind of compressor you have? is it too small for painting? does it run out of umph! if you have one of those little 20 gallon jobs your gonna be running out of air. you'll start out fine, than as the pressure drops your gun can't atomize the paint, and the gun starts to spatter. ask me how i know ? education is expensive, LOL!
haha! My air compressor is 2.5HP and 50 litres so I think it is big enough.
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Old 02-27-2010, 05:00 PM
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2.5 hp and 50 litres? whats that about 25 gallons? i don't think you could paint a car with that, but i'm not a professional. i had a 5hp - 50 gallon and i had to upgrade to a 8 hp 80 gallon to have the proper cfm for my paint gun. when you start spraying a car you can't stop untill your done. your compressor has to be able to keep up to the demand of your paint gun. i'm not saying it's your only problem, but may be part of it. if the compressor is aired up and your getting spatter from the first squeeze of the trigger, than it's something else. if it works good when you start than poops out after a few minutes it could be an air delivery problem.
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Old 02-27-2010, 08:21 PM
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Is it possible your guns spitting out water and you're mistaking it for paint?
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Old 02-28-2010, 07:04 PM
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Quote:
Originally Posted by deadbodyman
Try spraying straight thinner through the gun to see if it works like that,if it works your paint is to thick...Is the paint cup on top of the gun or the bottom?
Those siphon guns take a lot more pressure but will work for a little job.try running the straight thinner through it then cover the tip with your finger and pull the trigger this will blow any chunks back into the cup...thin your paint and strain,try it again, it should work... sounds like your using a house paint.what kind of paint are you using? it matters when you are cleaning up .you dont want to clean a gun with thinner if your running a latex house paint.Basically to get the paint out of the gun it needs to be thin like the consistency of water
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