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How do you stop water frome getting to the airbrush?

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  • Member since
    January 2008
  • From: Adelaide, South Australia
How do you stop water frome getting to the airbrush?
Posted by somenewguy on Saturday, January 16, 2010 5:19 AM

I have recently bought a new compressor with a three-litre air-tank and moisture trap, however, whilst doing the camouflage on my 1/48 Panther minor disaster struck when a few droplets of water spat out. What is wrong, or most probably, what am I doing wrong?Confused

Cheers!

At the end of the day one's work may be completed but one's education never!
  • Member since
    August 2005
  • From: Sydney, Australia
Posted by Phil_H on Saturday, January 16, 2010 5:49 AM

The problem with many compressors, 'especially smaller ones, is that the moisture trap is attached directly to the outlet on the compressor. 

Why is this a problem? Because as the compressor warms up, the moisture trap warms up, and as the trap warms up, it becomes less able to separate water from the air passing through it.  Moisture in the air then condenses in the hose and spits out your airbrush.

You can connect  a length of regular air hose to the moisture trap and add an additional inline moisture trap (about $12.00 at Bunnings) to the end of this, before connecting your airbrush hose.

  • Member since
    May 2005
  • From: Left forever
Posted by Bgrigg on Saturday, January 16, 2010 7:27 AM

I'm paranoid about water in the airline so I have a water trap attached to my compressor, another mounted on my spray booth next to the pressure regulator, and my airbrush hose has the inline style. This way I can insure that any disasters created during painting are mine and mine alone.

Maybe I should re-think that? It would be nice to have something else to blame! Wink

 

So long folks!

  • Member since
    January 2008
  • From: Adelaide, South Australia
Posted by somenewguy on Saturday, January 16, 2010 9:14 AM

Thanks Phil. But I am a bit confused about your solution - You can connect  a length of regular air hose to the moisture trap and add an additional inline moisture trap before connecting your airbrush hose.

What is the order of connection? Thanks again.

At the end of the day one's work may be completed but one's education never!
  • Member since
    August 2005
  • From: Sydney, Australia
Posted by Phil_H on Saturday, January 16, 2010 9:25 AM

Ok, what I meant was to run an air hose from the moisture trap on the compressor to a second moisture trap and then connect your airbrush hose to the second trap.

  • Member since
    April 2003
  • From: Hayward, CA
Posted by MikeV on Saturday, January 16, 2010 12:44 PM

Bgrigg

I'm paranoid about water in the airline so I have a water trap attached to my compressor, another mounted on my spray booth next to the pressure regulator, and my airbrush hose has the inline style. This way I can insure that any disasters created during painting are mine and mine alone.

Maybe I should re-think that? It would be nice to have something else to blame! Wink

 

I only have the one on the front of the compressor alone and never have any water in the airline.

I even blow the dust out of my computer case with the airbrush and have never seen any water.

I do use the Badger Million-Air compressor though and I don't think it gets warm enough to create water vapor in the airlines. The person asking though is in an entirely different climate being in Australia!

Wisdom is the right use of knowledge. To know is not to be wise. Many men know a great deal, and are all the greater fools for it. There is no fool so great a fool as a knowing fool. But to know how to use knowledge is to have wisdom. " Charles Spurgeon
  • Member since
    August 2006
  • From: Neenah, WI
Posted by HawkeyeHobbies on Saturday, January 16, 2010 1:20 PM

You also might consider the location of your compressor. If your compressor is high on a shelf it is in a warmer location than on the floor. Heat and moisture rise and your compressor is drawing in that warm moist air.

If you keep your compressor on the floor, the air temp is more constant as is the moisture level. You want your compressor at the same level or lower than your spraying location.

Also are you draining your bulk air tank frequently? Draining daily when using it is a safe practice.

The only 100% way to keep water out is the combination of a refrigerated air dryer and moisture traps. It is an expensive option however.

The cheaper route to go if moisture continues to be an issue is a CO2 or Nitrogen system.

Gerald "Hawkeye" Voigt

http://hawkeyes-squawkbox.com/

 

 

"Its not the workbench that makes the model, it is the modeler at the workbench."

  • Member since
    May 2005
  • From: Left forever
Posted by Bgrigg on Saturday, January 16, 2010 1:36 PM

Mike and Gerald,

I ended up with three traps by accident, not design. But my paranoia stems from before I had any. I started off with a very small compressor and had no regulator or trap. I eventually had a single issue with water, and so got a trap and regulator. Then I switched compressors, which came with a built in water trap. Then I upgraded my air hose, which came with the inline trap.

I could remove the one mounted to the booth, if I was inclined to get out my tools and bother. However, I kind of like the triple redundancy, especially since my compressor lives outdoors!

So long folks!

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