Acrylics Air brush problems

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Wellington 33 & 76

Active Member
Joined
Oct 5, 2011
Messages
58
Location
Colchester
Dear all

Help is needed. I have a new airbrush and I am using the model color Vallejo paint. Is this right to do this?

Also my airbrush keeps spitting moisture out in stead out paint, does anybody now why!


Cheers

Matt
 
Hi there,

I'm sorry if this sounds simple but;
Is it Vallejo model AIR paints you're using ? As they are designed to be used straight from the bottle after a good shake.

The other Vallejo model colour range need to be diluted with water before spraying.
 
It sounds like your paint is too thick, and you have moisture in your air line. Try getting a moisture trap from a hardware store and install it between your air source and hose to airbrush.

As Grant said Vallejo model air does not need to be thinned. However, Vallejo model color does need to be thinned to be used in an airbrush.

Hope this helps

Todd
 
Does your brush hose or compressor have a moisture trap? My first set didn't have this and I experienced the spitting issue quite a bit. My current setup has a moisture trap and I haven't run into this issue.

I have found that I have to dilute the "Model Air" paints a little, even though, they are primarily designed to be used straight from the bottle w/o any dilution (that might just be my a/b tho). I also never go over 20 psi... mine usually sits at 12 to 15.

Hope this helps...

Ronnie
 
Join the club!o_O

I have nightmares with my air brush moisture trap and all.
Paint over diluted, under diluted, orange peel,needle clogging and so forth and I only use it for undercoating :(
the only reason it doesn't get chucked out the window in a fit off temper is its
bloody cost.:rolleyes:

Ron
 
You can thin Model color with AJAX glass cleaner, works very well.

See this please:
1
2

Hope it helps you?(y)
 
I like Tamiya acrylics for airbrushing, I'm a bit hit and miss with Vallejo.
I know that doesn't help Matt, but the consensus appears to be a dilution issue.
Carl.(y)
 
Water based acrylics are prone to clog the airbrush very early as the film building process starts immetiately. To delay that, thin them more than enamels and a thinner which evaporates not so fast as water will help. Any window cleaner will help which contains alcohol, ammonia and soap. If you want to go any further, use a retarder. Vallejo offers one, but a acrylic retarder from the artists store will do it also. When starting spraying, start with a full open nozzle (not directed on the objekt), and clean the nozzle from (short) time to time with a brush.
I don't use a moisture trap. Moisture / water drops where the hell when I used enamels, but since I am using acrylics, there is no need for it. Water is water and any small amount from the air hose will be simply mixed into your paint.

H
 
I'm with you Ronnie, I've used every paint under the sun and 3 different air brushes-just can't get the hang of it-never ending problems of clogging and then having to clean the b****Y thing afterwards-I kept enquiring about going to the Sth Coast on one of Rob Hendons airbrushing courses but he doesn't seem to run them anymore-I think it is just a case of being shown how:whistle:

Keith
 
A few places run course Keith. I use xylene for cleaning mine, same solvent that's in Liquid Reamer. But a fraction of the cost, £7 a litre as opposed to £4+ for 150mls.
Carl.
 
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