Airbrush problem

mezon

New Member
Joined
Jun 5, 2021
Messages
7
Hello,

I'm doing plastic models, started airbrushing recently, had a "toy" compressor, i was happy with it, but it broke, and i got this new one
But somehow im getting this result, a furry texture of painting, not sticking to the surface. I'm using revell enamel paint. Tried with one of my greens and this black, same results.
After wating to dry and give it a light brushing:
s [![enter image description here][1]][1]
Is it a known problem?
Thank
 

urumomo

Well-Known Member
Joined
Mar 18, 2013
Messages
2,449
The enamel is drying before it hits the work .
How far away are you holding the airbrush ?
Are you using a thinner for the enamel ?

It doesn't look like you're using a primer ( ? ) -- but that's not the major issue .
 

mezon

New Member
Joined
Jun 5, 2021
Messages
7
The enamel is drying before it hits the work .
How far away are you holding the airbrush ?
Are you using a thinner for the enamel ?

It doesn't look like you're using a primer ( ? ) -- but that's not the major issue .
No, i never used primer, but had very nice results without it.
My compressor came with a 4 bar default setting, i think my previous "toy" compressor hardly made 2 bars .
I guess the pressure is too high, and i'm holding the brush too far.
So i made a test with 2.5 bars, spraying from about 6-7 cm. It is better but still far-far from the result i had before.
Next i will turn down to 1.5 bars.

Never measured the mixing ratio before, just made it to a milk consistency, but, yes, i am using a thinner.
 

urumomo

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Mar 18, 2013
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2,449
keep experimenting - you'll get there .
Closer to the work and lower pressure will prevent the dry-coat .
Thinner should help but it should take a very small amount .
 

mezon

New Member
Joined
Jun 5, 2021
Messages
7
Turned the pressure down much much lower, painting it from very close, same shitty results, just the furry texture of the paint is finer.
Funny, I had very nice first results with the cheapest stuff, now i have proper tools, and can't make it acceptable...
Thanks anyway
 

urumomo

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Mar 18, 2013
Messages
2,449
So the only thing that you have changed is the air source ?

What are you using for thinner ?
 

mezon

New Member
Joined
Jun 5, 2021
Messages
7
So the only thing that you have changed is the air source ?

What are you using for thinner ?
Yes, only the compressor was changed from cheap membrane to a oil-free piston operated.
Using Revell Color Mix thinner with Revell enamel.

So, you are saying this can also caused by overthinning the paint? That milk consistency is around 1:1 ratio.
 

urumomo

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Mar 18, 2013
Messages
2,449
I've never used Revell paints and the only enamels I airbrush are metallics and are AB ready so need no thinner .
Revell recommends 3 to 4 parts paint to 1 part thinner so 1: 1 appears to be a very dilute mixture -- that would explain how easy it is to remove from the plastic once it " dries " .
 

urumomo

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Mar 18, 2013
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2,449
well , their website says 1.5 parts paint to 1 part thinner for airbrush .
Man , that seems like a lot .
That stuff must be really viscous .

well . EDIT , the one page suggests 1.5 to 1 but this product page is back to the 3 or 4 parts to one part thinner :
 

urumomo

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Mar 18, 2013
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2,449
If you scroll down just past the pipettes to the Color Mix .
it shows 3 parts to 2 , which is the 1.5 to 1 :

:D they need to make up their mind


Are the environmental conditions similar to when your results were good ?
 
Joined
Jun 9, 2013
Messages
11
My suggestion test and experiment with the paint to thinner ratio that works. Sometimes you need to figure out what works yourself than what Revell recommends. It's all about trail and error.
 

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