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Vallejo thinner -anyone used it as Matt Cote?
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England - East Midlands, United Kingdom
Member Since: February 07, 2004
entire network: 911 Posts
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Posted: Tuesday, August 16, 2011 - 05:58 AM UTC
I read a couple of years ago in Tamiya Model Mag about being able to use Vallejo Acrylic thinner as a Matt Coat. I bought some at the time, but haven't tried it until now.

I sprayed it, 1 thin coat, undiluted using my Iwata at ~20psi, on a couple of drop tanks, the top one is unsprayed. As can be seen, the thinner definately has a matt effect, however there are also white spots visible - some sort of splatter? I did have problems with the airbrush blocking and having to give it a full blast to clear it. Seems strange that thinners would block an airbrush though.

As can be seen, the thinners are quite milky looking.

Anyone else tried this? Comments? I might try it next time with either a couple of drops of water or Tamiya thinners in the cup to try and stop the blocking.

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Quebec, Canada
Member Since: September 14, 2005
entire network: 2,485 Posts
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Posted: Tuesday, August 16, 2011 - 02:02 PM UTC
Ahoy Neil,
Now that is very interesting.....I have always suspected that thinner to be
of a PVA based chemistry.(Similar to diluted white glue). I have never
tried it as a matt coat but will give it a shot.

I would recommend dilution with just plain distilled water as from
experience, Vallejo MA paints do not do well with alcohols. They tend
to get gummy on me so I can assume that the thinner would too.

I use distilled water with excellent results.

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New Brunswick, Canada
Member Since: October 18, 2002
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Posted: Tuesday, August 16, 2011 - 04:00 PM UTC
Just use Vallejo Matt varnish straight from the bottle, works wonders.

And no....Vallejo being a water based resin paint, alcohol is definitely not recommended, unless you like a nice goopy, curdled mess to clean out of your airbrush.

As far as the thinner blocking your airbrush? If the thinner drys around the lid of the bottle, it can create clumps, which likely got into your thinner mix, causing the blockage....same with the white spots on your tank...just pre dryed thinner that got shot through with the liquid.

Vallejo's thinner is designed to thin their paint, so now....it won't make the paint gunky...if you are having problems with the thinned paint blocking your AB...good sign that the paint isn't thin enough.

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England - East Midlands, United Kingdom
Member Since: April 29, 2004
entire network: 1,336 Posts
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Posted: Tuesday, August 16, 2011 - 11:00 PM UTC
I haven't heard about using that for that purpose before,

The gloopy stuff they call thinner, is basicly the resin-like carrier for their paints,
but, as above, use the errr... MAT Varnish... does what it says on the bottle & no dramas.
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England - South East, United Kingdom
Member Since: February 05, 2008
entire network: 1,381 Posts
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Posted: Wednesday, August 17, 2011 - 03:22 AM UTC
interesting,i'll have to try that. i have alot of that lying around unused as i use the vallejo airbrush cleaner to thin the model air paints...