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OK I bought my first ever GW airbrush at the weekend and when I used it for the first time, the results were less than stellar. Basically, I didn't get the mix of paint-water correct, so it came out far too watery. I then corrected this and resprayed, which although better still wasn't satisfactory.
As you can see, most especially on the bases, the paint has split into it's component pigments.
Please can anyone give advice or link to a guide which advises how best to mix the paint/water? The paint pot on the airbrush has a marker than shows paint/water consistencies and it seems to be 3:2 paint:water but it's all rather vague.
(Can those pictures be expanded to full size or are they permanently tiny?)
I've found this
on the GW site, but it still doesn't answer the question I have - assuming I fill my airbrush with paint up to the first line, where then do I top it up with water?? The first water line? The second? Do I add enough water equivalent to the bottom half of the water amount?
Since your pictures are too small it is hard to tell what you are trying to describe.
Here are my thoughts on the airbrush. I bought one myself and have used it a few times now and have been very pleased with the outcome.
I don't think the thinness of your paint is the problem. I mix my paint pretty thin and from the sounds of it you followed GW's advice as to the marking on the pot. Are you spraying to heavily or too close to the figures? It is best to spray about 12" from the figures and do light sprays over several coats. You can try to open up the nozzle and get a wider spray rather than a more focused blast of paint from the airbrush.
Try it with bottled water just in case it's something in your local water supply. I douvt it, but it's certainly worth a try and it is going to be the only component of the paint that you are applying which isn't universal.
Not trying to be the bad guy here, but the GW airbrush is hardly worthy of the name "airbrush" because it is little more than a rattle can sprayer. Yes, you can get a little better results from this than a rattle can, but you won't be able to get "stellar" results unless you take the plunge and buy a proper airbrush. I would love nothing more than to tell you different, but I can't. The way an air compressor works versus a can of air is worlds apart, same with a simple airbrush such as the GW one. Almost any single action airbrush is going to perform better. A double action one will be even better.
I will say that the GW airbrush is very nice for primering models.
As for the mixing ratios, you may need to get some airbrush medium. Some other options would be acrylic thinner or even acrylic glazing medium. The point is to thin your paints while not reducing the pigment concentration (which water has a tendancy to do). If you're using GW paints, you'll need at least a 3:1 thinner/paint ratio. Other paint lines may require less...or more. It should resemble and flow like colored skim milk.
EDIT: Also remember to clean your airbrush often (during and after useage). A simple way to clean it would be to use window cleaner and spray it through the brush until clear. Cleaning each part frequently is also recommnded.
Last edited by Skullcrafts; December 8th, 2008 at 18:07.
From what I understand the GW one is simply a repackaging of the badger single action airbrush. It works effectively enough from what I can figure. I have only used it a few times... but I do like the grip better than holding a traditional airbrush and I did find cleaning it very easy. Sure double action is better but really - for miniature painting this does what you need it to.
I didn't consider the canned air before - but that could also effect the condition of the spray. I myself got an adapter so I could fit it on my aircompressor. Just in case anyone is wondering the adapter you need is a 1/4" compressor adapter for badger airbrushes. You can get them online for around $2-5 (I picked up mine at an art supply store).
Be careful with the GW "airbrush", I've read somewhere their prone to exploding or something.
I wish I could afford an airbrush too.
They were initially recalled due to a defect. I believe it had something to do with the connection valve that goes onto the compressed aircan. I don't think it was a "dangerous" issue but since then it has been fixed and the newly released ones don't have that issue.
But I vant them to 'xplode! Muhaha. I mean... thats good slorak.