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| Airbrush question; paint | |
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| Tweet Topic Started: Sep 23 2016, 08:57 PM (299 Views) | |
| Santacarl | Sep 23 2016, 08:57 PM Post #1 |
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Advanced Member
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Hello All, I have an airbrush question or 2 I hope someone can help with. I have an Iwata Eclipse dual action and a couple of different needles/nozzles. When I use the one for small patterns I get lots of clogs using Model Master Acrylics. I read some place a long time ago that there was trick you could use on the order (paint or air) of when to let up on the trigger but I can't remember which to stop first...Is it letting up on paint or air first that will help it not to clog....? Also.....Thinning... Anyone using MM acryl what is a good ratio to thin with? Thanks...... SC |
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| stimpy | Sep 25 2016, 02:42 AM Post #2 |
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Is It Safe?..... Nope
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Thinning acrylics in my mind is a must; I use Vallejo thinner or distilled water, a few drops at a time, test the spray and adjust accordingly, changing pressure down as well. Acrylics dry real quick, so consider a fluid retainer to increase dry time - I don't use one myself but do with Mr. Color acrylic lacquers. Once the acrylic has dried on the needle you need to remove it, I use a brush dipped in isoprop or Windex and rub off the paint on the needle tip while still in the airbrush, sometimes, depending on humidity/temp this can be every 30 flipping seconds - one reason why I don't care for using pure acrylics. Unlike enamels and acrylic lacquers where the dried paint will flow again once you activate the airbrush, there's no way this will happen to dried pure acrylic. So I guess you are using the .35mm head, you need to thin that paint rather than jack up the pressure. |
| No more plastic | |
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| dknights | Sep 25 2016, 03:04 AM Post #3 |
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The court of LAST RESORT!
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One reason I hate acrylics is that clogging is a problem. MM are not the best acrylics in any event. One thing you can do is add a retarder to slow the paint drying |
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David M. Knights Fortes fortuna adiuvat 14 Finished: Special Armor V-2, Airfix P-51 15 Finished: SBS Gladiator engine 16 Finished: Brengun C2 Wasserfall, Merit SS-N-2 Styx, World's smallest diorama, Airfix Hurricane. 17 Finished: Japanese Carrier Deck, 18 Finished: NONE The bench:Platz T-33, Trump. T-34/85, Meng F-106, Airfix P-51 #2, Airfix P-40 Revell MiG-21F-13, Ace Citroen V-11 | |
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| peebeep | Sep 25 2016, 01:48 PM Post #4 |
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Lots Of Trouble Usually Serious
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Tip clogging with acrylics is always likely to be a problem, using smaller nozzles exacerbates the problem. Use a larger nozzle and get in close for fine lines, using the lowest possible spraying pressure. To find optimum spray pressure reduce until the paint sputters and increase just enough to get the flow going properly. First rule of double action airbrushing is air on before paint. If you use a trigger style airbrush it does it for you. peebeep |
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www.locate-and-cement.com Locate and Cement website RevellAtions Bring me my chariot of fire Paul Brown, Chelmsford, UK
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| Santacarl | Sep 27 2016, 02:14 AM Post #5 |
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Advanced Member
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The air on first is helpful....thanx |
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7:24 PM Jul 11