ttdriver Posted September 19, 2007 Share Posted September 19, 2007 Hi All, Juts been spraying a model in my garage and for some reason the paint has gone onto the surface with lots of air bubbles. The paint is premixed Revell airbrush paint, the airbrush is a badger 200 nh and I am using a Revell compressor with a moisture trap. Does anyone have any ideas what has gone wrong? Dave Quote Link to comment Share on other sites More sharing options...
my80malibu Posted September 19, 2007 Share Posted September 19, 2007 Hi All, Juts been spraying a model in my garage and for some reason the paint has gone onto the surface with lots of air bubbles. The paint is premixed Revell airbrush paint, the airbrush is a badger 200 nh and I am using a Revell compressor with a moisture trap. Does anyone have any ideas what has gone wrong? Dave Sounds like you may have had some oil possibly from your fingers on the painted surface after letting the paint dry wet sand the surface down some and try some grease and wax removerto prep it for paint Quote Link to comment Share on other sites More sharing options...
ttdriver Posted September 19, 2007 Author Share Posted September 19, 2007 I wiped it down with white spirit before painting, I wonder if that had anything to do with it? I also shook up the little pot that the paint came in could it be trapped air in the paint??? Its the first time this has happened and I have sprayed a few coats prior to this with no problem. Quote Link to comment Share on other sites More sharing options...
kurth Posted September 20, 2007 Share Posted September 20, 2007 is it little bubbles on the surface of the model? Usually that is some kind of contamination. maybe if you could take a picture we can tell you for sure. that sort of thing is so frustrating. I wiped it down with white spirit before painting, I wonder if that had anything to do with it? I also shook up the little pot that the paint came in could it be trapped air in the paint??? Its the first time this has happened and I have sprayed a few coats prior to this with no problem. Quote Link to comment Share on other sites More sharing options...
Brendan Posted September 20, 2007 Share Posted September 20, 2007 I wiped it down with white spirit before painting, I wonder if that had anything to do with it? I also shook up the little pot that the paint came in could it be trapped air in the paint??? Its the first time this has happened and I have sprayed a few coats prior to this with no problem. It sounds like that the other coats you had on prior were still off gassing and the off gassing is being trapped by the last coat of paint which causes the little bubbles. The best way is to strip down and start over again. When I paint, I usually wait 5 to 10 minutes between coats. Starting from back end of the model to the front...by the time I get to the front, I start on the back again. Hope this helps. Quote Link to comment Share on other sites More sharing options...
ttdriver Posted September 20, 2007 Author Share Posted September 20, 2007 The other coats had been done prior to the coats today with a few days between, I also wet sanded between coats. I am thinking that as you guys say its probably some kind of contamination. I will clean out my airbrush again and wait for the car to dry. I will then sand it back and get some pre-paint wipes from an autostore or something. Dave Quote Link to comment Share on other sites More sharing options...
ttdriver Posted September 22, 2007 Author Share Posted September 22, 2007 Well gave it another go today and found the same thing happening So I turned the air down a bit to around 20 psi and hey presto gone! So I am gonna wait until after the weekend and sand back the coat I laid today nice and smooth and then re shoot the colour again. Dave Quote Link to comment Share on other sites More sharing options...
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