Citadelgrad Posted July 11, 2021 Share Posted July 11, 2021 I airbrush in my garage. Its clean but not a clean room. i just posted up photos of my primer coat, which i laid down with a new Iwata i picked up today. to my dismay, there appear to be dust, etc in the primer coat. although a new airbrush, i dont think this was spitting. I think dust landed on the model? Either way, is this something that i can polish off with very fine polishing pads? i washed the model before painting, and i looked at it under the optivisor before i painted, it was SMOOTH. i also thinned the primer with mr self leveling primer at about 30%, even though its a no thinner needed primer. The tip stayed clesr the entire session, but i was spraying for quite a while. ideas? Link to comment Share on other sites More sharing options...
Iain Posted July 11, 2021 Share Posted July 11, 2021 Fairly normal - nothing a quick go over with some fine (1200 grit) wet and dry paper - or Micromesh pad - won't easily fix. Iain scvrobeson, Citadelgrad, chrish and 2 others 5 Link to comment Share on other sites More sharing options...
Panzerwomble Posted July 11, 2021 Share Posted July 11, 2021 Hard to say if dust or a bit orange peel - where the paint has dried to quickly and not flowed out in time . I'm guessing its hot in South Cal . As Iain says a quick fix, you could even gently use a kitchen sponge scrubby with some water to level it down . Citadelgrad 1 Link to comment Share on other sites More sharing options...
chuck540z3 Posted July 11, 2021 Share Posted July 11, 2021 Totally normal as mentioned above and it's due to dust particles landing on the paint. No big deal at all- just sand the crap off with fine sandpaper or fine sanding cloths. It will come out out a bit streaky looking but since it's a primer coat, you'll never see it after a first coat of the primary color, which will also likely attract more crap. Sand it off too and spot paint, which can turn into a never ending repair session, but in the end, worth it. Without exaggeration, I might take 30 trips to the spray booth to get my paint finish looking flaw free. Cheers, Chuck Gazzas, MikeC and Citadelgrad 3 Link to comment Share on other sites More sharing options...
Woody V Posted July 13, 2021 Share Posted July 13, 2021 I'm not sure what primer you're using but this is why I tossed all my water based paints in favor of lacquer. Citadelgrad and Anthony in NZ 2 Link to comment Share on other sites More sharing options...
Paul2660 Posted July 17, 2021 Share Posted July 17, 2021 I would consider 0000 steel wool wet. Works great of this type of problem. Paul scvrobeson and Citadelgrad 2 Link to comment Share on other sites More sharing options...
nmayhew Posted July 18, 2021 Share Posted July 18, 2021 i think to get a better idea we need to know what primer you are using, what psi, and how far away you are spraying, are you wet coating etc etc Woody V 1 Link to comment Share on other sites More sharing options...
Treehugger Posted August 26, 2021 Share Posted August 26, 2021 (edited) My guess is that, the dust was there on the model before you started spraying. So, I am thinking the dust that was already there got sealed with the layer of paint. I believe I've seen something like that before, but with a hand brushed model. Edited August 26, 2021 by Treehugger Link to comment Share on other sites More sharing options...
John Stambaugh Posted August 27, 2021 Share Posted August 27, 2021 Sanding dust will certainly be deep inside the thin crevices where you just can't reach with a toothbrush. When I get ready to paint I always blow out these areas with a shop compressor and soft tip blow gun with modest air pressure. Your airbrush at 10- 15 psi stirs up that dust which them lands in your wet paint. Link to comment Share on other sites More sharing options...
thierry laurent Posted August 29, 2021 Share Posted August 29, 2021 Static electricity is a common issue with plastic... Very probably this can explains the problem. Citadelgrad and scvrobeson 2 Link to comment Share on other sites More sharing options...
europapete Posted August 29, 2021 Share Posted August 29, 2021 As Thierry says, probably static attracting the dust. Wipe the modal down with anti-static cloths/wipes before painting. Any automotive paint store stocks them, and they are not expensive for a big box full. Regards, Pete in RI. Citadelgrad 1 Link to comment Share on other sites More sharing options...
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