MM enamel problems---HELP! PLEASE!

Does the trap have a release valve that lets out the moisture? Or is it the kind that uses an absorbent filter?
If it's the latter, and there is water in the moisture trap then the life of that moisture trap is probably past it's prime and should be replaced.

The pic you show appears to be water in the paint.

Marc - that looks a lot like it was caused by an oily surface.  I have had the same thing happen, ironically on another Trumpeter kit, the HH-65 Dauphin.  I ended up buying another one and using Simple Green on it (kind of like Castrol Super Clean) and got decent results, but it seemed if I left it for more than two or so days the surface looked oily again, maybe its the plastic itself and not the mold lube that is causing it?  I seem to remember someone commenting on some asian and eastern european companies using cheaper plastic and it 'sweating' oils after time...  (oils would seep from the plastic I guess and make the model greasy again.)

On the same note though, I have also bought bad MM paint before too... mainly at one LHS that I vow to buy bothing but kits from again (Ok maybe alclad, but thats it!  no enamel paints!), I think he doesn't rotate stock.    One bottle while not exactly like your results, really didn't cover good and left an uneven surface to the paint, almost like bubbling.  Another bottle clogged my airbrush and ended up flowing back into the body of it... Is this the first time you have used out of this bottle?  I have heard other people here have mixed results due to batch variations in MM as well...

Hope you have better results... I've been enjoying your build in the Germany BG...

-=edit=-

On the mineral spirits subject, I had somewhat similar (poor) results with different mixtures.  At $5.00 a bottle at Hobby Lobby I'm sticking to the MM thinner for painting and mineral spirits for cleaning.  As little as I spray enamel nowadays it's worth it!

Bill – I thought maybe water too...at first.  The trap has a clear body and there is just a tiny bit of fogging inside and that’s all… there has never been enough to drain out the bottom.  When I look at the other wing “B” side that I sprayed I noted the paint was pulling away from a series of test rivets I had punched, leaving the same type of spot in the paint with the rivet dead center.

 

Tom – One wing interior test swabbed with alcohol the other not, 2 different bottles of paint… same thing.  Thought it was the Trumpeter plastic at first since this is the 1^st of their kits I have built.  The Evergreen styrene on the flaps did the same thing so I am at loss.  Never need a primer before but I guess I need to try one.  Glad you are enjoying build.  As I get closer and closer to painting I am getting nervous of messing it up.

 

Thanks for help guys...it is appreciated.

What is temperature difference between the room in which you are painting and the room tha holds the compressor?  I am wondering if your airbrush is shooting a stream of cold air into a warm room and causing some kind of moisture condensing effect in the wet paint.  I vaguely remember once having something that painting very similar to your photo, and my memory is dim enough that I think it may be from my pre-compressor days when I used cans of Propel which got quite cold during use.

From what you are saying, I would almost say take your airbrush apart and clean it REALLY good! Scrub everything down with lacquer thinner cause it sounds like, and don't ask me how, but it sounds like you have some sort of oil in your A/B that is getting in the paint when its sprayed through it! Good luck Wing_Nut!

That's just so odd Marc... to me it looks, walks, talks and smells like a duck.  That looks like poor adhesion due to oiliness.  The odd thing is though that the evergreen is doing it.  I'm really at a loss on this as the evergreen part throws a wrench in everything I have been thinking about it... especially the part about two different bottles of paint doing it. 

Was the other bottle one you have used before with good results?  That would be a good test, to use some paint you've used before.  If it still does it, then there IS a conundrum for us, isn't there!

Well good luck, if I think of anything else I'll jot it down here.

THose are what we call in the paint and body, Fish eye's coused from contaminated surface, oils,grease and anything the model industry use's for a release agent. as said clean the parts vary well and dry them.