stripping paint off of a model

Well, your pressure is about right. You getting in nice and close to the model? The fan "might" be part of the problem. Whatever it is, the paint is drying too fast and hitting the kit already hard.

Just as an experiment, try spraying without the fan running and see if it makes a difference. Suck to have to replace the fan. (pun intended)

Tamiya thinner already includes a retarder, but you could always add a bit more. They're available at places like Michaels or Hobby Lobby. 

I use Tamiya paint thinner, and thin it the same t milk consistancy.

With my badger brush, siphon I use 15 - 20psi, and about 10-15 psi with my iwata gravity fed.

I really can't figure out why it does this, I have tried various other thinners and pressures.

unless my pressure guage is off, but like i said I have no problem with MM.

You think my spray booth could be the problem? Something to do with the fan? I am not 100% sure of the cfm it sucks at but it is a $20 bathroom exhaust fan about 12- 15" from the model. 

MM Acryl is some tough stuff to get off when dry thats for sure.

I don't know there is something weird aout Tamiya paint like it's waxxy or something. Only when I'm spraying with Tamiya flats do I get this problem where it dries before it hits the model and I get that stucco effect. I thin it down and use low pressure,  but it dries before it hits the model. 

with MM Acryl, i don't need to thin it down I use 20psi and always get a consistant finish.

strange how somethings work for one and not for others.

But I can say since I started using Future for gloss coating it has made my life so much easier. 

MM acryl is water clean up, it just seems more durable, is Tamiya an actual acrylic paint?

 you might be thinking of MM enamel paints which I only use for hand painting finer details. I really don't like spraing with enamels, though I know lots of people that do.

Windex is 85% Isopropyl Alcohol, 3% Ammonia and colored water, so there you go.

Funny, I go the other way and prefer Tamiya to MM Acryl. I actually LIKE being able to swish, swish, swish, wash it up, rinse it out and all ready for paint again, without resorting to nasty solvents and Q-tips. It's a funny old world, ain't it?

Thanks!

It's done now, I would have tried the windex aproach but I did'nt see your post until it was already done:)

I used 99% rubbing alcohol, funny thing, it got rid of the future and the tamiya coat, but it did'nt get rid of the Model Master Acryl paint, that i had to use nail polish remover and a q-tip.

This just reinforces my opinion that Model Master Acryl is a more durable paint than Tamiya.

I have been reluctant with Tamiya paints for a long while now, this last screw up killed it, no more for me I will stick with Model MAster paints.

Cheers! 

Windex with ammonia. Dunk or spray it on and most will wash right off. Use an old toothbrush (not your wife's!) to get corners and resistant patches off.

I keep a gallon jug of all the Windex I've cleaned my airbrush with. It's black and opaque, but still washes paint off REAL good.