After trying it, I moved it back to the "brush on and then sand" pile of substances
I started using Alclad's already mixed primer/surfacer,,,,,,it comes with shot in it already to shake,,,,,,,,it works like a dream, I just go out on the porch, shake the jar until there is no more evidence of gray flecks in the bottom of the jar,,,,,,,pour or pipette it into my airbrush cup,,,,,and spray
it dries in minutes, the smell is gone in a very short time, and when I open the plastic box the next day, the model is ready for my Acrylic paints, which I can then spray indoors right next to "Mrs Allergic"
the only caveat I have is that if you have to keep the smells away,,,,,,,,,,,,don't open the plastic box early or often,,,,,,just wait it out a bit,,,,,,,,,,,even with a little waiting, it is still faster than some of the other primers we've used
that lets the Mr Surfacer work as a very thin, stick-brushable putty, that can be sanded in just a few minutes, perfect for those seams that show up after you thought you were all done, but are just barely there to bug you,,,,,,just accept it, brush the stuff on only right there, and sand after a beverage break
Rex