Tamiya Smoke...

I’ve read on many occasions that you guys use it for painting exhaust stains and other weathering…but never anything about whether you thin it, what pressure to use, etc… how do you guys go about using it for weathering?

I don’t use a lot of it, but I have used it some. It’s basically just a clear carrier with a little bit of pigment, so I treat it just like any other acrylic paint. I thin it about the same, and spray at the same pressure and distance from the model. Using my Omni airbrushes, I usually thin it about 3:1, spray at about 12-15 psi, about 4"-6" from the model.