I pour the paint out of the bottle into a mixing jar, add a paint jar capful of Testor's thinner and mix it, and then airbrush with it. Never had an issue.
: I am paint brusher mainly using Polly Scale
: and Model Master acrylic paints. I shifted
: over to Model Master when they introduced
: S&S Marine pigments. I am starting to regret
: it. The mixture is always thick, even with
: newly opened bottles. They need far more
: thinning than a 1/2 oz. bottle can hold.
: Were they formulated for the air brusher?
: That would explain a great deal.
: Spoiled on Polly Scale to be sure as it was
: formulated for both types of painters