I have attempted to use the Vallejo line of paints and honestly i can tell you that they are not good. The model air colors are too thick, the surface primer is (as your seeing) not good at all. I have had great luck with the Tamiya line of paints whether it be airbrushing or brush painting. I even use the Tamiya line of paints for my D&D Miniatures. My advice ? Get rid of the Vallejo pints and go with the Tamiya Line