This is a primary colour for streaking and stains. AX-012 1975 Weathered Black has a natural warm almost purple tone to it. It's visible on both the ANH and ESB Falcons and X wings made by ILM and is also seen on Fett and other ships. It has a very distinct liver colour to it when laid on with an airbrush and is easily recognizable on reference photos of the original models especially the ROTJ AT-ST stop motion models. A true Star Wars modeling must have.
To be thinned with Archive-X AX-ATR thinner for airbrush use. Ratio's vary from colour to colour with an average of 70/30 paint to thinner.