AK11907 17ml Grey-Blue 1920s-1930s 3rd Gen Aircraft Series – 120 NEW COLORS: ACRYLICS FOR AIRCRAFTAK continues to evolve in its endeavor to offer the best paints on the market, adapting and improving all the acrylic paints and sets in the current catalogue to turn them into 3rd Generation acrylics which are perfect both for brush and airbrush (when diluted) application without losing their opacity and with the best fluidity. AKInteractives 3rd Generation acrylics are simply the most advanced acrylic formula in the market.