Hataka builds its range around colour-coded lines that differ in binder and therefore in the way you work. One is a water-thinnable acrylic for the brush, another is a lacquer type with a very thin and durable film, a third is mixed straight for the airbrush, and a separate line is aimed at miniatures.
Shades follow traceable regulations and are usually named after the operator, which makes them easy to find when you are chasing a particular machine.
The key is simple: the colour in the line name tells you which binder you are getting and what you will thin it with. Shade names run in parallel across lines, so the same tone exists in more than one version and you choose according to how you paint.
Blue Line in 10 ml is the most versatile choice. It thins with water or its own thinner, covers well under a brush and leaves no need for aggressive cleaning chemicals. Usable in a living space.
Orange Line gives a harder surface that copes with masking tape and light sanding. It needs its own lacquer thinner and a ventilated bench.
Red Line in 10 ml arrives at airbrush consistency, which removes the step of adjusting density. For figures and miniatures there is a separate Violet Line with heavier coverage.
The subject coverage leans heavily towards aircraft kits, although it works just as well on ground vehicles. To compare with other acrylic ranges, open the acrylic model paints overview.