I've seen these for before but equated them to my Power Sprayer. Are you able to control it down to very small spots or is this a wide (2" or so) angle sprayer only? If wide angle, it would probably work great for dye but not so much for any detail work.
The salespeople at the hobby supply store were surprised I wanted to use a craft tool for this application. However, when I went to a artist supply store, they were confident this model was sturdy enough for long term use. The parts appear to be stainless steel and the only real part requiring cleaning is the tip where the paint gets atomized and mixed. Just what you'd expect from a Paasche.