Hi! I'm looking for a way to dye a WSF print of a airway model used for training of anaesthesist trainees. Meaning, I have a tubular kind of print with small tubes and over a dozen exits in white, non-polished s&f plastic which I have to dye pink/red. I figured I'll have to plunge the model in a suitable paint so it gets dyed on the inside (which is what we need). Does anybody have experience with plunge painting prints and/or especially painting non-polished s&f prints? Any help would be much appreciated.
Try a textile dye for nylon, Jacquard iDye Poly or similar. (Even coloring and/or reproducible hue may be not easy to achieve, but probably not strictly necessary if you are modeling live tissue). Searching this forum for "textile" and/or "dye" should bring up several older threads that reported results for various brands and colors.
you can find a great tutorial on dyeing Nylon by one of our shopowners here http://www.instructables.com/id/How-to-Dye-Your-Nylon-3D-Prints/