interesting - nothing about it’s chemical composition so a bit hard
to tell if it’s a nice burn out material or not…
The main advantage over other 3D filaments seems to be that it
melts, removing most of the material. For fine work I’d still be
burning out, and expect it to stink. Of course if the intention is to
melt out, then cast molten metal, the metal will effectively burn out
the plastic anyway so it can’t be too toxic at that stage…
If I was going to design something like this, I’d aim for a short
chain nylon or EVA - enough functional groups to give good low
temperature properties, but really fluid when molten.