I recently had to print with Polycarbonate on my Taz 5. I needed to apply UHU gluestick and run the bed at 100°C in order to get the PC to stick to the PEI. How do I remove the old glue stick from the PEI?
If I am not mistaken the glue stick is water soluble, so water should work. I don’t use glue stick on my PEI but I have cleaned mine with isopropyl alcohol and even Acetone with no ill effect on the PEI.
from what I understand, in the long run, the alcohol will make the PEI brittle. so use it diluted is the solution I have heard.