For 3DM Version 1 PSP, please note that we recommend to apply silicone seal on the four corners and the two side walls of the PSP to extend the lifetime of the PSP. The thicker silicone seal the better – we recommend to apply up to half the height of the PSP.
It may not look pretty, but it helps protect the side walls. It will take a few hours for the silicone to cure. We use this silicone seal:
http://www.homedepot.com/p/GE-Silicone-II-2-8-oz-Clear-Window-and-Door-Caulk-GE500-3TG/100179996
3DM resins (ABS and Castable) are very strong. Please clean up right after printing. It is best for the 3DM material to not touch the middle material of the side wall.
Unless the 3DM PSP is used continuously without recycling the resin, the corners will be attacked when recycling the residual 3DM resins.