Hi Sorry to take so long to reply!! Glass beds certainly give an ideal flat surface to print on but can be difficult to remove because of this I have been using a thin 1mm sheet of Tufnol (Garolite in the USA) with the surface shine rubbed of wih 240 grit sandpaper and clamped to the glass bed stuck models can be easily removed by just flexing the Tufnol sheet. Most filament materials stick readily to Tufnol with the help of a liitle adhesive. for PLA and PET I use PVA glue stick, for ABS ABS milk and for Nylon just clean the Tufnol with Acetone. I hope this helps