RE: The Cryogrip Pro Glacier plate is an excellent cheaper alternative to the Satin plate with one minor caveat on the Core One
It's a bit strange, because I never had this problem with the MINI printer.
Maybe the sheet was well-used by the time you got into PETG, and not squeaky-clean anymore? Or maybe you only printed smaller parts on the Mini?
I actually use the smooth PEI sheet for small PETG parts with a narrow footprint, which don't stick well enough to the satin plate in my experience. No glue stick needed in that scenario -- the parts sit tight during printing and come off without excessive force afterwards.
RE: The Cryogrip Pro Glacier plate is an excellent cheaper alternative to the Satin plate with one minor caveat on the Core One
It's a bit strange, because I never had this problem with the MINI printer.
And I also printed a lot of PETG on smooth surfaces.
I'm not using a mini... but that's exactly what confused me. I've had it on multiple brands of sheets and only recently. I wash the sheets with warm soapy water. Occasionally, I'll use an 100% ETOH or Isopropanol pads to clean between prints, but only one plates that allow for that. Literally damaged a plate removing PETG on it... and tried everything... printing ABS on it, printing ASA on it, warming it up to 100C and then putting it in the freezer, etc. etc.