I pop my PEI bed with finished print into the freezer for about 5 minutes. Pops right off, every time. No tape, no glue, I just wash the bed with soapy water between prints.
Using G10 can recommend if you scratch it up you can just use the other side and if you have a metal probe you can add aluminium tape to the side you aren’t using and get full functionality.
Fourth rule… painters tape as bed surface will save your PEI sheets and holds PETG really well.
Or G10/Garolite
Or just use a textured PEI plate at the proper bed temperature. There is very little need for special adjuncts to print PETG.
I pop my PEI bed with finished print into the freezer for about 5 minutes. Pops right off, every time. No tape, no glue, I just wash the bed with soapy water between prints.
Using G10 can recommend if you scratch it up you can just use the other side and if you have a metal probe you can add aluminium tape to the side you aren’t using and get full functionality.