Do You Need Glue or other adhesion on a PEI Plate?

I was wondering if You Need Glue or other adhesion on a PEI Plate.

So far for me, no works with fine with PLA and PEGT - prints stick fine. I wipe with ethyl alcohol 70% mix.

What can I do to avoid corners lifting up at a PEI plate? Printing Wood PLA at 190C bed is at 55C
Schermafbeelding 2023-08-13 142929

Use the brim, that will hold it down.

I’ve never used glue on any of the 3 black BL textured PEI plates I have or any previous PRUSA ones - using PLA and PETG. I do however occasionally add brims or rabbit ears.

For the cool plate I almost always add glue - Bambu Liquid Glue on previously printed parts - mainly to make the PLA parts easier to get off.

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