Pei polyetherimide is a strong rigid plastic that withstands high temperatures and offers excellent electrical insulation over a wide range of temperatures.
Pei sheet on glass.
Purchase a sheet of 0 03 0 04 0 75mm 1mm thick pei thinner can be used but it is more difficult to apply exactly flat to your surface.
On one i purchased a sheet of 0 3mm thick self adhesive pei and stuck it down to the glass.
Laminate your sheet of pei using 3m 468mp 1 adhesive transfer tape to a glass mirror print bed keeping in mind that 3m 468mp is a very tacky tape that is prone to clumping.
Pei polymer is extruded by ensinger in sheet and rod shapes using sabic s ultem resin.
Made in the usa.
Been printing on it since its great to be fair though the bare mirror also prints quite well but it needs more cleaning i used windex to clean it and then wipe with ipa to get the windex residue off.
Pei is easily cut to size by scoring with a hobby knife.
Borosilicate glass abs and pla filaments along with many other materials print directly on to pei surface without the need for additional adhesives tapes or slurry.
Unfilled pei thermoplastic is translucent and amber in color with exceptional mechanical thermal and electrical properties.
Single 1mm thick sheet installs quickly on top of existing flat build platforms e g.