100% real Ultem1000（ PEI）Polyetherimide Amber color
1. PEI (Polyetherimide) sheets provide a 3D printing build surface that requires no tape, slurry, or adhesive.
2. ABS and PLA both stick extremely well to the surface, which eliminates the need for support rafts used for better adhesion.
3. Stable using temperature is 150 degree.
4. It helps to wipe the surface down with isopropyl alcohol, methyl alcohol, or soap in between prints. This will ensure the PEI is clean, and help adhesion. 5. Light sanding with 5000 grit paper will also give the PEI sheet more life.