PEEK and ULTEM: High-Performance Industrial Filaments
Spec / Behavior PEEK Filament (PEEK Polymer Baseline)[a] ULTEM Filament (PEI Resin Baseline)[b] Polymer Family PolyEtherEtherKetone (PEEK), semi-crystalline Polyetherimide (PEI), amorphous (ULTEM is a trade name) Density 1.30 g/cm³ (crystalline) 1.27 g/cm³ Glass Transition Temperature…



















