Ultem

Properties

Description

The ULTEM™ resin family of amorphous thermoplastic polyetherimide (PEI) materials offers outstanding elevated thermal resistance, high strength and stiffness, and broad chemical resistance. ULTEM resins are available in transparent and opaque custom colors, as well as glass filled grades.
Because of its very high glass transition temperature of 217°C (for comparison, PLA has a glass transition temperature of 60°C), working with the material requires more specialized hardware than what’s found in most 3D printers. The extruder has to reach at least 350°C and the bed must reach 150°C; an enclosed and heated build chamber is also necessary to maintain dimensional accuracy.
Ultem 1010 has NSF 51 food-contact certification (the only FDM material that has this certification) and is biocompatible (ISO 10993/USP Class VI certifications).
More info on Ultem at 3dprinting.com.