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ULTEM™ 9085 Filament

Ultra high performance PEI thermoplastic compatible with continuous carbon fiber

ULTEM™ 9085 is Markforged’s first high temperature printing polymer. It’s an extremely durable thermoplastic that exhibits excellent flame, smoke, and toxicity (FST) characteristics. Usable in production aerospace applications, ULTEM™ brings Markforged’s CFR technology to a new realm of parts. ULTEM™ is available in Markforged’s new 3200cc XL spool — four times larger than our standard spools.


  • High Temperature Tooling
  • Aircraft Interior Paneling
  • Aircraft Brackets, Handles, and Knobs
  • Custom Ducting
  • Composite Molds and Layup Tools

Works with:


*The “ULTEM™ and 9085 trademarks are used under license from SABIC, its affiliates or subsidiaries.