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Ultem hero 2x updated


ULTEM™ 9085 Filament

High performance PEI thermoplastic compatible with continuous carbon fiber

ULTEM™ 9085 Filament 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™ Filament brings Markforged’s CFR technology to a new realm of parts. ULTEM™ Filament is available in Markforged’s new 3200cc XL spool — four times larger than our standard spools.

Works With


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

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ULTEM™ 9085 Filament

1400 / 3200cc