ULTEM 9085
ULTEM 9085 is a high-strength, flame-retardant polyetherimide (PEI) thermoplastic. It’s widely used in Fused Deposition Modeling (FDM) 3D printing due to its excellent mechanical properties and compliance with industry regulations.
Benefits
High strength-to-weight ratio
Excellent flame, smoke, and toxicity (FST) rating, compliant with OSU 55/55
Inherent flame resistance (UL94 V-0)
Heat resistance up to ~170°C (338°F)
Good chemical and impact resistance
Fire Protection of Railway Vehicles (EN45545-2)
Limitations
High cost material
Needs high-temp industrial 3D printers
Warping and adhesion issues can arise if not printed under controlled conditions
Post-processing may be required
Typically available only in black or natural (amber)
Almost no material specific support materials
Industries
ULTEM 9085 is ideal for aerospace, marine, and land vehicles as it has a high strength to weight ratio and FST (flame, smoke, and toxicity class).







