ThermaX™ PEI 9085 is a premium filament made using ULTEM™ 9085 resin from Sabic — a grade widely used in aircraft interiors for its flame, smoke, and toxicity (FST) performance. ULTEM PEI is an amorphous, high-performance polymer that combines excellent mechanical, thermal, and chemical resistance properties.
Benefits of ThermaX™ PEI 9085 Include:
High thermal properties, with a Tg of 186°C
Inherently flame-resistant with low smoke evolution and low smoke toxicity
Long-term hydrolytic stability
Excellent dimensional stability, low heat creep sensitivity, and a very low, uniform coefficient of thermal expansion create highly reproducible part-to-part dimensions
Exceptional strength and modulus, even at elevated temperatures
Good resistance to a broad range of chemicals, including automotive fluids, fully halogenated hydrocarbons, alcohols, and aqueous solutions
Stable dielectric constant and dissipation factor over a wide range of temperatures and frequencies
Filament Specifications:
1.75mm in diameter. 3DXTECH currently offers 250g, 500g, 1kg and 2kg spools in Black, Natural, and Scarlet.
Other: No cooling fan with print speeds of 20mm/s as a starting point
Heated Chamber: Recommended, a chamber helps reduce warping and improves layer adhesion
Supports: ThermaX™ HTS2 High-Temp Support works ideal for complex, high-temp materials just like this.
Drying Instructions: 150°C for 4 hours.
Annealing 3D Printed Parts:
If needed, parts printed using ULTEM™ may be annealed in a hot-air oven to reduce any printed-in stresses which may be present in the part. Printed-in stresses may occur in any plastic and may result in lower than expected mechanical properties. If this is an issue with your part, you can follow the simple 5-step ramp up/down process for annealing the ULTEM™ parts.
Step 1: Place printed parts in cool, room-temp oven.
Step 2: Set temp to 300°F and allow to stabilize for 1 hour.
Step 3: After 1 hour at 300°F, increase oven temp to 400°F and allow to stabilize 1 additional hour.
Step 4: After 1 hour at 400°F, reduce heat back to 300°F and allow to stabilize for 30 minutes.
Step 5: After 30 minutes, turn off oven heat and allow printed parts to return to room temp inside the oven as it cools.
ULTEM™ is a registered trademark of Sabic Innovative Plastics. 3DXTECH manufactures this filament using ULTEM™ 9085 resin.
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TESTED
Tested in our shop
Every product we list runs on our own machines before it earns a spot in the store. What you read here is what we measured — including the parts that failed.
