CARBONX PEI 9085+CF • 3DXTECH • REV1 TECH
3DXTech CarbonX™ PEI 9085+CF CF Reinforced Ultem 9085 — 186°C Tg · 8,600 MPa Modulus · FAA FST Rated
CF Reinforced Ultem™ 9085 — 186°C Tg · 8,600 MPa Modulus · FAA FST Rated
3DXTech’s CarbonX PEI 9085+CF combines 15% high-modulus carbon fiber with Sabic’s Ultem™ 9085 — the FAA-approved Flame/Smoke/Toxicity (FST) rated resin used in aerospace cabin interiors. 8,600 MPa tensile modulus, 186°C Tg, 165°C HDT. All-metal hot end ≥390°C and hardened steel nozzle required. Black 1.75mm. Made in Grand Rapids, Michigan.
Also available in 750g reels (Bambu AMS compatible). Larger spools by inquiry.
Currently sold out at vendor — Rev1 may have stock. Contact Rev1 to confirm availability.
WHY CARBONX PEI 9085+CF
186°C Tg. 8,600 MPa Modulus. FAA FST Base Resin.
CarbonX™ PEI 9085+CF reinforces the aerospace industry’s preferred FST-rated resin with 15% high-modulus carbon fiber — tripling tensile modulus to 8,600 MPa while retaining Sabic Ultem™ 9085’s FAA-approved Flame/Smoke/Toxicity compliance. 186°C Tg, 165°C HDT. One filament for structural stiffness and FST certification.
186°C Glass Transition
Exceeds standard PEI 9085 (~170°C) through CF reinforcement. Survives aerospace cabin operating conditions and sustained elevated-temperature industrial use.
8,600 MPa Tensile Modulus
15% high-modulus CF delivers ~3× the stiffness of unfilled PEI 9085 (~2,800 MPa). Structural rigidity suitable for load-bearing aerospace and defense components.
FAA FST Base Resin
Sabic Ultem™ 9085 base meets FAR 25.853 and OSU 65/65 Flame/Smoke/Toxicity requirements — the standard for commercial aircraft cabin interior materials.
Made in Michigan
3DXTech formulates CarbonX PEI 9085+CF in Grand Rapids, USA with in-house quality control. Domestic manufacture for aerospace and defense supply chains.
PRINTING WITH CARBONX PEI 9085+CF
Ultem™ 9085 with CF — Aerospace Stiffness and Thermal Performance
CarbonX PEI 9085+CF elevates the already-demanding PEI 9085 print profile with 15% carbon fiber reinforcement — tripling tensile modulus to 8,600 MPa while retaining the Sabic Ultem™ 9085 FST certification that makes PEI 9085 the preferred FFF material for aerospace interior components. A hardened steel nozzle is non-negotiable — CF is highly abrasive and will rapidly wear brass.
- Extruder Temp 365–390°C — all-metal hot end required
- Bed Temp 140–160°C — PEI or garolite build surface recommended
- Chamber Temp 90–140°C recommended — heated enclosure strongly advised
- Nozzle Hardened steel ≥0.4mm — MANDATORY. Standard brass will wear rapidly against CF.
- Layer Height 0.25mm or higher recommended to minimize CF bridging risk
- ⚠ Drying Critical 120°C / 4 hours minimum before every print session — PEI 9085 absorbs moisture rapidly. Wet filament causes popping, rough surfaces, and reduced layer adhesion at 390°C. Store sealed with fresh desiccant immediately after drying.
THERMAL DATA
186°C Tg — Highest of Any Standard FFF Material Except PEEK and PEKK
Four thermal milestones defining CarbonX™ PEI 9085+CF’s operating envelope — verified from 3DXTech TDS data, ISO test specimens.
DSC measurement. CF reinforcement raises Tg above unfilled PEI 9085’s ~170°C. Highest Tg of any standard FFF engineering polymer except PEEK (143°C unfilled) and PEKK-A (165°C). Parts retain structural integrity at temperatures that defeat standard engineering polymers.
Sustained structural use at significantly elevated temperatures. Suitable for aerospace cabin environments, defense electronics enclosures, and high-temp industrial tooling where standard engineering plastics would creep or deflect.
All-metal hot end mandatory — PTFE-lined components will degrade at these temperatures. Both dual-zone and single-zone hot ends are compatible provided they are rated to 390°C+. E3D V6, Slice Mosquito, Dragon HF confirmed compatible with upgrade kits.
Critical — PEI 9085 absorbs moisture faster than most engineering filaments. Dry every spool before printing. Print from a heated dry-box when possible. Re-seal with fresh desiccant after every session.
WHERE IT WORKS
FST-Rated CF Stiffness — Aerospace, Defense, High-Temp Industrial
CarbonX™ PEI 9085+CF is chosen when applications simultaneously require FAA FST compliance, maximum structural stiffness, and sustained high-temperature performance — a combination no other FFF filament delivers.
Aerospace Interior Components
FAA FST-rated Sabic Ultem™ 9085 base resin meets FAR 25.853 and OSU 65/65 for commercial aircraft cabin interiors. CF reinforcement adds structural rigidity for seat brackets, cabin fixtures, and interior load-bearing parts where unfilled PEI 9085 lacks stiffness.
Defense & High-Temp Structural
165°C HDT enables use in elevated-temperature defense electronics enclosures and structural assemblies. CF reinforcement provides the stiffness needed for load-bearing defense hardware. 186°C Tg exceeds most military electronics thermal requirements.
Industrial High-Temp Tooling
8,600 MPa tensile modulus combined with 186°C Tg supports precision fixtures, test jigs, and production tooling in environments where standard engineering plastics (PETG, ABS, PC) fail due to creep, deflection, or temperature exceedance.
SPECIFICATIONS
CarbonX™ PEI 9085+CF — Full Technical Data
Source: 3DXTech PEI CF15 TDS. ISO-standard test specimens, printed XY flat at 390°C extrusion, 140°C bed. 1.75mm black filament.
Material Properties
| Polymer | Sabic Ultem™ 9085 + 15% Carbon Fiber |
| Diameter | 1.75mm |
| Color | Black (only) |
| Glass Transition (Tg) | 186°C (DSC) |
| HDT (0.45 MPa, ISO 75) | 165°C |
| Tensile Strength | 93 MPa (ISO 527) |
| Tensile Modulus | 8,600 MPa (ISO 527) |
| Flexural Strength | 120 MPa (ISO 178) |
| Flexural Modulus | 8,450 MPa (ISO 178) |
| Elongation at Break | 2% (ISO 527) |
| Density | 1.39 g/cc (ISO 1183) |
| Surface Resistance | >10⁹ Ω/sq (standard CF, non-ESD) |
| FST Rating | FAA FST (base resin) — FAR 25.853, OSU 65/65 |
Print Parameters
| Extruder Temp | 365–390°C |
| Bed Temp | 140–160°C |
| Chamber Temp | 90–140°C (recommended) |
| Nozzle | Hardened steel ≥0.4mm (MANDATORY) |
| Layer Height | 0.25mm or higher |
| Drying Protocol | 120°C / 4 hr minimum (critical) |
| Hot End Requirement | All-metal, rated ≥390°C |
Availability
| Spool Sizes | 250g, 500g, 750g, 2kg |
| 250g Price | $98 |
| 500g Pricing | Contact for pricing |
| 2kg Pricing | Special order — MOQ 10 units |
| 750g (AMS) | Contact — Bambu AMS compatible |
| Lead Time | Varies — contact Rev1 to confirm |
| Origin | Grand Rapids, MI, USA |
SPOOL SELECTION
250g Available. 500g and 2kg by Inquiry.
CarbonX™ PEI 9085+CF is available in Black (1.75mm). 250g is the primary stocked size. Larger spools (500g, 750g, 2kg) are available by inquiry — currently showing as sold out at vendor; contact Rev1 for stock confirmation.
- Primary stocked size
- 1.75mm / Black
- Qualification and short production runs
- 1.75mm / Black
- Contact Rev1 for availability
- 750g also available (Bambu AMS)
- High-volume production runs
- Minimum order quantity: 10 units
- Contact Rev1 for pricing
PRODUCT IMAGES
CarbonX™ PEI 9085+CF — 250g Black 1.75mm Spool
3DXTech CarbonX PEI 9085+CF carbon fiber reinforced Ultem™ 9085 filament for high-performance FFF printing.
MATERIAL CARE
Drying Is Critical — PEI 9085 Absorbs Moisture Rapidly
PEI 9085+CF absorbs moisture faster than most engineering filaments. A consistent drying and storage protocol is essential before and after every print session.
Dry Before Every Session
120°C for 4 hours minimum. No exceptions — even a sealed spool opened recently benefits from a full drying cycle. PEI 9085 absorbs moisture faster than PEKK, PEEK, or PA12.
Print From the Dryer
For best results, print directly from a heated dry-box at 80–90°C. Ambient humidity re-absorbs into PEI 9085 within hours — extended print sessions require in-line drying.
Seal Immediately After Use
Return unused filament to an airtight container with fresh desiccant immediately after printing. Do not leave open spools exposed overnight — even indoors in a conditioned space.
Recognize Wet Filament Symptoms
Popping or crackling at 390°C, rough surface texture, bubbles in melt, reduced layer adhesion, or steam from nozzle are signs of moisture contamination. Re-dry fully and restart.
HOW IT COMPARES
CarbonX™ PEI 9085+CF vs. Commonly Evaluated Alternatives
Buyers evaluating PEI 9085+CF typically compare against unfilled PEI 9085 for established baseline performance, CarbonX PEEK+CF10 for maximum thermal performance, and Stratasys ULTEM™ 9085 for platform-locked FST compliance.
3DXTech / Rev1 Tech
3DXTech ThermaX / Generic
3DXTech
Stratasys (Fortus-locked)
REEL SPECIFICATIONS
3DXTech Standard Reel Dimensions — All Spool Sizes
3DXTech uses standardized reel geometries across the CarbonX product line. View the reel specs chart for exact outer diameter, hub diameter, width, and spool weight for material management system compatibility.
3DXTECH QUALITY
Sabic Ultem™ 9085 Resin + CF — Made in Michigan
Every spool of CarbonX™ PEI 9085+CF starts with authentic Sabic Ultem™ 9085 resin — the same base polymer used in Stratasys ULTEM™ 9085 and certified by Sabic for FAR 25.853 / OSU 65/65 FST compliance. 3DXTech compounds 15% high-modulus carbon fiber in-house at Grand Rapids, MI.
Sabic Ultem™ 9085 Base
The same resin used in aerospace-certified Stratasys ULTEM™ 9085 parts. Sabic’s Ultem™ 9085 carries FAR 25.853 and OSU 65/65 FST certification — the standard for commercial aircraft cabin interior components. Available on open-platform hardware at a fraction of Fortus system cost.
Made in Grand Rapids, MI
Filament extruded and wound in-house at 3DXTech’s Michigan facility with direct process control. Domestic manufacture for aerospace and defense supply chains requiring US-origin materials.
Full TDS Available
Complete processing parameters, ISO mechanical properties, and thermal data published in the 3DXTech PEI CF15 Technical Data Sheet. Available via vendor product page for qualification purposes.
RESOURCES
Downloads & Technical Support
Everything you need to qualify and print CarbonX™ PEI 9085+CF with confidence.
WHY REV1 TECH
Authorized 3DXTech Reseller. Industrial AM Specialists.
Rev1 Technologies is an authorized 3DXTech reseller headquartered in Auburn Hills, MI, with direct technical expertise in high-performance FFF materials and the industrial printers that run them — including PEI 9085+CF at 365–390°C.
Authorized Reseller
Every spool ships through the authorized channel. MAP pricing guaranteed. Single-channel license compliance — not a grey-market distributor.
Platform Expertise
Rev1 carries the high-temp industrial printers validated for PEI 9085+CF (365–390°C). CreatBot F160-PEEK, PEEK-300, and open-platform builds — our team has run them. If you need a printer recommendation alongside your spool order, ask us.
Pre-Sales Technical Support
Questions about print settings, printer selection, or qualifying PEI 9085+CF for an aerospace or defense application? Contact Rev1 before you order — that conversation is free.
FREQUENTLY ASKED
CarbonX™ PEI 9085+CF — Buyer Questions Answered
What is CarbonX™ PEI 9085+CF?
CarbonX™ PEI 9085+CF is 3DXTech’s 15% high-modulus chopped carbon fiber reinforced Sabic Ultem™ 9085 filament. Available in Black 1.75mm, it delivers 8,600 MPa tensile modulus, 186°C Tg, and retains the FAA-approved Flame/Smoke/Toxicity (FST) rating of the Ultem™ 9085 base resin. A hardened steel nozzle is mandatory — CF is highly abrasive. Made in Grand Rapids, Michigan.
What are the mechanical properties of PEI 9085+CF?
From the 3DXTech TDS (ISO test specimens, printed XY flat at 390°C): Tensile Strength 93 MPa, Tensile Modulus 8,600 MPa, Flexural Strength 120 MPa, Flexural Modulus 8,450 MPa, Elongation at Break 2%, Glass Transition (Tg) 186°C (DSC), HDT 165°C (ISO 75 at 0.45 MPa), Density 1.39 g/cc. Surface resistance >10⁹ Ω/sq (standard CF, non-ESD).
Is CarbonX PEI 9085+CF FAA certified?
The Sabic Ultem™ 9085 base resin meets FAR 25.853 and OSU 65/65 Flame/Smoke/Toxicity (FST) requirements — the standard for commercial aircraft cabin interior materials. Printed FFF parts require individual qualification and testing for certified aircraft use; the FST compliance of the base resin supports that qualification pathway. 3DXTech maintains Sabic certification documentation via the product page.
What printer do I need for PEI 9085+CF?
You need: (1) an all-metal hot end rated to at least 390°C — PTFE-lined hot ends will degrade at these temperatures; (2) a heated bed capable of 140–160°C; (3) a hardened steel nozzle ≥0.4mm — CF is highly abrasive; (4) a heated enclosure (90–140°C recommended). Rev1-recommended platforms include the CreatBot F160-PEEK and PEEK-300. Bambu X1E is compatible with the all-metal hot end upgrade and 750g spool.
How do I dry PEI 9085+CF?
Dry at 120°C for a minimum of 4 hours before every print session. PEI 9085 absorbs moisture faster than most engineering filaments — including PEKK and standard PA12. Print from a heated dry-box when possible. Reseal in an airtight container with fresh desiccant immediately after printing. Signs of wet filament: popping at nozzle, rough surface finish, reduced layer adhesion, visible steam.
How does PEI 9085+CF compare to unfilled PEI 9085?
CarbonX PEI 9085+CF delivers approximately 3× the tensile modulus of unfilled PEI 9085 — 8,600 MPa vs. ~2,800 MPa. Glass transition is also elevated from ~170°C (unfilled) to 186°C (CF-reinforced). Both retain FAA FST compliance from the Ultem™ 9085 base resin. The trade-off: CF reinforcement requires a hardened nozzle and reduces elongation at break to 2% (vs. ~5–7% unfilled), making CF parts more brittle under impact.
How does PEI 9085+CF compare to CarbonX PEEK+CF10?
PEI 9085+CF wins on FST compliance — the Ultem™ 9085 base meets FAA FST requirements where PEEK+CF10 does not carry an FST rating. PEEK+CF10 wins on ultimate thermal performance: 217°C Tg and ~10,000 MPa tensile modulus vs. PEI 9085+CF’s 186°C and 8,600 MPa. If your application requires FAA FST compliance, PEI 9085+CF is the correct choice. If maximum stiffness or Tg is the priority and FST is not required, PEEK+CF10 wins.
What is the price and availability of PEI 9085+CF?
250g / 1.75mm / Black is $98 and is the primary stocked size. 500g and 2kg are available by inquiry; 2kg requires MOQ-10 special order. 750g reels are available for Bambu AMS compatibility (contact for pricing). The product currently shows as sold out at 3DXTech’s vendor site — contact Rev1 directly to confirm current stock and lead time before ordering.