CARBONX PEEK+CF20 • 3DXTECH • REV1 TECH
3DXTech CarbonX™ PEEK+CF20 High-Stiffness PEEK for Extreme Environments
High-Stiffness PEEK for Extreme Environments
3DXTech’s CarbonX PEEK+CF20 delivers maximum stiffness with 20% chopped high-modulus carbon fiber reinforcement — raising tensile modulus to 10,100 MPa, flexural modulus to 11,200 MPa, and heat deflection to 305°C. ESD-safe surface resistance below 10⁶ Ω/sq makes it suitable for electronics and semiconductor environments. For aerospace, defense, and precision tooling applications where CF10 isn’t stiff enough. Made in Grand Rapids, Michigan.
Lead time varies. Contact Rev1 to confirm availability.
WHY CARBONX PEEK+CF20
10,100 MPa Modulus. 305°C HDT. ESD-Safe. Made in USA.
CarbonX™ PEEK+CF20 is 3DXTech’s highest-CF-loading PEEK filament — 20% high-modulus chopped carbon fiber delivers 2.8× the stiffness of unfilled PEEK with a 305°C heat deflection temperature and ESD-safe surface resistance below 10⁶ Ω/sq. For electronics assembly tooling, semiconductor wafer handling, and structural parts in the most demanding thermal environments.
2.8× Stiffer Than Unfilled PEEK
20% high-modulus CF raises tensile modulus to 10,100 MPa and flexural modulus to 11,200 MPa — significantly stiffer than CF10 (8,100 MPa). Minimum deflection under sustained mechanical load at elevated temperatures.
305°C HDT
Heat deflection temperature at 0.45 MPa. Exceeds even CF10’s 265°C. Parts survive environments that would deform nylon, PETG, polycarbonate, or PEI 9085 outright.
ESD-Safe: SR <10⁶ Ω/sq
Surface resistance below 10⁶ Ω/sq per ASTM D257. Safe for electronics assembly, PCB handling fixtures, semiconductor tooling, and electrostatic-sensitive component environments.
Made in USA — ISO 9001
Extruded and wound in-house at 3DXTech’s Grand Rapids, MI facility under ISO 9001:2015 certification. Full lot traceability throughout filament fabrication.
PRINTING WITH CARBONX PEEK+CF20
PEEK+CF20 -- Maximum CF Loading, Maximum Nozzle Wear Rate
CarbonX PEEK+CF20 requires a hardened steel nozzle — standard brass will wear within a single spool at 20% CF loading. Beyond the nozzle requirement, process mirrors CF10: industrial hardware, 420°C-capable hot end, and heated chamber deliver reliable results. Print temperature range is 410–430°C, slightly higher than CF10.
- Extruder Temp 410–430°C — all-metal hot end required
- Bed Temp 130–150°C — PEI or garolite build surface
- Chamber Temp ≥70°C — heated chamber strongly recommended
- Layer Height 0.25mm, 100% infill, +/- 45° recommended for maximum stiffness
- Nozzle Hardened steel ≥0.4mm — MANDATORY. 20% CF loading is highly abrasive; standard brass wears rapidly.
- Drying 120°C / 4 hr minimum before every print session
- ⚠ Nozzle Warning At 20% CF loading, abrasive wear on a brass nozzle is accelerated versus CF10. Hardened steel, ruby-tipped, or sapphire nozzles are required. 0.4mm minimum diameter — smaller nozzles are more prone to CF bridging and clogging at this loading level.
THERMAL DATA
305°C HDT — Structural Integrity Where Other Materials Fail
Four thermal milestones defining CarbonX™ PEEK+CF20’s operating envelope. 20% CF loading raises HDT to 305°C — 40°C above CF10 and far beyond any nylon, PETG, or polycarbonate option.
HDT at 0.45 MPa. 40°C above CarbonX PEEK+CF10’s 265°C. The highest heat deflection value in the 3DXTech filament catalog. Carbon fiber reinforcement at 20% loading suppresses creep at temperatures approaching PEEK’s melt point of 343°C.
Tg of the PEEK matrix. Semi-crystalline PEEK retains significant stiffness well above Tg due to crystalline phase and 20% CF reinforcement — the 305°C HDT directly demonstrates this behavior.
Estimated continuous-use temperature. High CF loading provides additional resistance to thermal creep relative to CF10. Consult TDS for application-specific thermal requirements.
Required before every session. PEEK matrix requires consistent drying before extrusion at 410–430°C. Pre-drying is mandatory for all PEEK-family filaments regardless of storage conditions.
CHEMICAL RESISTANCE
Full PEEK Chemical Resistance at 20% CF Loading
CarbonX™ PEEK+CF20’s PEEK matrix maintains the same broad chemical resistance as unfilled PEEK. The high CF content adds resistance to dimensional creep under combined chemical and mechanical stress. Resistant to virtually all organic solvents, fuels, hydraulic fluids, and industrial process chemicals.
Consult 3DXTech CarbonX® PEEK+CF20 TDS for complete chemical compatibility data before use in fluid-contact applications.
SPECIFICATIONS
CarbonX™ PEEK+CF20 — Full Technical Data
Source: 3DXTech CarbonX® PEEK+CF20 TDS. ISO-standard test specimens. 1.75mm black filament.
Material Properties
| Polymer | PEEK + 20% Carbon Fiber (CF20) |
| Diameter | 1.75mm |
| Color | Black (only) |
| Glass Transition (Tg) | 143°C |
| HDT (0.45 MPa, ISO 75) | 305°C |
| Continuous Use Temp | ~250°C |
| Surface Resistance | <10⁶ Ω/sq (ASTM D257) |
| Moisture Absorption | Near-zero |
| Tensile Strength | 126 MPa (ISO 527) |
| Tensile Modulus | 10,100 MPa (ISO 527) |
| Flexural Strength | 145 MPa (ISO 178) |
| Flexural Modulus | 11,200 MPa (ISO 178) |
| Tensile Elongation | 1.9% |
| Density | 1.39 g/cm³ (ISO 1183) |
Print Parameters
| Extruder Temp | 410–430°C |
| Bed Temp | 130–150°C |
| Chamber Temp | ≥70°C recommended |
| Layer Height | 0.25mm, 100% infill, +/- 45° |
| Drying Protocol | 120°C / 4 hr minimum |
| Nozzle | Hardened steel ≥0.4mm (MANDATORY) |
| Hot End Requirement | All-metal, rated ≥430°C |
Availability
| Spool Sizes | 500g |
| 500g Price | $375 |
| SKU | 3DXT-CX-PEEKCF20-175-500 |
| Lead Time | Varies — contact Rev1 to confirm |
| Quality Standard | ISO 9001:2015 Certified |
| Origin | Grand Rapids, MI, USA |
SPOOL SELECTION
500g In Stock. One Size, One Price.
CarbonX™ PEEK+CF20 is available in Black (1.75mm) in a single 500g spool size at $375. Contact Rev1 to confirm current stock availability.
- 1.75mm Black filament
- SKU: 3DXT-CX-PEEKCF20-175-500
- Reel #2–#7 — 198mm dia.
PRINT QUALITY
Production-Grade Output on the Right Equipment
CarbonX™ PEEK+CF20 produces parts with fine surface detail and strong interlayer adhesion when printed on a properly configured industrial platform. High CF loading results in a matte, uniform finish and low warpage in well-designed geometries.
COMPATIBLE PLATFORMS
Requires an Industrial-Grade 3D Printer
CarbonX PEEK+CF20 demands an all-metal hot end rated to 430°C+, a heated enclosure, AND a hardened steel nozzle. Any open-platform printer meeting these requirements can run PEEK+CF20.
CreatBot F160-PEEK
Purpose-built PEEK platform with dual all-metal hot ends and integrated chamber heating. PEEK+CF20 compatible. Rev1’s top recommendation for first-time PEEK CF20 adopters.
Rev1 RecommendedCreatBot PEEK-300
300mm build volume, 420°C hot end rating, 200°C heated chamber. PEEK+CF20 compatible. Production-oriented platform for larger part geometries.
Rev1 RecommendedCreatBot F430
Quad-nozzle large-format industrial printer with multi-material capability. PEEK+CF20 compatible. Supports PEEK CF20 plus support materials for complex geometries.
Rev1 RecommendedAny Open-Platform Printer
Minimum: 430°C+ all-metal hot end • 130–150°C heated bed • ≥70°C enclosure • hardened steel nozzle ≥0.4mm (MANDATORY for CF20).
WHERE IT WORKS
Where Maximum CF Loading Wins
When PEEK+CF10’s stiffness isn’t enough, ESD safety is required, or HDT must exceed 300°C — CarbonX PEEK+CF20 delivers.
Electronics Assembly Tooling
ESD-safe SR below 10⁶ Ω/sq makes PEEK+CF20 safe for PCB handling fixtures, component trays, and assembly jigs in electrostatic-sensitive environments.
Semiconductor Wafer Handling
Precision tooling for wafer handling requires dimensional stability (low CTE), near-zero moisture absorption, chemical resistance, and ESD safety — all delivered by PEEK+CF20.
Aerospace Structural Parts
Brackets, ducting, and load-bearing components requiring maximum stiffness at temperatures up to 250°C. 11,200 MPa flexural modulus minimizes deflection under sustained load.
Precision Fixtures & Jigs
Low elongation (1.9%) and very high modulus make CF20 ideal for stiffness-critical CMM fixtures, inspection jigs, and dimensional references where any deflection is unacceptable.
Defense & High-Reliability
Structural components requiring maximum stiffness, 305°C thermal performance, near-zero moisture absorption, and inherent PEEK flame resistance.
Oil & Gas Downhole
Downhole tools, valve components, and manifolds requiring combined chemical resistance, stiffness at elevated temperatures, and high HDT performance.
MATERIAL CARE
Moisture Is the Enemy. A Proper Protocol Eliminates It.
PEEK+CF20 has near-zero moisture absorption — the carbon fiber does not change this behavior. However, the PEEK matrix still requires consistent drying before printing at 410–430°C. Follow this protocol every session.
Dry Before Every Session
120°C minimum / 4 hours minimum. No exceptions — even a sealed spool that has been open for a few days benefits from a fresh drying cycle.
Print From the Dryer
For best results, print directly from a heated dry-box or dryer system. Ambient humidity will re-absorb into the filament during extended print runs.
Store Sealed With Desiccant
Return unused filament to an airtight bag or container with fresh desiccant immediately after printing. Long-term storage in original sealed packaging is acceptable.
Recognize Wet Filament Symptoms
Popping or crackling during extrusion, rough surface texture, reduced layer adhesion, and visible bubbling in the melt are signs of moisture contamination. Re-dry and restart.
HOW IT COMPARES
CarbonX™ PEEK+CF20 vs. Commonly Evaluated Alternatives
Buyers evaluating CarbonX PEEK+CF20 typically compare against CF10 for a more ductile lower-cost option, PEI 9085 for a lower-temperature alternative, and generic PEEK for a non-ESD baseline.
3DXTech / Rev1 Tech
3DXTech
3DXTech
Various
3DXTECH QUALITY
Manufactured in Michigan. Certified to ISO 9001:2015.
Every spool of CarbonX™ PEEK+CF20 is produced in-house at 3DXTech’s Grand Rapids, MI facility under ISO 9001:2015 certification. 20% high-modulus chopped carbon fiber compounded with PEEK resin, with full lot traceability throughout filament fabrication.
ISO 9001:2015 Certified
Production under a certified quality management system. Lot traceability and process controls throughout filament fabrication ensure consistent mechanical properties.
Made in Grand Rapids, MI
Filament extruded and wound in-house at 3DXTech’s Michigan facility. Direct factory quality control — not overseas commodity production.
Technical Data Sheet Available
Full processing parameters, mechanical properties, and chemical resistance data published in the CarbonX® PEEK+CF20 TDS. Available for download below.
RESOURCES
Downloads & Technical Support
Everything you need to qualify and print CarbonX™ PEEK+CF20 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 printers that run them.
Authorized Reseller
Every spool ships direct from the authorized channel. MAP pricing guaranteed. Single-channel license compliance — not a grey-market distributor.
Platform Expertise
Rev1 carries the industrial printers validated for PEEK. If you need guidance on which platform to match with PEEK+CF20, our team has run them.
Pre-Sales Technical Support
Questions about print settings, printer selection, or qualifying PEEK+CF20 for a specific application? Contact Rev1 before you order — that conversation is free.
FREQUENTLY ASKED
CarbonX™ PEEK+CF20 — Buyer Questions Answered
What is CarbonX™ PEEK+CF20?
CarbonX™ PEEK+CF20 is 3DXTech’s 20% high-modulus chopped carbon fiber reinforced PEEK filament. It delivers 10,100 MPa tensile modulus, 11,200 MPa flexural modulus, 305°C heat deflection temperature, and ESD-safe surface resistance below 10⁶ Ω/sq. Available in Black 1.75mm, 500g spool only. A hardened steel nozzle is mandatory — 20% CF loading is highly abrasive.
What temperatures does CarbonX™ PEEK+CF20 require?
CarbonX™ PEEK+CF20 requires an extruder temperature of 410–430°C and a bed temperature of 130–150°C. A heated enclosure at ≥70°C is strongly recommended. Dry at 120°C for 4 hours minimum before every print session. All-metal hot end rated to 430°C+ is required.
Is CarbonX™ PEEK+CF20 ESD-safe?
Yes. CarbonX™ PEEK+CF20 has a surface resistance below 10⁶ Ω/sq per ASTM D257, qualifying it as ESD-safe. This makes it suitable for electronics assembly fixtures, PCB handling trays, semiconductor tooling, and any environment where electrostatic discharge must be controlled. Standard PEEK and PEEK+CF10 are not ESD-safe.
How does PEEK+CF20 compare to PEEK+CF10?
PEEK+CF20 has nearly double the carbon fiber loading versus CF10 (20% vs. 10%), resulting in significantly higher stiffness (tensile modulus 10,100 vs. 8,100 MPa; flexural modulus 11,200 vs. ~8,300 MPa) and a higher HDT (305°C vs. 265°C). CF20 also adds ESD safety. Trade-off: lower elongation (1.9% vs. 3%), higher print temperature (410–430°C vs. 380–410°C), and higher price. Choose CF20 when maximum stiffness, 300°C+ HDT, or ESD safety is required.
What applications use CarbonX™ PEEK+CF20?
CarbonX™ PEEK+CF20 is used in electronics assembly tooling, semiconductor wafer handling fixtures, aerospace structural brackets, CMM fixtures and inspection jigs, defense structural parts, and oil & gas downhole tools. Any application requiring maximum stiffness, 305°C thermal performance, ESD safety, and near-zero moisture absorption.
Is CarbonX™ PEEK+CF20 chemically resistant?
Yes. The PEEK matrix maintains full chemical resistance — the CF reinforcement does not affect the chemical compatibility profile. CarbonX™ PEEK+CF20 is resistant to virtually all organic solvents, fuels, hydraulic fluids, and industrial process chemicals. Consult the TDS for specific fluid compatibility data.
Why is elongation lower in PEEK+CF20 versus CF10?
Higher CF loading increases stiffness and reduces ductility. PEEK+CF20 has 1.9% elongation versus 3% for CF10 — the material is more brittle but significantly stiffer. For applications where stiffness and dimensional stability under load are paramount (fixtures, jigs, structural brackets), lower elongation is a feature, not a drawback. For applications requiring some toughness or impact resistance, CF10 or unfilled PEEK may be more appropriate.
What spool sizes are available for PEEK+CF20?
CarbonX™ PEEK+CF20 is available in a single 500g spool size at $375, Black (1.75mm) only. Unlike PEEK+CF10 which offers 250g through 2kg, CF20 is a specialty high-performance grade available in 500g standard production quantity. Contact Rev1 to confirm current stock availability and lead time.