PAEK ULTRA-POLYMER • 3DXTECH • REV1 TECH
3DXTech ThermaX™ PEKK-A Industrial PEKK-A Filament — Easier to Print Than PEEK
Industrial PEKK-A Filament — Easier to Print Than PEEK
ThermaX™ PEKK-A is a PAEK-family ultra-polymer with a 162°C glass transition, 240–260°C continuous-use capability, and a wider processing window than PEEK — printing at 345–375°C with inherent UL 94 V-0 flame resistance and broad chemical inertness.
Lead time varies. Contact Rev1 to confirm availability.
WHY PEKK-A
PEEK-Class Performance. Broader Processing Window.
ThermaX™ PEKK-A is a PAEK-family ultra-polymer that delivers the same four performance pillars as PEEK — with one critical advantage: a wider extrusion window that makes it more forgiving on industrial platforms. The go-to choice when you need PAEK-class heat, flame resistance, and chemical inertness without PEEK’s narrow process tolerances.
PAEK-Class Heat Resistance
Continuous use to 240–260°C with a 162°C Tg and 305°C melting point. Maintains structural integrity where PA, PC, and even ULTEM-family materials have long since softened.
Wider Processing Window Than PEEK
Prints at 345–375°C — a lower and broader extrusion window than standard PEEK. Easier to dial in on industrial platforms without sacrificing thermal or mechanical performance.
Inherent Flame Resistance
UL 94 V-0 rated at 0.8mm. Self-extinguishing with low smoke and minimal toxic gas emission. No flame-retardant additives required — the PEKK polymer chemistry itself carries the rating.
Broad Chemical Inertness
Resists hydrocarbons, automotive fluids, alcohols, and dilute acids across a wide temperature range. Semi-crystalline structure provides a dense molecular barrier against chemical attack.
PRINTING WITH PEKK-A
PEKK-A Is Demanding — But More Forgiving Than PEEK
ThermaX™ PEKK-A is not a plug-and-print material. It requires industrial hardware and process discipline — but its broader extrusion window gives you more headroom than standard PEEK.
- Extruder Temp 345–375°C — all-metal hot end required
- Bed Temp 120–140°C — PEI or high-temp build surface
- Chamber Temp 70–150°C — actively heated enclosure strongly recommended
- Nozzle Hardened steel or ruby tip — ≥0.4mm diameter
- Drying 120°C / 4 hr minimum before every print session
- ⚠ End-of-Session Purge nozzle completely before cooling. Residual PEKK-A carbonizes at temperature and causes severe clogs if left to cool in the melt zone.
THERMAL DATA
Where the Temperature Scale Ends for Other Polymers, PEKK-A Begins
Four thermal milestones that define ThermaX™ PEKK-A’s operating envelope — verified against 3DXTech Technical Data Sheet Rev. 2.1.
Onset of chain mobility. PEKK-A’s higher Tg (vs. 143°C for standard PEEK) delivers superior dimensional stability in elevated-temperature load-bearing applications.
Sustained structural load-bearing at temperatures that reduce PA, PC, and ULTEM to deformed geometry — identical ceiling to PEEK at a lower print temperature.
Semi-crystalline melt transition at 305°C — lower than PEEK’s 343°C, which is exactly why PEKK-A processes at 345–375°C rather than 375–410°C.
Required before every session. Low moisture absorption but even trace moisture degrades print quality at PAEK-class temperatures. Print from the dryer for best results.
CHEMICAL RESISTANCE
Inert to the Environments That Destroy Other Polymers
ThermaX™ PEKK-A’s semi-crystalline structure provides a dense molecular barrier against chemical attack that would degrade PA, PC, or ABS within hours.
Consult TDS for complete chemical compatibility data before use in fluid-contact applications.
SPECIFICATIONS
ThermaX™ PEKK-A — Full Technical Data
Source: 3DXTech ThermaX™ PEKK-A Technical Data Sheet Rev. 2.1. Specifications at 1.75mm diameter, natural color.
Material Properties
| Polymer | Polyether Ketone Ketone (PEKK-A) |
| Diameter | 1.75mm |
| Color | Natural; Black (500g & 1kg) |
| Glass Transition (Tg) | 162°C |
| Melting Point (Tm) | 305°C |
| Continuous Use Temp | 240–260°C |
| Flame Rating | UL 94 V-0 (inherent, no additives) |
| Density | 1.27 g/cm³ |
Print Parameters
| Extruder Temp | 345–375°C |
| Bed Temp | 120–140°C |
| Chamber Temp | 70–150°C (recommended) |
| Drying Protocol | 120°C / 4 hr minimum |
| Min. Layer Height | 0.10mm |
| Nozzle Type | Hardened steel or ruby |
| Min. Nozzle Diameter | 0.4mm |
| Hot End Requirement | All-metal, rated ≥380°C |
Availability & Pricing
| Spool Sizes | 250g, 500g, 1kg, 2kg |
| 250g Price | $175 |
| 500g Price | $295 |
| 1kg Price | $550 |
| 2kg Pricing | Special order — MOQ 10 units |
| Lead Time | Varies — contact Rev1 to confirm |
| Quality Standard | ISO 9001:2015 Certified |
| Origin | Grand Rapids, MI, USA |
SPOOL SELECTION
Four Spool Sizes. One Material Standard.
ThermaX™ PEKK-A is available in 250g, 500g, 1kg, and 2kg. Natural color across all sizes; Black available in 500g and 1kg. Choose the spool size that fits your print volume and platform.
- Reel #1 — 152mm dia., 41mm wide
- Natural color only
- Prototyping and qualification runs
- Reel #2–#7 — 198mm dia.
- Natural & Black — AMS / CFS / ACE Pro compatible
- Recommended for production use
- Reel #4 — 198mm dia., 72mm wide
- Natural & Black available
- Best value for sustained production
- Reel #8 — 300mm dia., 100mm wide
- Natural color — contact Rev1 for pricing
- High-volume industrial runs
PRINT QUALITY
Production-Grade Output on the Right Equipment
ThermaX™ PEKK-A produces parts with fine surface detail and strong interlayer adhesion when printed on a properly configured industrial platform — with a more forgiving process window than standard PEEK.
COMPATIBLE PLATFORMS
Requires an Industrial-Grade 3D Printer
ThermaX™ PEKK-A demands an all-metal hot end rated to at least 380°C and an actively heated enclosure. Lower temperature requirement than PEEK — but still beyond consumer hardware.
CreatBot F160-PEEK
Purpose-built PAEK platform with dual all-metal hot ends and integrated chamber heating. Validated for PEKK-A — Rev1’s top recommendation for first-time PAEK adopters.
Rev1 RecommendedCreatBot PEEK-300
300mm build volume, 420°C hot end rating, 200°C heated chamber. Production-oriented PAEK platform suitable for PEKK-A at larger part geometries.
Rev1 RecommendedCreatBot F430
Quad-nozzle large-format industrial printer with multi-material capability. Supports PEKK-A plus support materials for complex geometries and dual-extrusion workflows.
Rev1 RecommendedAny Open-Platform Printer
Minimum: 380°C+ all-metal hot end • 120–140°C heated bed • 70–150°C enclosure • hardened steel or ruby nozzle ≥0.4mm.
WHERE IT WORKS
Six Industries Where PEKK-A Is the Answer
When weight matters, temperatures are extreme, chemicals are aggressive, or fire codes are strict — ThermaX™ PEKK-A belongs in the design.
Aerospace
Structural brackets, ducting, turbine-adjacent components, and radome housings requiring flame resistance, low outgassing, and temperature endurance.
Medical Devices
Surgical instruments, implant trial components, autoclavable fixture tooling, and patient-specific guides where PEEK chemistry is the established biocompatible standard.
Automotive Under-Hood
Valve seats, fluid handling brackets, sensor housings, and sealing components exposed to sustained heat and hydrocarbon chemical attack.
Chemical Processing
Pump housings, impeller components, valve bodies, and manifolds in contact with aggressive chemical process streams at elevated operating temperature.
Semiconductor
Wafer-handling end effectors, high-temperature test fixtures, and process chamber components requiring dimensional stability under thermal cycling.
Industrial Tooling
Jigs, bearing cages, wear-contact fixtures, and press-fit tooling demanding stiffness and thermal ceiling that engineering nylons cannot sustain.
MATERIAL CARE
Moisture Is the Enemy. A Proper Protocol Eliminates It.
PEKK-A has low inherent moisture absorption, but printing with undried filament at these temperatures produces defective output. 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
ThermaX™ PEKK-A vs. Commonly Evaluated Alternatives
Buyers evaluating PEKK-A typically compare against a platform-tied Stratasys benchmark using the same chemistry, standard PEEK for buyers choosing between the two PAEK grades, and CarbonX PEKK-A+CF15 for applications requiring added stiffness.
3DXTech / Rev1 Tech
Stratasys
3DXTech
3DXTech
3DXTECH QUALITY
Manufactured in Michigan. Certified to ISO 9001:2015.
Every spool of ThermaX™ PEKK-A is produced in-house at 3DXTech’s Grand Rapids, MI facility under a certified quality management system.
ISO 9001:2015 Certified
Production under a certified quality management system. Lot traceability and process controls throughout filament fabrication.
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 ThermaX™ PEKK-A TDS Rev. 2.1. Available for download below.
RESOURCES
Downloads & Technical Support
Everything you need to qualify and print ThermaX™ PEKK-A 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 PEKK-A and PEEK. If you need guidance on which platform to match with this material, our team has run them.
Pre-Sales Technical Support
Questions about print settings, printer selection, or qualifying PEKK-A for a specific application? Contact Rev1 before you order — that conversation is free.
FREQUENTLY ASKED
ThermaX™ PEKK-A — Buyer Questions Answered
What print temperature does ThermaX™ PEKK-A require?
ThermaX™ PEKK-A requires an extruder temperature of 345–375°C and a bed temperature of 120–140°C. A heated enclosure at 70–150°C is strongly recommended. An all-metal hot end is required — though the 345°C lower bound is more accessible than standard PEEK’s 375°C minimum.
What spool sizes are available for ThermaX™ PEKK-A?
ThermaX™ PEKK-A is available in 250g ($175, natural only), 500g ($295, natural & black), 1kg ($550, natural & black), and 2kg (special order — MOQ 10 units, contact Rev1). The 500g and 1kg spools are compatible with Bambu AMS, Creality CFS, and Anycubic ACE Pro multi-material systems.
How should ThermaX™ PEKK-A be dried before printing?
Dry at 120°C for at least 4 hours before each print session. Print directly from a heated dry-box for best results — ambient humidity reabsorbs during long runs. Moisture-affected PEKK-A produces rough surfaces, weakened layer adhesion, and popping during extrusion. Store sealed with desiccant between sessions.
Does ThermaX™ PEKK-A require a hardened steel nozzle?
Yes. PEKK-A requires a hardened steel or ruby-tipped nozzle of at least 0.4mm. Standard brass nozzles degrade rapidly at PAEK temperatures. Purge the nozzle completely before cooling after every session — residual PEKK-A carbonizes in the melt zone and causes severe clogs if left to cool.
Is ThermaX™ PEKK-A suitable for medical or aerospace applications?
PEKK chemistry shares biocompatibility characteristics with PEEK and is used in aerospace structural applications requiring flame resistance and high-temperature stability. Whether a specific printed part meets applicable regulatory or certification requirements depends on the lot, post-processing, and intended use. Consult the 3DXTech TDS Rev. 2.1 and your compliance team for application-specific verification.
Which 3D printers are compatible with ThermaX™ PEKK-A?
Any industrial printer with an all-metal hot end rated to at least 380°C, a heated bed capable of 120–140°C, and a heated enclosure at 70–150°C can process ThermaX™ PEKK-A. The CreatBot F160-PEEK, CreatBot PEEK-300, and CreatBot F430 are validated platforms available from Rev1 Tech.
How does ThermaX™ PEKK-A compare to Stratasys Antero 800NA?
Both ThermaX™ PEKK-A and Antero 800NA use PEKK-A chemistry. The primary difference is platform: Antero 800NA is designed exclusively for Stratasys printers and workflows. ThermaX™ PEKK-A is an open-platform material at a transparent price ($175/250g), compatible with any industrial printer meeting the temperature requirements. Buyers with existing Stratasys infrastructure should evaluate both; buyers on open platforms have a clear path with ThermaX PEKK-A.
Should I choose ThermaX™ PEKK-A or ThermaX™ PEEK?
Both deliver 240–260°C continuous-use capability and UL 94 V-0 flame resistance. PEKK-A has a higher Tg (162°C vs. 143°C) and prints at a lower, more forgiving temperature (345–375°C vs. 375–410°C). PEEK has higher tensile and flexural modulus and is the more established standard in aerospace and medical certifications. If process window matters most, choose PEKK-A. If you need maximum stiffness or certification precedent, choose PEEK. Contact Rev1 if you need help deciding.