Antero 840CN03

A PEKK-based material

Antero™ 840CN03 is a PEKK-based FDM thermoplastic combining the excellent physical and mechanical qualities of PEKK with electrostatic dissipative (ESD) properties. The material is filled 3% by weight with carbon nanotubes.

As a high-performance polymer, Antero 840CN03 exhibits exceptional chemical and wear resistance, ultra-low outgassing properties and consistent ESD performance. ESD values range from 104 – 109 ohms per square inch. This makes the material particularly suitable for space and industrial applications where these qualities are critical.

Antero 840CN03 Material Properties

Behaviour and use


95 MPa (XZ Axis)
51 MPa (ZX Axis)


3177 MPa (XZ Axis)
3012 MPa (ZX Axis)

HDT @ 66 PSI

150 °C


48 J/m (XZ Axis)
28 J/m (ZX Axis)

Main Uses

Produce prototypes and low volume, highly customized parts with consistent ESD (Electrostatic discharge safe) performance that are strong, temperature and chemical resistant, ultra-low outgassing, and with exceptional wear properties.

With a unique combination of material properties this material can be used in the most demanding of applications, such as aerospace, space, and oil and gas.  Stronger, stiffer, higher use temperature, chemical resistance when compared to ABS.

Top Applications
  • Aircraft components exposed to jet fuel, oil and hydraulic fluid
  • Spacecraft parts that demand low outgassing
  • Chemical-resistant industrial parts

FDM Material Profile

Learn how manufacturers are using FDM materials

Lockheed Martin 3D prints space ready parts

Lockheed Martin uses additive manufacturing, and specifically an ESD PEKK-based material, to produce flight-worthy parts for the Orion space mission to Mars and beyond. Additive provides repeatability and reliability of parts, as well as extra methods to make them more lightweight.

FDM Material Applications

Learn how designers and engineers are using FDM Materials

Material Attributes

Antero 840CN03

Highly Resistant

PEKK-based composite for the most demanding applications

ESD Performance

Build Volume

Avoid assembly and splitting print jobs in build chamber

Large Parts

Mechanical Properties

Excellent mechanical, chemical, outgassing, and ESD properties



Innovative designs for function, aesthetics, simplicity, etc.

Design Freedom

Antero 840CN03 Specification & Features

Physical PropertiesTest MethodTypical Values
HDT @ 66 psiASTM D648
Method B
150 °C (302 °F)
HDT @ 264 psiASTM D648
Method B
153 °C (306 °F)
TgASTM D7426
Inflection Point
158 °C (316 °F)
(40 °C to 140 °C)
50 µm/[m·°C] (122 µin/[in·°F])
Volume ResistanceASTM D257 10410-10 Ω
Specific GravityASTM D792 @ 23 °C1.27


Mechanical PropertiesXZ OrientationZX Orientation
Tensile Properties: ASTM D638
Yield StrengthMPa95 (5)No yield
psi13,610 (550)No yield
Elongation @ Yield%4.4 (4)No yield
Strength @ BreakMPa65 (15)50 (5)
psi9,150 (2330)7,320 (600)
Elongation @ Break %6 (3)1.8 (0.2)
Modulus (Elastic)GPa3.17 (0.04)3.01 (0.06)
ksi460 (7)435 (10)
Flexural Properties: ASTM D790, Procedure A
Strength @ BreakMPaNo break70 (10)
psiNo break9,760 (1580)
Strength @ 5% StrainMPa135 (3)-
psi19,620 (380)-
Strain @ Break%No break2.4 (0.6)
ModulusGPa3.24 (0.05)2.7 (0.1)
ksi390 (15)390 (15)
Compression Properties: ASTM D695
Yield StrengthMPa100 (2)105 (3)
psi14,920 (290)15,380 (500)
ModulusGPa2.61 (0.04)2.63 (0.04)
ksi380 (6)380 (6)
Impact Properties: ASTM D256, ASTM D4812
Izod, NotchedJ/m48 (4)28 (8)
ft*lb/in0.90 (0.07)0.5 (0.1)
Izod, UnnotchedJ/m1,470 (690)128 (40)
ft*lb/in28 (13)2.4 (0.8)


Chemical ResistanceReagentXZ OrientationZX Orientation
Tensile StrengthDichloromethane-88%-74.80%
Ethyl Acetate-2.90%-2.30%
Jet A-2.10%7.30%
30% Nitric Acid-5.70%5.70%
30% Sulfuric Acid-9.30%-10.10%
60% Sodium Hydroxide-1.40%1.90%
Concentrated Ammonia-1.40%11.00%
% Elongation @ breakDichloromethane714.80%1598.40%
Ethyl Acetate4.20%16.20%
Jet A-0.40%7.00%
30% Nitric Acid61.40%52.40%
30% Sulfuric Acid47.20%-5.40%
60% Sodium Hydroxide5.20%-1.60%
Concentrated Ammonia11.10%10.80%
Tensile ModulusDichloromethane-90.70%-85.30%
Ethyl Acetate1.80%6.40%
Jet A1.40%5.30%
30% Nitric Acid-0.80%-6.20%
30% Sulfuric Acid-7.60%-5.00%
60% Sodium Hydroxide0.20%3.30%
Concentrated Ammonia-0.40%5.00%


Flame, Smoke, and ToxicityAvg Time to
Extinguish (seconds)
Avg Burned
Length (inches)
Drip Time to
Extinguish (seconds)
12 Second Vertical Ignition per 14 CFR 25.853(a)
Antero 840CN03, Vertical - ZX3.20.30 (no drips)
Antero 840CN03, Horizontal - XZ4.70.20 (no drips)
60 Second Vertical Ignition per 14 CFR 25.853(a)
Antero 840CN03, Vertical - ZX<10.50 (no drips)
Antero 840CN03, Horizontal - XZ<10.50 (no drips)
Avg Burn Rate (in/min)
15 Second Horizontal Ignition per 14 CFR 25.853(a)
Antero 840CN03, Vertical - ZX0
Antero 840CN03, Horizontal - XZ0
Test ModeAverage DS (maximum) within 4 minutes
Smoke Density per BSS 7238, Rev. C
Antero 840CN03, Vertical - ZXFlaming0
Antero 840CN03, Horizontal - XZFlaming0
Smoke Density per AITM 2.0007B, Issue 3
Antero 840CN03, Vertical - ZXFlaming0
Antero 840CN03, Horizontal - XZFlaming0
Antero 840CN03, Vertical - ZXNon-Flaming0
Antero 840CN03, Horizontal - XZNon-Flaming0


Flame, Smoke, and Toxicity cont.Test ModeCO
Toxic Gas Emission per BSS 7239, Rev. A
Antero 840CN03, Vertical - ZXFlaming5 0 (NI) 0 (NI) 0 (NI) 0 (NI) 0 (NI)
Antero 840CN03, Horizontal - XZFlaming<5 0 (NI) 0 (NI) 0 (NI) 0 (NI) 0 (NI)
Toxic Gas Emission per AITM 3.0005, Issue 2
Antero 840CN03, Vertical - ZXFlaming400.1 0 (NI) 0 (NI) 0 (NI)
Antero 840CN03, Horizontal - XZFlaming300.3 0 (NI) 0 (NI) 0 (NI)
Antero 840CN03, Vertical - ZXNon-Flaming000 0 (NI) 0 (NI) 0 (NI)
Antero 840CN03, Horizontal - XZNon-Flaming100 0 (NI) 0 (NI) 0 (NI)
Peak HRR
Time to Peak Heat Release
2 Minute Total HRR
Heat Release Rate of Cabin Materials per 14 CFR 25.853(d)
Antero 840CN03, Horizontal - XZ55.9286.70
Antero 840CN03, Vertical - ZX55.12930.1


TML (%)CVCM (%)WVR (%)
Vertical Build - ZX0.41<0.010.17
Horizontal Build - XZ0.450.010.15
Testing Observations
Visible CondensateYesOpaqueYes
Percent Covered10% (ZX), 25% (XZ)Interference FringesNo
ThinYesColored FringesNo
HeavyNoSample Appearance After TestNo change

Fused Deposition Modeling (FDM) Technology

Advantages of 3D printing Antero 840CN03 with a Stratasys FDM Machine

Tough long-lasting parts

FDM technology works with engineering-grade thermoplastics to build strong, long-lasting and dimensionally stable parts with the best accuracy and repeatability of any 3D printing technology. Antero 840CN03 parts are tough enough to be used as advanced conceptual models, functional prototypes, manufacturing tools and production parts.

Meet production demands

FDM systems are as versatile and durable as the parts they produce. Advanced FDM 3D Printers boast the largest build envelopes and material capacities in their class, delivering longer, uninterrupted build times, bigger parts and higher quantities than other additive manufacturing systems, delivering high throughput, duty cycles and utilization rates.

Gain new possibilities

FDM 3D Printers streamline processes from design through manufacturing, reducing costs and eliminating traditional barriers along the way. Industries can cut lead times and costs, products turn out better and get to market faster.

Compatible 3D Printers

Stratasys Machines that can print with Antero 840CN03 material

Stratasys F900 Production Machine

Stratasys F900

The Stratasys F900 is the ultimate manufacturing-grade production 3D printer with the widest array of engineering-grade materials, maximum throughput, largest build platform, and highest accuracy.

Need to 3D print with Antero 840CN03?

Call us free at  1-877-219-6757  to speak to an expert, or send us your CAD model and we'll 3D print it with Antero 840CN03 material