PEKK-A Filament.
A PEKK from the same polymer family as PEEK, made from an amorphous grade whose slow crystallisation gives better Z-layer bonding. Easier to print than PEEK, and inherently flame resistant. read further
- Better printability than PEEK
- High temperature resistance
- Inherently flame resistant (UL94 V-0)
For custom specs, technical validation, or bulk pricing. Speak with an engineer before you order.
Freshly produced on demand and typically shipped within 3 working days.
PEKK-A: the more printable way into the PAEK family.
| Property | Condition | Value | Test method |
|---|---|---|---|
| Density | 23 ºC | 1.27 g/cm3 | ISO 1183 |
| Water Absorption | 23 ºC, RH50%, equilibrium | 0.44% | ISO 62 |
| Water Absorption | 23 ºC, RH50%, 24 h, 2 mm | 0.07% | ISO 62 |
| Water Absorption | 23 ºC, immersion, equilibrium | 1.07% | ISO 62 |
| Water Absorption | 23 ºC, immersion, 24 h, 2 mm | 0.2% | ISO 62 |
| Melt Volume Flow Rate | 380 ºC/1 kg | 6 cm3/10 min | ISO 1133 |
| Property | Condition | Value | Test method |
|---|---|---|---|
| Tensile modulus | 23 ºC, 1 mm/min | 2.9 GPa | ISO 527-1BA |
| Tensile Strength | Yield point, 23 ºC, 25 mm/min | 88 MPa | ISO 527-1BA |
| Elongation at Yield | 23 ºC, 25 mm/min | 5.4% | ISO 527-1BA |
| Elongation at Break | 23 ºC, 25 mm/min | > 80% | ISO 527-1BA |
| Tensile Strength | Yield point, 125 ºC, 25 mm/min | 53 MPa | ISO 527-1BA |
| Elongation at Break | 125 ºC, 25 mm/min | > 100% | ISO 527-1BA |
| Compression Modulus | 23 ºC, 1 mm/min | 3.0 GPa | ISO 604 |
| Compression Strength | 23 ºC, 5 mm/min | 108 MPa | ISO 604 |
| Flexural Modulus | 23 ºC | 3.0 GPa | ISO 178-93 |
| Flexural Strength | Max, 23 ºC | 128 MPa | ISO 178-93 |
| Unnotched Charpy Impact Strength | 23 ºC | No Break | ISO 179/1eU |
| Unnotched Charpy Impact Strength | -30 ºC | No Break | ISO 179/1eU |
| Charpy notched impact strength | 23 ºC | 5.5 kJ/m2 | ISO 179/1eA |
| Charpy notched impact strength | -30 ºC | 5.0 kJ/m2 | ISO 179/1eA |
| Property | Condition | Value | Test method |
|---|---|---|---|
| Glass Transition | 20 ºC/min | 158 ºC | DSC |
| Specific Heat Capacity | 23 ºC | 1.0 J/(g K) | |
| Heat Deflection Temperature | 1.8 MPa | 139 ºC | ISO 75f |
| CLTE | Average, -100 ºC to Tg | 26.5 µm/m/K | DMA, tension |
| Property | Condition | Value | Test method |
|---|---|---|---|
| Electric Strength | 100 µm thickness | 84 kV/mm | IEC 60243-1 |
| Relative Permittivity | 23 ºC, 1 MHz | 3.0 | IEC 60250 |
| Loss Tangent | 23 ºC, 1 kHz | 0.002 | IEC 60250 |
| Volume Resistivity | 23 ºC | 1.0E+16 ohms•cm | ASTM D257 |
| Surface Resistivity | 23 ºC | 1.0E+16 ohms | ASTM D257 |
| Property | Condition | Value | Test method |
|---|---|---|---|
| Flammability Rating | 0.8 mm | V-0 | UL 94 |
| Limiting Oxygen Index | 3.2 mm | 43% | ISO 4589-2 |
Easier than PEEK, which is not the same as easy.
| Parameter | Value |
|---|---|
| Nozzle temperature | 350 to 400 °C |
| Heated bed temperature | 120 to 160 °C |
| Print speed | 20 to 40 mm/s |
| Adhesion | Magigoo HT on carbon plate, PEI sheet or glass |
| Drying | 120 °C, 6 to 8 hours |
| Chamber temperature | 70 to 150 °C |
| Filament weight | Spool | Empty weight |
|---|---|---|
| 200 to 750 g | RS 200 GH2L PC | 243 g |
| 1000 g | RS 200 KDL PC | 256 g |
| 2000 g | RS300/15GHL PC | 618 g |
Precision-engineered consistency.
Consistent prints start with a uniform filament shape. We continuously monitor diameter and roundness during production. When filament varies in size or loses its round profile, material flow becomes erratic. This causes under-extrusion and weak layer bonds.
Our manufacturing process keeps the cross-section stable across the full spool. Your printer receives a steady volume of material without pressure drops in the nozzle. You get predictable extrusion on every job, so with PEKK-A you can focus on your design, not your material.
Sealed at the source. Never touched by water.*
Unlike manufacturers who cool filament in a water bath, our filament never touches water during production. Moisture inside the material creates bubbles and weakens layer bonding during printing. Water-free production keeps extrusion consistent and bubble-free.
Sealed and ready to print.
We produce on demand. Every spool is vacuum-sealed immediately after extrusion, so it reaches you dry. This process keeps every spool of PEKK-A ready to print out of the box.
* At times of high demand, and for some variants, production may run on a conventional water-cooled line. Contact us before ordering if you require material produced with our water-free process.
Vacuum-sealed on the production line, before it ever leaves the machine.
Precision you can track. From pellet to part.
We produce every spool on demand in our own facility. This gives us direct oversight that mass-produced stock lacks. Your spool comes from a fresh, identifiable batch rather than long-term warehouse inventory. We document the production trail for every run.
Documented, not just shipped.
We keep the production logs for every batch we make. On request, we link a Certificate of Analysis and Technical Data Sheet to your specific batch. You get clear data for your spool of PEKK-A.
Dutch engineering for parts that define the future.
At 3D4M, we develop and manufacture high-performance thermoplastic filaments for demanding applications across aerospace, defence, semiconductor, automotive, medical research, and industrial manufacturing. We work with engineers, researchers, and manufacturers who need materials that go beyond standard specifications.
Our engineering starts with the machines themselves. We design and build our own extrusion lines around our patented extrusion process, combining material expertise with technology developed in-house. For moisture-sensitive polymers, our air-cooling technology offers a water-free cooling option, allowing us to tailor the production process to the material.
Our production facility is built on a single, uncompromising principle: control. From our extrusion technology to precise diameter monitoring and vacuum-sealed packaging, we control every stage to deliver consistent filament with batch traceability.
Trusted by global leaders
Supporting over 100 universities alongside global industry leaders, we have become a trusted partner to advanced research labs and manufacturers worldwide. We bring together material expertise and Dutch engineering to help turn ambitious ideas into reliable, high-performance parts.
3D4M headquarters, Haarlem, the Netherlands.
Validating this material for your application?
The leap to a high-performance polymer can be complex. Speak directly with one of our material engineers about your printer setup, target specifications, and material performance. We are here to help you de-risk your validation phase.
Specify your specs. We'll start your batch.
Experience the benefits of freshly extruded, water-free filament. Select your required diameter and spool weight in the order panel to initiate our on-demand production process. We ship worldwide, vacuum-sealed and ready.
Place your order