PI Z2 Filament.
A thermoplastic polyimide for the ultra-performance class, built to be easy to print. It meets EN 45545 R22 and R23 at HL3 for railway vehicles. read further
- Easy to print HT filament
- Extremely high Z strength
- High insulating properties
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.
PI filament: PI Z2 is a printable polyimide certified for rail interiors.
A bracket printed in PI Z2.
| Property | Condition | Value | Test method |
|---|---|---|---|
| Density | 1.51 g/cm3 | ASTM B923-10 |
| Property | Condition | Value | Test method |
|---|---|---|---|
| Tensile Strength | XY (flat), printed bar | 83 MPa | ISO 527 Type 1BA |
| Tensile Strength | XZ (on edge), printed bar | 89 MPa | ISO 527 Type 1BA |
| Tensile Strength | ZX (upright), printed bar | 68 MPa | ISO 527 Type 1BA |
| Tensile Modulus | XY (flat), printed bar | 2.73 GPa | ISO 527 Type 1BA |
| Tensile Modulus | XZ (on edge), printed bar | 2.89 GPa | ISO 527 Type 1BA |
| Tensile Modulus | ZX (upright), printed bar | 2.56 GPa | ISO 527 Type 1BA |
| Strain at Break | XY (flat), printed bar | 4.8 % | ISO 527 Type 1BA |
| Strain at Break | XZ (on edge), printed bar | 4.8 % | ISO 527 Type 1BA |
| Strain at Break | ZX (upright), printed bar | 3.5 % | ISO 527 Type 1BA |
| Tensile Strength | XZ (on edge), water-jetted bar | 101 MPa | ASTM D638 type V |
| Tensile Strength | ZX (upright), water-jetted bar | 59 MPa | ASTM D638 type V |
| Tensile Modulus | XZ (on edge), water-jetted bar | 2.82 GPa | ASTM D638 type V |
| Tensile Modulus | ZX (upright), water-jetted bar | 2.57 GPa | ASTM D638 type V |
| Strain at Break | XZ (on edge), water-jetted bar | 4.5 % | ASTM D638 type V |
| Strain at Break | ZX (upright), water-jetted bar | 2.7 % | ASTM D638 type V |
| Tensile Strength | ZX (upright), single wall | 96 MPa | ASTM 1708 |
| Tensile Modulus | ZX (upright), single wall | 2.41 GPa | ASTM 1708 |
| Strain at Break | ZX (upright), single wall | 4.7 % | ASTM 1708 |
| Impact Strength Izod (notched) | XY (flat) | 5.3 kJ/m2 | ISO 180 |
| Impact Strength Izod (notched) | XZ (on edge), water-jetted bar | 5.3 kJ/m2 | ISO 180 |
| Impact Strength Izod (notched) | ZX (upright), water-jetted bar | 4.3 kJ/m2 | ISO 180 |
| Impact Strength Izod (unnotched) | XY (flat) | 29 kJ/m2 | ISO 180 |
| Impact Strength Izod (unnotched) | XZ (on edge), water-jetted bar | 28 kJ/m2 | ISO 180 |
| Impact Strength Izod (unnotched) | ZX (upright), water-jetted bar | 26 kJ/m2 | ISO 180 |
| Property | Condition | Value | Test method |
|---|---|---|---|
| Temp. of deflection under load | 1.80 MPa | 167 ºC | ISO 75-1/-2 |
| Temp. of deflection under load | 0.45 MPa | 175 ºC | ISO 75-1/-2 |
| Glass transition temperature (Tg) | 195 ºC | DMA | |
| Decomposition temperature at 1% loss | 343 ºC | DMA | |
| Decomposition temperature | 460 ºC | DMA | |
| CLTE | -45/45 infill, -50 to 60 ºC, probe on top face (XY) | 43.05 ppm/ºC | ASTM E831 |
| CLTE | -45/45 infill, -50 to 60 ºC, probe on side face (XZ/ZX) | 46.64 ppm/ºC | ASTM E831 |
| CLTE | -45/45 infill, 60 to 120 ºC, probe on top face (XY) | 53.95 ppm/ºC | ASTM E831 |
| CLTE | -45/45 infill, 60 to 120 ºC, probe on side face (XZ/ZX) | 58.52 ppm/ºC | ASTM E831 |
| CLTE | -45/45 infill, 120 to 190 ºC, probe on top face (XY) | 62.51 ppm/ºC | ASTM E831 |
| CLTE | -45/45 infill, 120 to 190 ºC, probe on side face (XZ/ZX) | 67.74 ppm/ºC | ASTM E831 |
| CLTE | 90º XZ infill, -50 to 60 ºC, probe on top face (XY) | 50.15 ppm/ºC | ASTM E831 |
| CLTE | 90º XZ infill, -50 to 60 ºC, probe on side face (XZ/ZX) | 44.68 ppm/ºC | ASTM E831 |
| CLTE | 90º XZ infill, 60 to 120 ºC, probe on top face (XY) | 61.07 ppm/ºC | ASTM E831 |
| CLTE | 90º XZ infill, 60 to 120 ºC, probe on side face (XZ/ZX) | 58.30 ppm/ºC | ASTM E831 |
| CLTE | 90º XZ infill, 120 to 190 ºC, probe on top face (XY) | 68.64 ppm/ºC | ASTM E831 |
| CLTE | 90º XZ infill, 120 to 190 ºC, probe on side face (XZ/ZX) | 65.23 ppm/ºC | ASTM E831 |
| Property | Condition | Value | Test method |
|---|---|---|---|
| Dielectric constant | 1 GHz | 2.87 | ASTM D150 |
| Dielectric constant | 10 GHz | 2.85 | ASTM D150 |
| Dielectric loss | 1 GHz | 0.0094 | ASTM D150 |
| Dielectric loss | 10 GHz | 0.0083 | ASTM D150 |
| Breakdown voltage | 172 MV/m | ASTM D149 |
A heated chamber, and a wide speed window once you are in it.
| Parameter | Value |
|---|---|
| Nozzle temperature | 390 to 410 °C |
| Heated bed temperature | 120 to 160 °C |
| Print speed | 15 to 150 mm/s |
| Adhesion | Magigoo HT, Nano polymer adhesive or GeckoTec EZ-Hot, on glass or a carbon plate |
| Drying | 120 °C, more than 4 hours |
| Chamber temperature | 80 to 160 °C |
| Nozzle | 0.4 mm or larger, ruby or hardened preferred |
| Bed material | Glass or a carbon plate |
| Filament weight | Spool | Empty weight |
|---|---|---|
| 200 to 750 g | RS 200 GH2L PC | 243 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 PI Z2 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 PI Z2 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 PI Z2.
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