# PolyFlex™ TPU90

[Download TDS PDF](https://cdn.shopify.com/s/files/1/0548/7299/7945/files/PolyFlex_TPU90_TDS_EN_V5.4.pdf?v=1731956392)

PolyFlex™ TPU90, created from Covestro’s Addigy® family, is a thermoplastic polyurethane (TPU) based filament designed to provide great flexibility without compromising on printing speed. It also has the ability to resist ultra-violet (UV) light or sunlight.

PHYSICAL PROPERTIES

| Property           | Testing Method    | Typical Value       |
| ------------------ | ----------------- | ------------------- |
| Density            | ISO1183, GB/T1033 | 1.12 g/cm3 at 23 °C |
| Melt index         | 185°C, 1.2 kg     | 6.1 g/10min         |
| Light transmission | N/A               | N/A                 |
| Flame retardancy   | N/A               | N/A                 |

CHEMICAL RESISTANCE DATA

| Property                  | Typical Value |
| ------------------------- | ------------- |
| Effect of weak acids      | Fair          |
| Effect of strong acids    | Poor          |
| Effect of weak alkalis    | Fair          |
| Effect of strong alkalis  | Poor          |
| Effect of oils and grease | Good          |

Note:

Good: Material may get minor attack after long periods of storage with chemical at ambient temperature

Fair: Material can be used for short time contact with chemical at ambient temperature

Poor: Material becomes unstable on contact with chemical at ambient temperature

MOISTURE ABSORPTION CURVE

![](https://web-api.textin.com/ocr_image/external/2c6e55487ef297d0.jpg)

MECHANICAL PROPERTIES

| Property                    | Testing Method         | Typical Value  |
| --------------------------- | ---------------------- | -------------- |
| Stress at 100% strain (X-Y) | ISO 37, GB/T 528       | 7.1 ± 0.3 MPa  |
| Stress at 200% strain (X-Y) | ISO 37, GB/T 528       | 9.0 ± 0.9 MPa  |
| Stress at 300% strain (X-Y) | ISO 37, GB/T 528       | 13.2 ± 0.6 MPa |
| Stress at 400% strain (X-Y) | ISO 37, GB/T 528       | 19.0 ± 0.9 MPa |
| Tensile strength (X-Y)      | ISO 37, GB/T 528       | 30.1 ± 2.4 MPa |
| Elongation at break (X-Y)   | ISO 37, GB/T 528       | 592.1 ± 32.9 % |
| Shore hardness              | ISO 7619-1, GB/T 531.1 | 90A            |

RECOMMENDED PRINTING CONDITIONS

| Parameter                                                                 |                                       |
| ------------------------------------------------------------------------- | ------------------------------------- |
| Nozzle temperature                                                        | 210 – 230 (℃)                         |
| Build surface treatment                                                   | PC and Texture PEI (Glue when needed) |
| Build plate temperature                                                   | 25 - 60 (˚C)                          |
| Cooling fan                                                               | ON                                    |
| Printing speed                                                            | 30 – 70 (mm/s)                        |
| Retraction distance                                                       | 3 - 6 (mm)                            |
| Retraction speed                                                          | 40 - 60 (mm/s)                        |
| Closure Chamber                                                           | No Needed                             |
| Recommended support material                                              | PolySupport™ and PolyDissolve™ S1     |
| Drying setting                                                            | 70˚C for 8h                           |
| Annealing setting \* Based on 0.4 mm nozzle. Printing conditions may vary | - with different nozzle diameters     |

* Based on 0.4 mm nozzle. Printing conditions may vary with different nozzle diameters

### TENSILE TESTING SPECIMEN

ISO 37, GB/T 528

![](https://web-api.textin.com/ocr_image/external/bed4187f2122553b.jpg)

![](https://web-api.textin.com/ocr_image/external/a82f48dac62f617b.jpg)

![](https://web-api.textin.com/ocr_image/external/54c7f6dfeca33554.jpg)

HOW TO MAKE SPECIMENS

| Printing temperature      | 230 °C              |
| ------------------------- | ------------------- |
| Bed temperature           | 50 °C               |
| Shell                     | 2                   |
| Top & bottom layer        | 3                   |
| Infill                    | 100%                |
| Environmental temperature | Ambient temperature |
| Cooling fan               | ON                  |

### DISCLAIMER:

The typical values presented in this data sheet are intended for reference and comparison purposes only. They should not be used for design specifications or quality control purposes. Actual values may vary significantly with printing conditions. End- use performance of printed parts depends not only on materials, but also on part design, environmental conditions, printing conditions, etc. Product specifications are subject to change without notice.

Each user is responsible for determining the safety, lawfulness, technical suitability, and disposal/ recycling practices of Polymaker materials for the intended application. Polymaker makes no warranty of any kind, unless announced separately, to the fitness for any use or application. Polymaker shall not be made liable for any damage, injury or loss induced from the use of Polymaker materials in any application.


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