Prusament TPU 95A
TPU is known mainly for its flexible properties and extreme wear resistance. It is perfectly suitable for mechanically resistant parts, such as O-rings, spacers, rugged housings, parts of sports equipment and much more. While most TPU materials are difficult to print, the Prusament TPU is an exception. It is a perfect fit with the Nextruder, which makes it very close to failproof.
Characteristics
Pros
- Soft and bendable at thin layers, strong and durable at thick layers
- High print reliability with little to no stringing
- Precise diameter
- Good at printing bridges and overhangs (compared with other TPUs)
- Great wear resistance
- Flexible and durable at sub-zero temperatures
- High resistance to hydrolysis and microbial degradation
- Very low moisture absorption
Cons
- Some extra tweaking before printing may be required (depending on your printer)
- Printing with a smooth sheet requires a separation layer
- Drying may be necessary when stored in high-moisture conditions
- Large prints tend to warp
Application
Durable grips
Various rubber-like models that require high wear and impact resistance
Sharp edge covers
TPU 95A’s high wear resistance is great for covering skis, skates, etc.
Cable protectors
Another good use case for showing high mechanical resistance
Cleaning air blowers
Example of a useful flexible model
Tires
One of the most common applications where flexible filaments are used
Details
- Printing difficulty
- Medium
- Shore Hardness
- 95A
- High-temperature resistance
- 78.6 °C
- Under 1.80 MPa
- Impact resistance
- High
- Susceptibility to warping
- Medium
- Large parts may slightly warp
- Odor
- Negligible
- Post processing
- Difficult
- Solubility
- Difficult
- Elasticity
- High
- Print speed
- Slow
- Abrasivity
- None
Prusament TPU 95A is a durable material with flexible properties and extreme wear resistance. It offers a precise and consistent diameter, which is by far not a common thing among flexible filaments. The Prusament TPU 95A polymer structure (ether diol type) slightly differs from most TPU filaments (ester diol type). This difference gives this material several advantages in both mechanical and chemical resistance. The Prusament TPU 95A offers very low moisture absorption and high hydrolysis resistance. Its high elasticity and impact resistance remain even at low temperatures (as low as -50 °C). Also, this material is resistant to microbial degradation, comes with good temperature resistance (HDT 78.6 °C at 1.80 MPa), and great chemical resistance (mostly to oil and grease).
Download Safety Data Sheet (PDF)
Printer requirements
| Bed | Temperature: 65 ± 10 °C Enclosure not required |
|---|---|
| Print Surface | PA Nylon Satin sheet |
| Extruder | Temperature: 230 ± 10 °C |
Available colors
Beginners tips & tricks
Printer requirements
All our printers with the Nextruder can be used with little to no tweaking. We prepared print profiles for Core One, XL, MK4S, MK4, and Prusa Pro HT90 (see profiles in PrusaSlicer). Other printers (MK3S+ and older) are compatible as well, however, print profiles may be missing and some tweaking (loosening the idler) might be required.
When printing on the Original Prusa XL, you may struggle to feed the printer with TPU through the filament sensor on the side. It is recommended to unplug the PTFE tube from the sensor and feed the filament directly into the tube.
It may also be difficult to feed the filament through the PTFE tube on the Original Prusa Core One. If you find any difficulties doing this, we recommend unplugging the PTFE tube on the Nextruder side, pushing the filament through, then pushing it manually through the filament sensor, and plugging the tube again.
If you print with a high flow nozzle in an enclosure, leave the enclosure door open. Opening the ventilation grill on the Core One is sufficient.
It is recommended that you use a filament guide on your printer (MK4, MK4S) to keep the filament slightly tightened throughout the print.
Recommended sheets and correct print surface preparation
PA Nylon sheet: The most recommended print surface. Clean the surface with water as described in the handbook.
Satin sheet: The most recommended print surface. Clean the surface with IPA as described in the handbook. Larger models may require a brim and a slightly raised nozzle and heatbed temperature.
PP sheet: Recommended print surface. The adhesion is slightly higher than with the satin sheet. Clean the surface with IPA as described in the handbook.
Textured sheet: Recommended print surface. Clean the surface with IPA as described in the handbook. Note that adhesion to this print sheet might be too strong. If you struggle to remove the model after printing, you may heat the sheet to 40 °C and remove the model using a spatula.
Smooth PEI sheet: Not recommended. If you decide to print with this sheet, be sure to apply a separation layer (glue stick). Otherwise, the adhesion is too strong and removing the print will damage the sheet.
Drying before printing
Drying is usually not necessary. However, under some conditions (typically poor storage), material can eventually absorb moisture and print issues might occur. In that case, we recommend drying for at least 4 hours at 60 °C and storing the filament in a drybox.
Featured TPU 95A prints
