TPU Filament Guide: How to Print with TPU

There are many different types of 3D printer filament options you can choose when creating your unique designs. So which type should you go for? Today we are covering TPU filament, which is great for certain projects requiring flexibility and durability. Enjoy!

TPU filament

What Is TPU Material?

TPU is a thermoplastic 3D filament that is known for its transparency, elasticity and flexibility, as well as being resistant and durable. It is closely related to TPE which is one of the most used types of plastics for consumer products. TPU filament does require a bit more attention to detail when choosing 3D printer settings, but other than that, it is a great filament to work with.

The Properties of TPU

Below, you will find an overview of some of the properties that make up TPU filament. Hopefully, this will guide you in the right direction when considering whether TPU is a good fit for your specific print design in the future.

PropertyDescription
Elasticity/FlexibilityA flexible filament that allows for stretchable prints that return to shape.
Tensile StrengthOffers strong resistance to pulling forces, ideal for functional parts.
Abrasion ResistanceHighly resistant to wear and tear, suitable for parts exposed to friction.
DensityTypically around 1.1–1.3 g/cm³, contributing to lightweight yet durable prints.
Layer AdhesionExcellent interlayer bonding reduces warping and increases part strength.
Melting PointMelts between 220°C and 250°C, compatible with standard FDM/FFF printers.
PrintabilityFlexible filament requires slow print speeds and a direct drive extruder.
Chemical ResistanceTPU material is resistant to oils, greases, and many chemicals, ideal for industrial applications.
UV ResistanceModerate UV resistance; may require additives for outdoor durability.
Weather ResistanceWithstands varying temperatures and humidity, suitable for outdoor use.
BiodegradabilityTPU 3D Printer filament is not biodegradable but recyclable, reducing environmental impact.

If you want to know how the properties of TPU compare to other types of materials, please refer to our other blog where we have an overview of the most popular types of 3D printing filaments: The Different Types of 3D Printer Filament.

How to Print with TPU?

When it comes to using TPU Geeetech filament or other types of 3D filament made of TPU, it is worth reading up on the best settings to print TPU properly. It is known to be a little trickier than printing with PETG or PLA, so be sure to read the details below, and refer to any other settings on your specific filament.

StepSetting/Recommendation
1. Printing TemperatureNozzle: 190–250°C (Start at mid-range; adjust per brand)Bed: 40–60°C (Optional; improves adhesion)
2. Printing SpeedPrint Speed: 20–30 mm/sInitial Layer Speed: 10–15 mm/s (slower for better adhesion)
3. Extrusion & FeedingExtruder Type: Direct drive preferredRetraction: Minimal (<1 mm), slow (20–40 mm/s), or disabled
4. Adhesion & First LayerSurface: PEI sheet, glue stick, or blue painter’s tapeFirst Layer: Lower speed, increase thickness (≥0.2 mm)
5. Cooling FanFan Speed: 30%–50% (Lower for large parts to improve bonding)
6. Support StructuresSupport: Larger spacing or soluble materials for easier removal
7. Printing PlatformSurface: Clean, flat; use textured glass or flexible magnetic sheets
8. Avoid CloggingMaintenance: Clean nozzle before printing; check for extruder pulley slippage
9. Flexibility AdjustmentInfill: Lower density (10%–20%) for softer partsWalls/Layer Height: Adjust for flexibility

Applications

TPU filament is commonly used in many different applications and areas.  Due to the flexibility of TPU 3D printer filament, it is often used to print objects and designs that can move or stretch a little during use. So if you are looking for ideas to print with TPU 3D filament, then keep reading for some inspiration and practical applications.

Industrial Products

For instance, it is a popular material for producing gaskets, seals and bushings for cars and other mechanical products. Tires for toy cars and robots are another popular application for this material, as the rubber-like quality is a perfect fit for wheels and more.

You can also print some great phone cases and tablet covers with TPU as the shock-absorbing properties work well in this case. It is also widely used in the medical industry, where the softness is great for making braces or splints, ergonomic tools and more.

Consumer Products

TPU filament is also an excellent option if you want to print consumer products, especially those for children. TPU soft printing is a great technique, where you can print flexible figurines and soft toys that are safe, durable, and child-friendly.

It is also great for sports and recreational equipment, such as shoe soles, cleats and grips for sports gear like bike handles and racket grips. Not only is TPU flexible and soft to the touch, but it is a non-toxic material that is resistant to wear and tear, and can withstand being outside conditions.

TPU printed toy

Conclusion

Hopefully, this quick guide to TPU 3D printer filament has helped you learn more about the properties, the best settings to print TPU with, and given you some inspiration for specific types of prints you can design and enjoy with this material.
While it is not the most common or popular material in general, it is certainly one of the best when it comes to specific types of products that require a combination of flexibility, durability and impact resistance.

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