Bambu Lab TPU 90A Filament on Spool

Artno.: BL5-851105-P
Manufacturers: Bambu Lab

Bambu Lab TPU 90A is a flexible TPU filament for bendable, impact-absorbing and wear-resistant 3D printed parts. With its Shore hardness of 90A, it offers a strong balance of elasticity and structural integrity, making it ideal for shoe soles, RC tires, dampers, padding, protective gear and functional flexible components.

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37,31 €

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From	Unit Price
2	41,71 €*
4	39,51 €*
6	37,31 €*

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BAMBU LAB TPU 90A FILAMENT

Bambu Lab TPU 90A

Flexible TPU filament with Shore hardness 90A for durable, bendable and wear-resistant 3D printed parts – ideal for shoe soles, RC tires, dampers, protective elements, soft support structures and functional flexible components.

Flexible TPU with increased structural integrity

Bambu Lab TPU 90A combines high flexibility with better shape stability than softer TPU variants. The material is suitable for parts that need to bend, absorb impact or dampen vibration while still offering more structural integrity. Thanks to its high wear resistance, TPU 90A is ideal for moving parts, padding, tires, flexible functional components and durable protective parts.

Important: Print dry and use suitable TPU feeding

TPU 90A is flexible and moisture-sensitive. For clean results, dry the filament before printing, keep it as dry as possible during printing and feed it through a suitable TPU setup or dry filament box. Standard AMS, AMS lite and AMS 2 Pro are not suitable for TPU 90A; when using AMS HT, follow Bambu Lab’s dedicated TPU feeding instructions.

Shore 90A

Flexible and durable

High wear resistance

Not for standard AMS

Highlights

Flexible with structure

Shore 90A provides a strong balance of elasticity, stability and functional durability.

Impact absorbing

Ideal for parts that need to absorb shocks, vibration or repeated bending.

High wear resistance

Very suitable for parts involving movement, friction or repeated contact.

For functional applications

Suitable for shoe soles, RC tires, protective gear, padding and flexible functional parts.

Technical Data

Material	TPU – Thermoplastic Polyurethane
Product Line	Bambu Lab TPU 90A
Shore Hardness	90A
Diameter	1.75 mm
Net Filament Weight	1 kg
Nozzle Temperature	200–250 °C
Build Plate Temperature	30–35 °C
Build Surface	Smooth PEI Plate or Textured PEI Plate; glue recommended
Print Speed	Below 200 mm/s recommended
Chamber Temperature	25–45 °C
Nozzle Recommendation	0.4 / 0.6 / 0.8 mm recommended; 0.2 mm and high-flow nozzle not recommended
AMS Compatibility	Standard AMS, AMS lite and AMS 2 Pro not compatible; AMS HT suitable with dedicated TPU feeding
Drying	70 °C for 8 hours in a forced-air / drying oven or 90 °C for 16 hours on the printer heatbed
Storage / Printing Humidity	Preferably below 20% RH; store sealed with desiccant
Density	1.24 g/cm³
Melting Temperature	180 °C
Breaking Elongation	>650% in X-Y direction; >350% in Z direction
Special Properties	Flexible, impact absorbing, wear resistant, durable under repeated bending and suitable for functional TPU parts

Typical Applications

Shoe Soles

RC Tires

Dampers

Padding

Protective Gear

Flexible Functional Parts

More Information from Bambu Lab

Visit the official Bambu Lab product page for more information about TPU 90A, print recommendations, compatibility and technical material data.

View Bambu Lab TPU 90A →

Printing Recommendation

The elasticity of a TPU part strongly depends on wall loops, infill density, part geometry and print orientation. More wall loops and higher infill density reduce elasticity but increase stability. For flexible functional parts, Shore hardness, wall thickness, infill, moisture condition and load requirements should be tested for the specific application.

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