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Material Guide

TPU
Thermoplastic Polyurethane

Flexible, rubber-like and extremely impact- and abrasion-resistant.

TPU 95A / 95A HFTPU 90ATPU 85A
Printed onP1S + P1P
Nozzle200–250 °C
Bed30–45 °C
Drying70 °C, 8 h
EnclosureNot needed

What TPU is and when to use it

TPU is a flexible, rubber-like material. It bends, stretches and springs back, absorbs impact and resists abrasion — properties no rigid plastic can offer.

It is sold by shore hardness: the lower the number, the softer the material. 95A is firm and flexible, 85A is soft and squashy. Because it is flexible, TPU is printed slowly and dried before use, which is why flexible parts take longer than rigid ones.

Choose it when

  • The part must bend, seal or cushion
  • Protective bumpers, feet and grips
  • Parts that see abrasion or repeated impact

Avoid it when

  • Parts that must stay rigid or carry structural loads
  • Parts exposed to high heat

Print parameters

Nozzle temperature200–250 °C
Bed temperature30–45 °C
Drying70 °C, 8 h — required
EnclosureNot needed
Nozzle typeStandard nozzle / Hardened steel nozzle
PrintersBambu Lab P1S — enclosed, 256 × 256 × 256 mm build volume
Bambu Lab P1P — open frame, 256 × 256 × 256 mm build volume

Typical ranges from the Bambu Lab Wiki filament guide; exact settings depend on the brand and grade.

TPU types and when to use each

Every grade below can be printed on our Bambu Lab printers. Not sure which one fits? Describe the part and we'll recommend one.

TPU 95A / 95A HF

Firm flexible

The firmest common TPU: flexible and abrasion-resistant, but still easy to print accurately. HF grades print faster.

Best for Gaskets and seals · Protective bumpers · Grips

P1SP1P

TPU 90A

Medium flexible

Softer and more flexible than 95A.

Best for Soft grips · Cable strain reliefs · Vibration dampers

P1SP1PHardened steel nozzle

TPU 85A

Soft flexible

The softest grade: rubber-like flexibility for cushioning and soft-touch parts.

Best for Cushioning pads · Wearables · Soft seals

P1SP1PHardened steel nozzle

Need a part in TPU?

Send your file and tell us how the part will be used — we'll confirm the right grade before printing.

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