Tier List

Soft TPU

TPU A40 • Thermoplastic Polyurethane - Low Hardness

C

Unambiguously floppy flexible filament. Has nasty habit of tying itself around drive gear - must maintain constant low speed and watch printer. Seems obvious for wearables but TPU doesn't breathe - instantly sweaty and uncomfortable.

flexibleDry Storage
Print Settings
Print Temp200-230°C
Bed Temp30-50°C
Enclosure:Optional
Material Properties
Strength45
Flexibility90
Heat Resistance50
Resistance Ratings
UV Resistance
Medium
Chemical Resistance
Medium
Humidity Sensitivity
High
Usability
Ease of Printing
(2/5)
Price Tier
$$(Moderate)
Requires dry storage
Pros
  • Very soft
  • Flexible
Cons
  • Ties around drive gears
  • Constant monitoring needed
  • TPU doesn't breathe
  • Uncomfortable for wearables
Use Cases
GasketsVery soft partsDampers

Also known as: soft tpu, shore 40a, flexible tpu

Data sourced from Zack Freedman / Voidstar Lab