Tier List

TPU (99A Durometer)

TPU 99A • Thermoplastic Polyurethane - High Hardness

S

Harder than a skateboard wheel - basically rigid but with perfect layer adhesion and immunity to shattering. The definitive choice for combat robots, tactical gear, and anything that needs to survive extreme abuse.

flexibleDry Storage
Print Settings
Print Temp220-250°C
Bed Temp40-60°C
Enclosure:Optional
Material Properties
Strength95
Flexibility35
Heat Resistance65
Resistance Ratings
UV Resistance
Medium
Chemical Resistance
Medium
Humidity Sensitivity
High
Usability
Ease of Printing
(4/5)
Price Tier
$$(Moderate)
Requires dry storage
Pros
  • Near-indestructible
  • Perfect layer adhesion
  • Will never shatter
  • Surprisingly easy to print
  • Supports work reasonably well
Cons
  • Bonds permanently to most build surfaces (use glue stick)
  • Absorbs water aggressively
  • Requires dry storage
  • Can be stringy if not dialed in
Use Cases
Combat robotsTactical gearPhone casesProtective equipmentImpact-resistant parts

Also known as: hard tpu, rigid tpu, shore 99a

Data sourced from Zack Freedman / Voidstar Lab