Features and Benefits of NinjaFlex Filament
- Shore Hardness = 85A
- Truly flexible (no fill or layer manipulation required to achieve performance)
- 660% elongation allows for repeated movement and impact without wear or cracking
- Polyurethane composition allows for excellent vibration reduction
- Proprietary low-friction exterior allows for smooth feeding
- Abrasion resistance 20% better than ABS and 68% better than PLA
- Consistent diameter and material properties providing reliable, high-quality prints
- Chemical resistance to many materials. View the NinjaFlex Chemical Resistance Guide for more information.
- REACH and RoHS 3 (EU 2015/863)
Applications
Sports
From sneaker insoles to helmet inserts, NinjaFlex can protect athletes with its vibration dampening properties.
Explore Sports ApplicationsHealthcare
NinjaFlex is strong and flexible for applications like prosthetics and realistic organ prototypes.
Explore Healthcare ApplicationsIndustrial Manufacturing
Test your new designs with a 3D-printed prototype or quickly create end-use parts for your equipment.
Explore Manufacturing ApplicationsAnimal Leg Replacement Carriage
Wheels printed from NinjaFlex filament enable a smooth ride for the animal while providing durability to withstand various terrains.
Credit: Dive Design

Protective Helmet Insert
When printed in various patterns NinjaFlex can provide a unique level of flex to fit your needs. See how our material was an innovation for these lacrosse helmet parts and prototypes.
Credit: Cascade Lacrosse
Soft Robotic Grippers
The flexibility and low durometer of NinjaFlex lends itself well to movement of soft robotics.
Credit: Cody Umberger
Animal Leg Replacement Carriage
Wheels printed from NinjaFlex filament enable a smooth ride for the animal while providing durability to withstand various terrains.
Credit: Dive Design

Protective Helmet Insert
When printed in various patterns NinjaFlex can provide a unique level of flex to fit your needs. See how our material was an innovation for these lacrosse helmet parts and prototypes.
Credit: Cascade Lacrosse
Soft Robotic Grippers
The flexibility and low durometer of NinjaFlex lends itself well to movement of soft robotics.
Credit: Cody Umberger
Animal Leg Replacement Carriage
Wheels printed from NinjaFlex filament enable a smooth ride for the animal while providing durability to withstand various terrains.
Credit: Dive Design
Print Guidelines
Extruder Temperature
- 225°C – 250°C
Platform Temperature
- Room temperature to 50°C
- Glue is suggested on bed.
Print Speed
- Top and bottom layers: 10-20 mm/sec (600-1200 mm/min)
- Infill speeds: 15-35 mm/sec (900-2100 mm/min)
- Layer 2+ use cooling fan if available.
Tech Specs
As the first flexible material on the market, NinjaFlex® TPU filament has proprietary technology that boasts a low-tack, easy-to-feed texture ideal for direct-drive extruders. The material has abrasion and chemical resistance and results in consistent printed parts.
Don’t see the filament you need? Schedule a custom filament consultation with our 3D Materials Engineering team.
How Can We Help?
If you’ve got a 3D printing issue, challenge or question, our team is here to help.