TPU (Thermoplastic Polyurethane) is a flexible, rubber-like material ideal for phone cases, gaskets, wearables, and any part that needs to bend or compress.
Properties
- Flexibility — Highly elastic, rubber-like feel
- Abrasion Resistance — Excellent wear resistance
- Impact Resistance — Absorbs shock well
- Chemical Resistance — Good resistance to oils and greases
- Layer Adhesion — Excellent bonding between layers
Best Practices
- Direct drive extruder strongly recommended (bowden is very difficult)
- Print slow (20-30mm/s) for consistent results
- Minimal or no retraction to prevent jamming
- Disable or reduce part cooling
- Handle with care when removing from bed — TPU is very grippy