TPU (Thermoplastic Polyurethane) is a versatile thermoplastic elastomer (TPE) widely used in 3D printing, combining rubber-like flexibility with plastic processability. It is a block copolymer of hard segments (strength) and soft segments (elasticity), available as 1.75mm/2.85mm FDM filament or SLS powder for flexible, durable parts.
Core Properties & Key Advantages
- Rubber-Like Flexibility: Shore hardness 65A–60D; stretches up to 500% elongation at break without cracking.
- High Durability: Excellent abrasion, tear, oil, and chemical resistance; withstands repeated bending.
- Shock Absorption: Dampens vibration and impact, ideal for protective and cushioning parts.
- Wide Temperature Stability: Performs reliably at -20°C to 60°C; resists UV and aging.
- Customizable Flexibility: Adjust hardness (60A–95A) and infill density (10–100%) for soft/rigid balance.
- Good Layer Adhesion: Prints seamlessly with strong interlayer bonds, no delamination.
Common 3D Printing Applications
- Consumer Goods: Phone cases, watch straps, shoe soles, and tool grips.
Industrial Parts: Seals, gaskets, vibration mounts, and non-slip components.
- Healthcare: Orthotic insoles, prosthetic liners, and medical device cushions.
Sports & Outdoor: Protective gear, helmet pads, and flexible equipment parts.
- Automotive: Door seals, bumper cushions, and interior soft trim.
Typical Printing Parameters (FDM)
- Nozzle Temperature: 220–250°C
- Bed Temperature: 40–60°C
- Print Speed: 20–30 mm/s (slower for flexibility)
- Infill Density: 10–20% (soft) / 50–100% (rigid)
Post time: May-07-2026