Material
MJF Flexible TPU
MJF flexible TPU is a rubber-like, tear-resistant material with high rebound and good abrasion resistance that's suited to flexible functional prototypes and wear-prone parts.
Manufacturing processes
About
MJF flexible TPU (thermoplastic polyurethane) is a firm, rubber-like material (Shore hardness 88–90A) that bends and can stretch to several times its length.
It is tear-resistant, resists abrasion, and absorbs shock well, but isn't strong like rigid plastics and stretches about half as far across the layers. Parts soften at around 97 °C (and are therefore best kept below roughly 80 °C), and sustained compression can leave a permanent set. Flexible parts are only dimensionally stable to a limited extent.
MJF flexible TPU is commonly used for footwear, sports equipment, protective housings, and industrial tubes.
Technical Details
- Accuracy
- ±1.8% (lower limit of ±1.5 mm)
- Density
- 1.12 g/cm³
- Min. wall thickness
- 0.8 mm
Technical Properties
- Tensile strength
- 7 - 20 MPa
- Tensile modulus
- 60 - 85 MPa
- Tensile elongation
- 220 - 500%
- Flexural strength
- 6.2 MPa
- Flexural modulus
- 70 - 86 MPa
- Default layer height
- 0.15 mm
- Default infill
- 100%
- Embossing
- min. 1 mm
- Engraving
- min. 1 mm
- Interlocking parts
- Yes
- Warping risk
- Moderate
- Maximum printing dimensions
- 450 × 450 × 450 mm