Linear thermoplastic urethane elastomers, or TPE-U/TPU, are block copolymers of polyols and diisocyanates pioneered by BF Goodrich in the late 1950s. Their varying polymer ratios yield materials ranging from semi-rigid to highly elastic, finding use in various industries and applications cable coatings, hose manufacturing, textiles, shoe soles, waterproofing, vibration dampening, and consumer product components.
Urethane-based elastomers stand out for their high resistance to wear and abrasion, high tensile strength, good damping capacity, good toughness and resistance to fats and oils. In addition, TPU is compatible with the skin and has a high resistance to fungi, which makes it suitable even for medical or orthopedic applications.
Flexa Black is a TPE-U based material specially formulated by Sinterit for its Lisa and Lisa Pro printers. It is a general-purpose linear elastomer that allows its hardness to be varied between 70 and 90 Shore A depending on the settings selected during printing.
Flexa Black offers excellent mechanical properties such as a tensile strength of 3.7 MPa with a deformation at break of 136 %. It also stands out for being 100% reusable, so it is not necessary to add new refreshment material.
Flexa Black is an ideal material for soft-touch components in prototypes and short series, anti-vibration components, gaskets or impact protectors. Together with PA12 Smoth, Flexa Black one of the essential materials for any user of Lisa or Lisa Pro.
General information |
|
| Manufacturer | Sinterit |
| Material | TPU |
| Format | 4 L, 2 kg / 12 L, 6 Kg |
| Technology | SLS |
| Average granulation | 50 µm |
| Compatible 3D printers | Lisa, Lisa Pro, Lisa X, Nils 480 |
Mechanical properties |
|
| Izod impact strength | - KJ/m² |
| Charpy impact strength | - KJ/m² |
| Elongation at break | (ISO 37) 137 % |
| Tensile strength | (ISO 37) 3.7 MPa |
| Tensile modulus | - MPa |
| Flexural strength | - MPa |
| Flexural modulus | - MPa |
| Surface hardness | (ISO 868) Shore 70 - 90 A |
Thermal properties |
|
| Melting temperature | 160 ºC |
| Softening temperature | (ISO 306) 86 ºC |
Other |
|
| HS Code | 3908.1 |
| General information | |
|---|---|
| Manufacturer | Sinterit |
| Technology | SLS |
| Material | Thermoplastic polyurethane |
| Format | 4 L bottle (2 Kg) |
| Granulation | 20 - 105 µm |
| Material refreshing ratio | 0 % |
| Color | Grey |
| Compatible 3D printers | Lisa, Lisa Pro |
| Mechanical properties | |
| Tensile strength | 3.7 MPa (PN-EN ISO 37-2007) |
| Tensile Modulus | - |
| Elongation at break | 137 % (PN-EN ISO 37-2007) |
| Flexural strength | - |
| Flexural modulus | - |
| Charpy impact strength | - |
| Surface hardness | 70 - 90 Shore-A (PN-EN ISO 868:2005) |
| Thermal properties | |
| Softening temperature | 67.6 ºC (PN-EN ISO 306:2014-02) |
| Melting point | 160 ºC (Sinterit's internal procedure) |
| Heat deflection temperature B | - |
| Surface roughness | |
| Mean roughness (Ra) in XZ/YZ planes | - |
| Mean roughness (Ra) in XY plane | - |
| Mean roughness depth (Rz) in XZ/YZ planes | - |
| Mean roughness depth (Rz) in XY plane | - |
* The typical values detailed in this table should be considered as a reference. Actual values may vary depending on the 3D printer model used, part design and printing conditions. We recommend confirming the results and final properties with own tests. For more information you should consult the technical data sheet of the product.
| General information | |
|---|---|
| Manufacturer | Sinterit |
| Technology | SLS |
| Material | Thermoplastic polyurethane |
| Format | 4 L bottle (2 Kg) 12 L bottle (6 Kg) |
| Granulation | 20 - 105 µm |
| Material refreshing ratio | 0 % |
| Color | Black |
| Compatible 3D printers | Lisa, Lisa Pro |
| Mechanical properties | |
| Tensile strength | 3.7 MPa (PN-EN ISO 37-2007) |
| Tensile Modulus | - |
| Elongation at break | 136 % (PN-EN ISO 37-2007) |
| Flexural strength | - |
| Flexural modulus | - |
| Charpy impact strength | - |
| Surface hardness | 70 - 90 Shore-A (PN-EN ISO 868:2005) |
| Thermal properties | |
| Softening temperature | 67.6 ºC (PN-EN ISO 306:2014-02) |
| Melting point | 160 ºC (Sinterit's internal procedure) |
| Heat deflection temperature B | - |
| Surface roughness | |
| Mean roughness (Ra) in XZ/YZ planes | - |
| Mean roughness (Ra) in XY plane | - |
| Mean roughness depth (Rz) in XZ/YZ planes | - |
| Mean roughness depth (Rz) in XY plane | - |
| Aditional information | |
| HS Code | 3908.1 |
* The typical values detailed in this table should be considered as a reference. Actual values may vary depending on the 3D printer model used, part design and printing conditions. We recommend confirming the results and final properties with own tests. For more information you should consult the technical data sheet of the product.
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A general-purpose linear elastomer, specially formulated for Lisa and Lisa Pro.
