SLS TPU Parameters
SLS TPU, is a 3D printing material that is created using selective laser sintering (SLS) technology.
SLS TPU is a flexible and elastic 3D printing material made from thermoplastic polyurethane. It's known for its excellent flexibility, durability, and resistance to abrasion. SLS technology uses a laser to fuse fine TPU powder into solid layers, making it suitable for creating complex and flexible parts. SLS TPU is commonly used for producing items such as gaskets, seals, soft-touch grips, shoe soles, and other applications where a combination of flexibility and strength is required.
| Technology | SLS |
| Material | TPU |
| Original Color | Black/White |
| Thermal Deformation | 80-120°C (ISO 11357) |
| Hardness | 85-90A (ISO 11357) |
| Surface Situation | Rough Granular |
| Printing Platform Size | 198*108*200mm |
| Flexural modulus | 70-85 Mpa(DIN EN ISO 178 ) |
| Flexural strength | 6.2 Mpa(DIN EN ISO 178 ) |
| Tensile modulus | 60-80 MPa (ISO 527) |
| Tensile strength | 18 MPa (ISO 527) |
| Elongation at break | 150-280 % (DIN 53504) |
| Tolerance | The local accuracy of the product is between 0.25-0.35mm~3.5 ‰, while overall accuracy is hard to control |
| Post Process | Silkscreen |
| Wall thickness required | 1 mm above, big parts according to 3D drawings |
The advantages of SLS TPU are:
1.Flexibility and Elasticity: TPU is known for its flexibility, elasticity, and rubber-like properties, allowing for the creation of parts that can bend, stretch, and return to their original shape, making it ideal for applications requiring durability and resilience.
2.High Impact Resistance: TPU exhibits excellent impact resistance, making it suitable for producing parts that need to withstand mechanical stress and sudden impacts.
3.Chemical Resistance: TPU has good resistance to various chemicals, oils, and solvents, enhancing its durability in different environments.
4.Good Temperature Resistance: TPU can withstand a wide range of temperatures, making it suitable for applications where exposure to varying temperature conditions is expected.
5.Lightweight: TPU is a lightweight material, providing the advantage of reduced weight in applications where weight is a critical factor.
6.Versatile Applications: Due to its flexibility and durability, SLS TPU is versatile and finds applications in areas such as footwear, automotive components, sporting goods, medical devices, and more.
7.Complex Geometries: SLS technology allows for the creation of intricate and complex geometries with TPU, making it suitable for producing parts with detailed designs.
The disadvantages of SLS TPU are:
1.Limited Strength: TPU, while flexible and elastic, may have lower mechanical strength compared to some other 3D printing materials, making it less suitable for parts requiring high structural integrity.
2.Surface Finish: SLS-printed TPU parts may have a slightly rough or grainy surface finish compared to injection-molded TPU, impacting the overall aesthetic quality.
3.Material Cost: TPU can be relatively more expensive compared to other 3D printing materials, affecting the overall cost of 3D-printed parts.
4.Layer Bonding Issues: Achieving strong layer-to-layer bonding in SLS TPU parts can be challenging, affecting the overall strength and durability of the printed object.