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The color of the 3D printed part can change depending on the amount of foaming (the more foaming, the lighter the color will be)
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ColorFabb is a Netherlands-based company dedicated to the development and production of FDM/FFF 3D printing filaments. The company is constantly developing and excels in the production of innovative materials designed for specific applications. VarioShore TPU Prosthetic is a variation of VarioShore TPU designed specially for printing prosthetics and orthotics. This filament consists of 92A TPU characterised by variable shore hardness, weight and densit, as well as silver due to its beneficial properties for prosthetic and orthotic applications.
The ColorFabb VarioShore TPU Prosthetic comes in skin-colored tones (developed in collaboration with Lubrizol): Natural, Pale Pink, Medium Brown, and Dark Brown. The color diversity allows for the creation of prosthetics and orthotics that patients will feel comfortable using. The skintone color is further modifiable by adjusting the printing temperature - lower printing temperature results in more intense colors and higher printing temperature activates the foaming agent, resulting in a more powder-like skintone color and a softer appearance.
TPU, thermoplastic polyurethane, is a flexible material with some elasticity. It offers good chemical resistance, UV resistance and smooth surfaces. In the case of VarioShore, the TPU used is Shore 92A, which determines its degree of hardness. In addition to the TPU, VarioShore contains a foaming agent (the same technology was used in the LW-PLA filament) that is distributed throughout the filament, activated at high temperatures and releases a gas that causes the filament to acquire a foamy texture.
The degree of foaminess and, consequently, the density of the material and its Shore hardness, can be modified depending on the printing speed, the layer height and the printing flow. Thus, by modifying these parameters, the user can achieve different densities in the same 3D printed part with this material. In the unfoamed state the parts with have a Shore hardness of 92 A and in the maximum foamed state the Shore hardness will be of 55 A.
If you work at a 3D printing temperature between 200 - 250 °C, the material will expand 1.4 - 1.6 times its original volume, which is equivalent to printing at low flow rates of around 60 - 70 % to produce the foam. Printing at temperatures between 190 - 200°C will produce harder parts without foam.
With Varioshore TPU Prosthetic it is possible to produce parts with low density and with areas of varying hardness in the same part while maintaining a soft touch. This innovative filament for FDM/FFF 3D printers from ColorFabb is most suitable for the additive manufacturing of prosthetics and orthotics due to its contents of silver. Colorfabb's VarioShore TPU Prosthetic is without doubt an innovative material, ideal for users who wish to produce parts with a foam finish or with variations in density and hardness without sacrificing the properties of TPU.
Elongation at break (%) | 465 |
Tensile strength (MPa) | 24 |
Tensile modulus (MPa) | 50 |
Flexural strength (MPa) | 3 |
Flexural modulus (MPa) | 50 |
Surface hardness | 92 Shore A |
Flexibility | Flexibility |
Medical use | Medical use |
ColorFabb recommends a 3D printing temperature of 195 - 260 ºC, a printing speed of 40 - 100 mm/s and a bed temperature of 50 - 60 ºC. If foamy parts are desired, the layer fan should be deactivated.
It is crucial to store the VarioShore TPU Prosthetic filament properly as processing of moist filament may cause degradation of polymer chains, brittleness, poor layer adhesion, stringing and oozing. It is best to store the filament in a tightly sealed bag with a desiccant or in a vacuum sealed filament container.
General Information | |
---|---|
Manufacturer | ColorFabb |
Material | VarioShore TPU Prosthetic |
Format | 700 g Spool 2000 g Spool |
Density | 1.2 g/cm3 (Variable) |
Filament Diameter | 1.75 mm 2.85 mm |
Diameter Tolerance | ± 0.05 mm (1.75 mm) ± 0.1 mm (2.85 mm) |
Filament Length- | ±242.5 m (Ø 1.75 mm - 700 g) ±692.9 m (Ø 1.75 mm - 2000 g) ±91.4 m (Ø 2.85 mm - 700 g) ±261.3 m (Ø 1.75 mm - 2000 g) |
Color | Natural, Pale Pink, Medium Brown, Dark Brown |
RAL/Pantone | - |
Printing Properties | |
Printing Temperature | 195-260 ºC |
Bed Temperature | 50-60 ºC |
Chamber Temperature | ✗ |
Layer Fan | Not recommended for generating foam. 50 -100 % activated for overhangs. |
Recommended Print Speed | 40-100 mm/s |
Mechanical Properties | |
Izod Impact Strength | - |
Charpy Impact Strength (ISO 179) | 40 kJ/m² |
Elongation at Break (ISO 527) | 465 % |
Tensile Strength (ISO 527) | 24 MPa |
Tensile Modulus (ISO 527) | 50 MPa |
Flexural Strength (ISO 178) | 3 MPa |
Flexural Modulus (ISO 178) | 50 MPa |
Surface Hardness (ASTM D-2240) | Shore 92 A (Variable) |
Thermal Properties | |
Softening Temperature | - |
Melting Temperature | 130 ºC |
Specific Properties | |
Transparency | ✗ |
Gloss Value | - |
Additional Information | |
HS Code | 3916.9 |
Reel Diameter (Outer) | - |
Reel Diameter (Inner Hole) | - |
Reel Width | - |
* 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 advise confirming the results and final properties with your own tests. For more information, consult the product's technical data sheet.
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