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  • Flexfill 98A TPU "Signal Red" View larger

    Flexfill 98A TPU Signal Red


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    28,06 €tax excl.
    33,95 €tax incl.

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    Flexible material with a certain elasticityUV resistance and high resolution, in red colour.

    "Signal Red" Flexfill 98A TPU (Thermoplastic Polyurethane) 3D printer filament is a flexible material with a certain elasticity. It is a filament very similar to the PLA Soft but with added properties such as resistance to greases, oils and solvents that make it more useful for industrial applications. In addition another advantage with respect to the PLA Soft is its greater adhesion between layers.

    Another of the flexible filaments resembling this TPU filament is the Filaflex-TPE (Thermoplastic Elastomer) filament which due to its greater flexibility and elasticity presents a greater complexity of impression than the own "Signal Red" Flexfil 98A TPU (1.75mm or 2.85mm). The Flexfil 98A (Hardness Shore 98A) TPU 3D filament is harder than the Filaflex-TPE (Shore Hardness 82A) and very similar to the Soft-Flexible PLA (Shore Hardness 92A). This increased stiffness of the "Signal Red" Flexfill 98A TPU filament makes it easier to print on 3D printers without the adapted extruder which normally causes problems when printing very flexible filaments such as TPE. In spite of this, TPE filaments such as Filaflex are probably still the most used flexible filaments due to their greater similarity to rubber and their greater elasticity and softness, although it should be noted that the Flexfill 98A filament is added in order to achieve a greater smoothness.

    Other major advantages of a TPU filament such as the Flexfill 98A versus another TPE filament such as the Filaflex are, for example, higher abrasion and UV resistance, better retention of elastic properties at lower temperatures and higher print resolution than the TPE so it is more suitable for technical parts that need more accuracy.

    As for the printing temperature, bed and density (1.20-1.22 g/cm3), both the Flexfill 98A and the Filaflex are very similar, but the main difference is that with the "Signal Red" Flexfill 98A TPU filament can be printed at a faster speed (20-30mm/s) than with the Filaflex (15 mm/s).

    So, if you are looking for flexible and elastic parts but you have not been able to print them with a TPE filament, this is the ideal filament. Also in printers with two heads you can use the Flexfill to add an additional layer on the rigid base material to create a surface that is soft to the touch.

    Elongation at break (%) 318
    Tensile strength (MPa) 53.7
    Tensile modulus (MPa) 444
    Surface hardness 6
    Softening temperature (ºC) 90
    Flexibility Flexibility
    Machinable Machinable
    Abrasion resistance Abrasion resistance
    Vibration resistance Vibration resistance
    Chemical resistance Chemical resistance

    It is advisable to use Magigoo, 3DLac or BuildTak in the base of the 3D printer so that the first Flexfill 98A TPU filament layer adheres correctly. As for the ideal bed temperature is between 30 and 50 °C, the recommended printing temperature is between 200-220 °C and the recommended printing speed is 20-30 mm/s. In case of problems of printing due to sliding of the filament in the head is advised not to use retraction and increase the flow in case the extrusion is intermittent, also in small parts it is also advisable to print always without retraction and with fan of the driven layer.

    General information
    Manufacturer Fillamentum (Czech Republic)
    Material TPU Flexfill 98A (Thermoplastic polyurethane)
    Format Pack of 50g
    Spool of 500g
    Density 1.23 g/cm3
    Diameter of filament 1.75 or 2.85 mm
    Diameter tolerance ±0,10 mm
    Filament length ±169 m (Ø 1.75 mm-0.5 kg)
    ±64 m (Ø 2.85 mm-0.5 kg)
    Color "Signal Red"
    RAL/Pantone RAL 3001 / -
    Print settings
    Printing temperature 220-240ºC
    Print bed temperature 50-60ºC
    Chamber temperature Not necessary
    Cooling fan Recommended
    Recommended printing speed 20-30 mm/s
    Mechanical properties
    Izod impact strength  -
    Charpy impact strength -
    Elongation at break (DIN 53504) 318% 
    Tensile strength (DIN 53504) 53.7 MPa 
    Tensile Modulus (ISO 6721) 444 MPa
    Flexural strength -
    Flexural modulus -
    Surface hardness Shore 98A / Shore 60D
    Abrasion resistance (ISO 4649) 23 mm3
    Thermal properties
    Softening temperature (ASTM E2092) 90ºC 
    Melting temperature 215ºC
    Specific properties
    Transparency  -
    Additional Information
    HS Code 3916.9
    Diameter coil (outer) 200 mm 
    Diameter coil (inner hole) 55 mm 
    Coil width 50 mm 

    * 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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