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  • FilaFlex UltraSoft 70A

    Recreus

    New product

    12 Items

    37,90 €tax excl.
    45,86 €tax incl.

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    The most elastic and soft filament of 3D printing market, reaching 900% stretch.

    Filaflex UltraSoft 70A is the most elastic filament on the market, reaching a 900% stretch until breaking. The Filaflex UltraSoft filament is a TPE filament (Thermoplastic Elastomer) with a polyurethane base and certain additives.

    The Filaflex Ultrasoft 70A filament has an even higher elasticity and smoothness than the Filaflex 82A (Filaflex), with a Shore 70A hardness and an abrasion resistance of 45mm3, being the most elastic and soft filament on the market. Like the Filaflex, the Filaflex Ultrasoft 70A is resistant to solvents, acetone and fuels, but with lower tensile strength and lower softening temperature. The Filaflex UltraSoft 70A has good bonding properties with other types of materials used in the field of 3D printing, such as PLAABSHiPS and some Nylons, resulting in composite pieces with different properties and hardness. Thanks to all the qualities mentioned above, this material has an infinity of applications in all types of fields

    FilaFlex UltraSoft is non-toxic, but not approved for medical or nutritional use. This material doesn't emit odors, is totally odorless and does not produce toxic gases. Due to its high elasticity, it is a complex material to use, since, in certain types of extruders, it's likely to wrap around the pinion of the extruder motor or directly bend the filament already before entering the HotEnd, something that occurs if a Bowden drive system is used. Therefore, this material is recommended only for advanced users and with 3D printers with the Recreus Extruder v3 extruder or with an extruder prepared to print elastic filaments. The "Recreus Extruder v3" is a direct-drive extruder extruder with high quality components created by the manufacturer of the Filaflex UltraSoft 70A, to be able to use this and other flexible materials without any problems and at high speeds compared to the rest of extruders on the market . Another extruder compatible with this material, but not recommended by the manufacturer, is the E3D Titan Aero.

    If you are looking for a flexible material, but at the same time with a certain resistance, you should choose the PLA Soft-Flexible or the Flexfill TPU. Next, the different flexible or semi-flexible materials ordered from lowest to highest according to their shore hardness are shown.

    Filaflex Ulrasoft TPE = Shore 70A < FilaflexTPE= Shore 82APLA Soft= Shore 92ATPU Flexfill = Shore 98A

    It is very advisable to read the following article that will see major challenges confronting the FilaFlex UltraSoft 70A when printing as well as solutions and usage tips. The use of 3D printers with direct drive extruder is recommended (Recreus Extruder V3). If the Filaflex UltraSoft filament is 2.85 mm it is not so easily occurs the problem of filament unguided in the extruder itself as in the case of FilaFlex UltraSoft of 1.75mm.

    When you try to print for the first time the filament FilaFlex UltraSoft 70A is recommended to start with low speeds (20 mm/s) and high temperatures (225 °C). If you don´t have the Recreus extruder or hotend optimized for elastic filaments must use retraction distance 3.5mm, a speed of 20 mm/s, and increase the flow if the filament is intermittent extrusion (between 105-110%). In addition they should reduce the pressure lever arm presses the filament on the motor pulley to prevent the filament choke or jams.

    As you gain experience you can increase the speed and lower the temperature in order to achieve high quality prints. You must use the fan layer because it is liquid enough to melt. As for the extrusion height does not affect the adhesion between layers (Ideal 0.20 mm). The recommended base temperature is 40 ºC. The use of BuildTak, 3DLacKapton tape or Blue Tape is not needed,  for the Filaflex UltraSoft 70A to adhere to bed.

    The manufacturer (Recreus 3D) makes printing profiles (CURA, SLIC3R, CRAFTWARE, KISSLICER or SIMPLIFY3D ) FilaFlex you can download here.

    You can download the manufacturer's safety data sheet, and the technical data sheet in the download tab.

    General information
    ManufacturingRecreus 3D (Spain)
    MaterialTPE (Thermoplastic Elastomer)
    FormatPack of 50g
    Spool of 0.5kg
    Density1.08 g/cm3
    Diameter of filament 2.85 mm
    Diameter tolerance ±0,05 mm
    Filament length ±73 m (Ø 2.85mm-0.5kg)
    ColorNatural
    RAL/Pantone-
    Print settings
    Printing temperature 215-235ºC
    Print bed temperature 40ºC
    Chamber temperature Not necessary
    Cooling fan Recommended
    Recommended printing speed 20-40 mm/s
    Minimum nozzle diameter0.4 mm or more
    Layer height0.2 mm
    Retraction3.5-6.5 mm (20-120 mm/s)
    Mechanical properties
    Izod impact strength-
    Charpy impact strength -
    Elongation at break (DIN 53504-S2)900% 
    Tensile strength (DIN 53504-S2)32 MPa 
    Tensile Modulus-
    Flexural strength -
    Flexural modulus-
    Surface hardness Shore 70A
    Abrasion resistance46 mm3
    Thermal properties
    Softening temperature (ASTM E2092)90ºC 
    Melting temperature 195ºC
    Specific properties
    Transparency -
    Flammability classification UL94HB
    ToxicityNo
    Resistant to solvents, acetone and fuelYes
    Additional Information
    HS Code3916.9
    Diameter coil (outer) 200 mm 
    Diameter coil (inner hole) 53 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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