Filaflex 70A
Filaflex 70A
Filaflex 70A

Filaflex 70A

TPU Filament Filaflex 70A, 'Ultra-Soft', is a highly elastic and advanced filament from the Filaflex range for 3D printers.

  • Shore hardness 70A
  • 900% stretch
  • Very high elasticity
  • Resistant to solvents and fuel
  • Odourless
  • No hotbed required
  • Made in the EU
  • Black
  • White
  • Transparent
  • Nude
  • Red
  • Navy blue
  • 1.75 MM
  • 2.85 MM
  • 500 GR
  • 3 KG

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TPU Filament Filaflex 70A 'Ultra-Soft' is a highly elastic TPU (thermoplastic polyurethane) filament whose properties make it comparable to silicone. It has a shore hardness of 70A, reaching up to 900% stretch before breaking.

The greatest advantage of this flexible TPU filament is its elastic property. After stretching, this flexible filament returns to its original shape without deforming or breaking.

The Filaflex 70A flexible filament is not suitable for All Metal hotends, as the filament may become stuck and not flow properly. It is also not recommended to be printed by machine or 3d printers with bowden type extrusion. However, if you have any doubts, please consult with us and we will advise you.

TPU filaments of the Filaflex range are characterized by their strong adhesion to the print bed, so they do not require a heated bed, blue tape, Kapton tape, lacquer or any other adhesive spray. Additionally, they are odorless and resistant to solvents and fuel. Printing with these filaments requires different guidelines than rigid filaments. Therefore, it is necessary to appropriately configure the 3D printer.


Filaflex 70A is non-toxic and can be in contact with the skin. Consult for medical or food use. It can be used to create pieces that require high elasticity such as:

– Insoles: orthopaedic insoles.

– Prosthesis and organ models: prosthetic arms, hands, organs for simulation of surgical operations,...

– Flexible objects and parts for industry, automotive: buffers, gaskets, tires, grippers ...

– Textile parts and accessories: textile garments, fabrics, printing on garments, bags, earrings,...

– Footwear: soles, shoes, sandals, sneakers,...

Printing temperature
Print speed
20-40 mm/s.
Diameter tolerance
0.04 mm.
Layer height
0,08-0,3 (for 0,4 mm nozzles). Optimal results 0,2 mm.
Retraction speed
35-50 mm/s at a distance of 2.5-6 mm.
Travelling speed
160-200 mm/s.
Shore hardness
860 Items
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Good Filament

It's a good filament and can be printined on a Prusa i3 Mk3S at 20 mm/s. It's *extremely* tear resistant. Don't heat the PEI bed and maybe use Kapton tape, else it will be nigh impossible so separate.

However, 1 star is lost due to claiming it being resistant to acetone and solvents. I'm really a bit confused here, because it actually dissolves really happily in acetone and even ethanol. Can be a good thing though, if you accidentally welded it to your build plate...

Thank you very much for your rating and feedback. It is a great help for other users and for us. We are glad to hear that you were able to print this Filaflex Shore Hardness on your Prusa i3 Mk3S at 20 mm/s. Thanks for your advice, as it will be very useful to other users of this printer. About the resistance to acetone, you are partly right because acetone does not degrade the material in the short term, but with an exposure longer than 3 weeks and at room temperature, it can cause swelling and tensile stress problems in the material. We will correct this information on our website so that it does not cause confusion or problems. Thank you very much for your comments! :)

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