I used this filament in my flexible filament comparison video:

Tough 115A 3D Ink® is a proprietary non-toxic thermoplastic blend made exclusively by M3D. Tough 115A is a new formulation of our original Tough filament that offers unprecedented utility for 3D printing due to its strength and controlled amount of flexibility. Tough and Tough 115A are both elastic, resistant to compression loading and, therefore, durable. While more rigid than the original Tough, Tough 115A retains its flexible properties. Both Tough and Tough 115A bond easily and have a high resistance to oils, greases and solvents, making them fit for a variety of industrial applications.

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Technical Specifications:

  • Filament Length: 250ft / 76.2m (why do we sell by length?)
  • Filament Diameter: 1.75mm (not chipped, can be used with almost all 3D printers). The 3-letter code printed on the spool will automatically set the correct extrusion temperature in the M3D software for the Micro, Micro+, and the Pro.
  • Shore Hardness: 115A
  • Material Density (ISO 1183): 1.17g/cm3
  • Recommended Extrusion Temperature: 220 – 240°C
  • Recommended Heated Print Bed Temperature: 45 – 60°C when used, but it is not required
  • Recommended Build Surfaces: M3D printbed sheet, painter’s tape, glue stick, glass plate, PEI
  • Other Printer Requirements: Part cooling fan


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