X60 Ultra-Flexible Filament – Black


Finally a filament that utilizes the full potential of the Flexion Extruder. This is, by far, the most flexible filament on the market. It feels like a rubber band, and produces finished parts that are completely tactile, flexible no matter what infill you use, and highly functional for applications that require stretch, flexibility, or compliance. Since it will only work the Flexion, you can print parts that nobody else can!

SKU: 5121SKUBK Category:


Flexion X60 Ultra-Flexible Filament is the softest filament available on the market today, by far. At Shore 60A, it is much softer than Ninjaflex or Filaflex. It is about the flexibility of an inner-tube. This materials is perfect for that ultra-flexible application: rubbery toys, comfortable wearables, parts that need to stretch to fit, gaskets, releasable molds, and so much more.

  • Made by COEX in the USA to the highest quality
  • Non-toxic.
  • Incredible flexibility and elasticity.
  • Diameter of 1.75; variations ± 0.05 mm; roundness ± 0.05 mm
  • Only printable with the Flexion Extruder or H-Series Machine. Recommended for use with the standard hotend (not HT).
  • Shipped vacuum-sealed with desiccant to keep it free of moisture (not prone to moisture absorption, but best to be careful)

Technical Data Sheet

Recommended print settings:

  • Print on unheated, solvent-cleaned polymer surface such as Buildtak, PEI, Kapton, or Vinyl hairspray
  • Recommended print temperature 210°C ± 5°C (NEVER approach or exceed breakdown temperature of 230°C)
  • Print speed – up to 40mm/s. Start very slow (20mm/s) and work up from there. Slow down for bridging and infill.
  • Extrusion multiplier – up to 1.25 compared to rigid material, depending on your tension settings
  • Extrusion width – 105% of nozzle diameter (0.42 for a 0.4mm nozzle)

Additional information

Weight N/A
This material is quite safe, relative to other 3D printer materials. As with every material, it is recommended to enclose and ventilate your print. Do not exceed 225C, because the material begins to breakdown into potentially hazardous components. Adjust your filament load temperature to ensure you do not approach this limit. Please find the MSDS below for more details (coming soon).  

X-60 Black MSDS