Crystal Flex™ (SBC)



Product images are for illustrative purposes only and may differ from the actual product. Colours of products may also appear different to those shown on the site.


Filament category Nozzle Temp Nozzle: 230 – 260 °C

Filament category Bed Temp Printbed: 80 – 100 °C

Filament category Speed Speed: 40 – 80 mm/s

Filament category Speed copy 2 Fan: 0 – 30%

Crystal Flex (styrene-butadiene copolymer) yields formability, toughness, and clarity into is a high-performance semi-flexible 3D printer filament. Crystal Flex meets the specifications of the United States FDA Food Packaging Regulation 21 CFR 177.1640 and complies with UL 94 HB flammability standards.


Key features

  • Excellent clarity
    • Very clear filament with 92% light transmittance and high surface gloss
  • Semi-flexible, bendable and resilient
    • Shore hardness of 63D and bendable up to 230% without causing white stress marks
  • Food contact acceptable
  • UL 94 HB flammability rating
  • Compatible with Helios Support for complex multi-extrusion 3D printing


  • Fit testing
  • Lighting
  • Bottles, boxes, containers and (blister) packaging
  • End-use parts
  • Medical and lab equipment

General printing guidelines *

Nozzle size: ≥ 0.15mm Layer height: ≥ 0.1mm Experience level: Beginner / Intermediate
Print temp: ± 230 – 260° C Fan speed: 0-30%  
Heat bed: ± 80 – 100° C Enclosure needed: No

*) Above displayed settings are meant as guidance to find your optimal print settings. These ranges in settings should work for most printers, but please do feel free to experiment outside these ranges if you think it is suitable for your printer. There is a lot of different type of printers, hot-ends and printer offset that it is extremely difficult to give an overall one-size-fits-all setting.

Additional information
Weight N/A
Dimensions N/A

1.75 mm, 2.85 mm


0.5 kg

FormFutura Colors


Filament Manufacturer


Filament Type


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