Sep 08


 FLEX 45 is a very flexible rubber replacing filament for 3D printing. The combination of flexibility, mechanical strength, durability and good resistance to chemicals and extreme temperatures makes it a unique filament. This BIO performance Thermoplastic Co-Polyester has a high carbon content of renewable materials resulting in a less environmental impact. Finally, FLEX 45 exhibits excellent UV resistance.

FLEX 45 features:

  • Very flexible
  • Strong
  • Long term heat resistant
  • Good chemical resistance
  • UV resistant
Sizeø toleranceRoundness
1,75mmø 0,05mm95%
2,85mmø 0,10mm95%
DescriptionTestmethodTypical value
Specific gravityISO 11831,14 g/cc
MFR 260ºC/5 kgISO 113352 g/10 min
Tensile strength at breakISO 52724 MPa
Strain at breakISO 527530%
Tensile modulusISO 52795 MPa
Impact strength - Charpy notched 23˚CISO 179N.B.
Shore Hardness ISO 86845D
DescriptionTestmethodTypical value
printing temp.DF245±10˚C
melting temp.ISO 11357180˚C
vicat softening temp.ISO 30638˚C


FLEX 45 is available from stock in 5 colours.
For non stock colours a minimum of  40kg ± 10% is required.



FLEX 45 is available in nearly any type of  packaging and labelling. Ask our team to help you customizing your product.

Additional info:

Recommended temperature for heated bed is ± 100˚C. Various other options (also without heated bed) are possible depending on the type and size of the object to be printed.
FLEX 45 can be printed better at a lower speed, due to its flexibility.
FLEX 45 can be used on most common desktop FDM or FFF technology 3D printers.


Cool and dry (15-25˚C) and away from UV light. This enhances the shelf life significantly.