Nanovia Istroflex pneu flexible noir
Nanovia Istroflex filament FDM flexible a base de coquille d'huîtres
Nanovia Istroflex pneu flexible noir

ISTROFLEX : Biodegradable flexible

Nanovia Istroflex is a flexible filament with and excellent inter layer adhesion. Based on oyster powder and a biodégradable polymer, Nanovia Istroflex can be composted.



3D Printing

Extrusion T°250 – 280°C
Plate T°20 – 50 °C
Enclosure T°Ambiant
Nozzle> 0,4 mm
Printing speed20 – 60 mm/s
Diametre1.75 & 2.85 mm +/- 50µm
Linear Weight2.69 @ Ø 1.75 mm
7.15 @ Ø 2.85 mm
ColoursCream, black

For a bettter print result, desactive the printer’s retraction option.

Mechanical Properties

Density1.12 g/cm3 (ISO 1183)
Tensile modulus60 MPa (ISO 527)
Elong. at break>300% (ISO 527)
Stressat break11.5 MPa (ISO 527)
Hardness93 Shore A, 44 Shore D

Thermal Properties

Tg-32 °C
Melt Flow rate (MFR)10.50 g/10 min – 230°C, 2.16 kg
FlammabilityHB UL 94 @ 1.6mm


Download the technical chart Download the security chart

Using Nanovia Istroflex, biodegradable oyster shell based composite 3D filament, 3D print every day use flexible projects.

Its flexibillity is perfectly suited for technical parts that require a certain amount of give or bounce such as shock and vibration absorbers, silent blocks, gaskets, interstitial constricted materials, etc…

Developed in conjunction with the technical platform ComposiTIC and Usine de Kervellerin in 2015, Nanovia Istroflex 3D filament was awarded the CCI Morbihan innovation award.


  • Flexible
  • Biodegradable and compostable
  • Excellent inter layer adhesion
  • ROSH heavy metal free certified
  • Endocrine pertubatur free certified


Nanovia Istroflex is available in two colours:

  • Native / beige
  • Black

User photos

flexible tube printed using nanovia istroflex made by objet maker

Flexible tube printed with Nanovia Istroflex – made by Objet Maker

flexible gasket printed using nanovia istroflex made by objet maker

Flexible gasket printed with Nanovia Istroflex – made by Objet Maker

Twisted flexible gasket 3D printed using nanovia istroflex made by objet maker

Flexible gasket printed with Nanovia Istroflex – made by Objet Maker

Support flexible imprimé en 3D avec le filament nanovia istroflex crée par Innovatech 3D

3D printed flexible support made using Nanovia PLA Flax – created by Innovatech 3D

Clé de vis flexible imrpimé par Co.Ben

Flexible wrench, see the timelapse – created by Co.ben

Pieuvre flexible anti-stress imrpimé par Co.Ben

Flexible anti-stress octopus, see the timelapse – created by Co.ben

Application recommendations


  • Store Nanovia Istroflex in a dry and dark location, if possible with a desiccant.
  • In order to guarantee good printing conditions dehydrate Nanovia Istroflex at 60°c for 4 hours or longer, when the spools has been exposed to moisture for an extended period.


  • Extrusion temperature : between 250 and 280°C
  • Heated bed temperature : between 40 and 70°C

Post treatment

  • It’s not possible to sand Nanovia Istroflex

Health and safety


Nanovia Istroflex contains is a heavy polymer, based on biodegradable monomers and cosmetic grade oyster shells.

Food safety

Nanovia’s Istroflex’s raw materials conform to European Commission’s ruling n°10/2011: materials and plastic objects destined to come into contact with food ; modified on February 5th 2015 by UE ruling n°2015/174.

According to this ruling, the migration should be measured on finalized products in contact with food wares in standard temperature and duration conditions.

Please consult the material safety sheet for more information.


“Le matériau ISTROFLEX® utilisé pour fabriquer, au mieux de notre connaissance, n’a pas été intentionnellement fabriqué ou formulé avec les substances énumérées à l’article 4.1 de la directive européenne CE / 65/2011 (RoHS): Les métaux lourds (tels que cadmium, le chrome hexavalent, le plomb et le mercure), biphényles polybromés (PBB), les éthers diphényliques polybromés (PBDE).”

Par conséquent, la matière première ISTROFLEX® est en conformité avec les exigences de l’article 4.1 de la directive européenne CE / 65/20011

Endocrine disruptor test:

1 Method OEDT – SERPBIO Laboratory. Sample : NANOVIA 3D filament Istroflex.

Study: Measuring the activity of the human estrogenic receptors expressed in S. cerevisiae (SW303.1B)

Every measurement is reproduced 3 times independently with the different contents of the tested sample

Results: The obtained data shows that the tested product does not influence the measured activity

Note on the ratio of circulating plasmic œstradiol: With menopaused women / with men: * [4×10-11M – 2×10-10M] with pre menopaused women (excluding ovulation): [1×10-10M – 5×10-10M] / with women (ovulation): [2×10 -9m] * a value is considered critical when it exceeds [2×10-11M].

CONCLUSION: The tested material can be considered absent of endocrine disruptors.


Spools are packed in individual boxes, sous-vide with desiccant. Spools are equipped with both a material traciblity and a production series number.

Other sizes available up to 25kg on demand


Additional information

Max temperature

55 °C