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PET-G FX120 filament Spectrum Filaments 1,75 mm / 1,0 kg

Flexible PETG FX120 plastic Spectrum Filaments

PET-G FX120 by Spectrum Filaments is a flexible material that has excellent durability and strength. This flexible material is designed specifically for engineering applications where both engineered polymer durability and strength are required. This allows designers to quickly create truly functional parts that can withstand normal use.

Parts made of Spectrum PET-G FX120 filament have high chemical resistance, temperature resistance and can be steam sterilized. The material is adapted to the use of a high level of cooling rate, which makes it possible to obtain a very high quality surface and a significant reduction in fiber tension. The Spectrum PET-G FX120 can be printed at higher operating speeds than other elastomers.

Spectrum PET-G FX120 belongs to the group of rigid elastomers. As a result, it can be used effectively on devices with a Bowden thread feeder, as well as in the increasingly popular multi-material printers - then it can be perfectly combined with the classic PETG thread. The additives used in the development of this material have significantly increased the maximum operating temperature - even up to 120 ° C.

Tip: It is recommended that you print on 3D printers equipped with a heated camera.

PETG FX120 characteristics

  • Dimensional stability.
  • Improved aesthetics.
  • Excellent temperature resistance.
  • Excellent durability.
  • A wide processing range.
  • Low odour.
  • Properties retained in 3D applications.
  • Possibility to steam sterilise.
  • Styrene-free.
  • 95A Shore hardness.

PET-G FX120 usage

  • Production of items to be used as energy adsorbents.
  • Manufacturing of seals with a high chemical resistance.
  • Tooling.
  • End-use parts.
  • Product testing.
  • Elastic damping elements.
  • Protection against ex. sharp edges.

PET-G FX120 flexible for 3D printing excellent durability and strength


A 1.0 kg filament is wound on a transparent spool, which contains information about the type of material, diameter, color and recommended printing temperature. Each coil is packed in a vacuum with a dehumidifier. All in the original Spectrum Filaments foil cardboard.

Coil dimensions

  • Outer diameter - 200 mm.
  • Width - 67 mm.
  • Inner diameter - 52 mm.
  • Weight of empty coil - ± 250 g.

Verify quality of 3D plastic thread 

Spectrum Filaments is the only company in Poland and one of the few in the world that has a tool for testing purchased filaments. VERIFY YOUR SPOOL is the most accurate quality control system on the market, ensuring that Spectrum Filaments products meet his stringent requirements.

Filament for 3D printers is produced by free extrusion, which is one of the most difficult extrusion processing technologies, due to the particularly significant influence of process parameters on product dimensions and material homogenization. During the manufacturing process, each 1mm of Spectrum Filaments is continuously measured in 2 axes with an accuracy of ±0.8 µm, resulting in a quality end product. To prove this, Spectrum Filaments, as one of the few manufacturers in the world, has introduced the possibility of an online presentation, individually for each coil produced:

  • diameter travel along the entire length of the coil;
  • average diameter;
  • ovality;
  • standard deviation.

Buy engineering PETG plastic for 3D printing

FDM materials
Ø Of Plastic (mm) 1,75
Print Temperature (°C) Up to 270
Material PET-G
Diameter Tolerance (mm) +/- 0,05
Density (g/cm3) 1,13
Shore Hardness 95A
Thermal Resistance (°C) Up to 120
Printing Options
Print Temperature (°C) 240 - 260
Bed Adhesive 3DLac, Dimafix, buildTak
Bed Temperature (°C) 80
Heated Bed Necessary
Closed Chamber Recommended
Active Cooling Fan (%) Up to 100
Flowrate (%) 100 - 105
Print Speed (mm/s) 30 - 70
Retraction - Direct (mm) 1 - 3
Retraction - Bowden (mm) 4 - 6
Retraction Speed (mm/s) 25 - 45
Manufacturer Country Poland
Weight & Dimensions
Plastic Weight (kg) 1,0
Weight Brutto (kg) 1,4

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