PCTG GF - New filament with a fiberglass

PCTG+GF filament is our new product for 3D print enthusiasts. This material combines the strength and versatility of modern copolyester with the unique properties of glass fiber. It is a technical filament for 3D printing with a high impact strength. That makes it an ideal for advanced projects where typical polymers are not enough.

Fiberglass (10%) adds unique capabilities to the filament. This creates a product with greater strength and stiffness, while maintaining resistance to external conditions and chemicals. The properties of the PCTG GF filament make it ideal for printing machine parts, tools or outdoor applications.

Fiberlogy PCTG+GF, as the evolution of Fiberlogy PCTG filament, is a guarantee of trouble-free printing. Low shrinkage, excellent table adhesion and the ability to print in all 3D printers without a closed chamber, make this filament be used on any printer. Its users will also appreciate the matte, rough finish, giving the models a perfect look.


  • PROTOTYPING: functional prototypes, specialized tools, low-volume production
  • AUTOMOTIVE: elements of covers, connectors, housings of electronic components
  • ELECTRONICS: enclosures with increased resistance to impacts, chemicals and temperatures
Diameter Net weight Colors
1.75 mm 0.75 kg

PCTG+GF properties:

  • high impact and tensile strength
  • chemical and thermal resistance
  • a matte finish that makes it easy to hide layers
  • low shrinkage and the ability to print on open printers

How to print PCTG+GF?

The following parameters are only suggested print settings for this material. To ensure the best print quality, it is necessary to choose the appropriate settings for a specific printer and printing conditions.


Nozzle Temperature 250-270°C
Bed Temperature 90-110°C
Closed chamber not required
Fan 0-25%
Flowrate 90-100%
Printing Speed 35-60 mm/s
Surface masking tape, PVA glue, hairspray
Retraction (direct) 1-2 mm
Retraction (bowden) 3-5 mm
Retraction Speed 20-45 mm/s
Drying conditions 60°C / 4h
Notes The material has highly abrasive properties. We recommend the use of hardened steel or ruby nozzles.
Due to the strong adhesion to the bed, it is not recommended to print directly on its surface or on glass. This can lead to damage. We recommend using a masking tape.

Filament PCTG GF Fiberlogy

Diameter Diameter tol Oval tol Printing temp Table temp
1.75 mm +/- 0.02 mm + 0.01 mm 250-270°C 90-110°C

Colors: PCTG+GF

Fiberlogy PCTG+GF Natural


Fiberlogy PCTG+GF Black


Fourth dimension
of printing