Carbonfil PETG


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30,99 €
30,99 €

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Much more rigid and resistant PETG filament thanks to the carbon fibre filling.

Carbonfil is one of the filaments developed by Formfutura; a renowned manufacturer of 3D printing materials focused on the development of filaments for 3D FDM printing. Formfutura works continuously on the development of innovative materials for all types of users; from materials with striking surface finishes to advanced filaments aimed at the industrial sector.

Carbonfil is a PETG-based filament with a 20% carbon fibre charge.

The base component of Carbonfil, PETG, is a thermoplastic copolyester (extruded polyethylene terephthalate glycol copolyester). PETG is a modified version of the simpler PET. It is a non-toxic thermoplastic polymer widely used in the manufacture of clothing and products such as containers. Unlike PET filaments, PETG filaments do not crystallize when heated, so they are very hard and flexible, and are also chemically resistant (resistant to water, acids, alkalis and alcohols).

Because of its properties and ease of printing, PETG is gaining much popularity in the field of 3D printing.

Carbonfil filling is made of relatively long carbon fibres optimised for 3D printing. Carbon fibre is a synthetic fibre made up of very fine threads composed almost entirely of carbon atoms. These filaments are so fine that several thousand of them need to be brought together to form a single carbon fibre. These carbon fibres are made from polyacrylonitrile.

The carbon fibre reinforcement improves the overall mechanical properties of the base plastic. In the case of Carbonfil, a much more rigid and impact-resistant PETG filament is achieved than a standard PETG. This rigidity of the Carbonfil filament provides excellent structural resistance.

In addition to this, Carbonfil has excellent layer adhesion, inherited from its thermoplastic base (PETG). It is a very easy material to print because of its low melting temperature and because it has practically no warping effect; therefore it can be printed on almost any 3D FDM printer on the market.

Texture of the Carbonfil filament.

Image 1: Texture of the Carbonfil filament. Source: Formfutura.

It has great dimensional stability, making it an extremely durable material even in adverse environments.

As with other loaded filaments (Nylon AF80, Nylon CF15, PETG CF), it is recommended to use a nozzle of at least 0.5 mm outlet diameter to avoid possible clogging.

In addition, carbon fibre can be quite abrasive and produce wear on standard brass nozzles; therefore, it is recommended to use a hardened steel nozzle such as the E3D hardened steel nozzle or the MK8 hardened steel nozzle.

Carbonfil packaging is environmentally friendly. Carbonfil is presented on a recycled cardboard reel, which is easy to recycle and dispose of. This reel in turn is packed in a recycled cardboard box.

Due to its improved properties compared to a standard PETG filament, Carbonfil is a material oriented to the 3D printing of final parts or functional prototypes that require high mechanical efforts. This material is very useful in the industrial sector, being ideal to replace temporary or permanent functional metal parts with medium loads.

Impact strength (KJ/m2) 8
Elongation at break (%) 8
Tensile strength (MPa) 52
Tensile modulus (MPa) 3800
Flexural modulus (MPa) 4600
Surface hardness 8
Softening temperature (ºC) 85
Fiber reinforced Fiber reinforced
Chemical resistance Chemical resistance
Hide color variations (Hide color variations)

3D printing with PETG filament is just as easy as with PLA filament.

In the case of the Carbonfil filament, it is recommended that the printing base is between 40 and 60 ºC. In addition, the temperature of the extruder should be between 230 and 265 ºC.

In the case of printing large pieces it is advisable to use Buildtak, Kapton TapeMagigoo or DimaFix so that the pieces do not tend to come off the base, although this may not be necessary as Carbonfil has a high adhesion to the printing base.

As with conventional PETG filaments, it is advisable to activate the coating fan.

With this material it is recommended to use a nozzle of 0.50mm diameter or greater, and it is advisable to use a hardened steel nozzle, although this filament has a low level of abrasion.

General information
Manufacturer Formfutura
Material PETG Carbonfil
Format 500 g coil or 50 g pack
Density 1.19 g/cm3
Filament diameter 1.75 or 2.85 mm
Diameter tolerance ±0,05 mm
Filament length 174 m (1.75 mm 500 g)
65 m (2.85 mm 500 g)
Colour Black
RAL/Pantone -
Printing properties
Printing temperature 230 - 265 ºC
Base/bed temperature 40 - 60ºC
Chamber temperature Not required
Coating fan Recommended
Recommended print speed 30-40 mm/s
Mechanical properties
Izod impact resistance  (ASTM D256) 7.9 KJ/m2
Charpy impact resistance -
Elongation at break (ASTM D702) 8 %
Tensile strength (ASTM D702) 52.5 MPa
Tensile modulus (ASTM D702) 3800 MPa
Flexural strength  (ASTM D790) -
Bending modulus (ASTM D790) 4600 %
Surface hardness 109 Rockwell R
Thermal properties
Softening temperature (ASTM E2092) 85 ºC 
Melting temperature -
Specific properties
Transparency (ASTM D1003) -
Gloss value (ASTM D1003 for 20ºC) -
Further information
HS Code 3916.9
Reel diameter (outside) -
Cart diameter (inner hole)  -
Reel width

* The typical values detailed in this table should be considered as a reference. Actual values may vary depending on the 3D printer model used, part design and printing conditions. We recommend that you confirm the results and final properties with your own tests. For further information, please refer to the product data sheet.


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