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Prusament PETG Carbon Fiber Black 1kg

What can you expect?

Prusament PETG Carbon Fiber is our classic Prusament PETG filament reinforced with carbon fiber, which improves some of its mechanical properties and gives it an attractive look. Compared to regular Prusament PETG, this material has better dimensional stability, better temperature resistance, higher modulus of elasticity, and is less prone to stringing. On the other hand, its hardness is lower compared to regular PETG. With Prusament PETG Carbon Fiber, you get very durable, professional-looking prints suitable even for outdoor use.

You can inspect the parameters of every spool we made at Check the sample spool!

Prusament extrusion line

Manufactured In-House By Josef Prusa

We were not satisfied with the quality of filaments on the market. So we decided to make our own! Prusa Research is the only 3D printer manufacturer with its own filament production.

Prusament polymer granulate

Premium-Grade Materials And Thorough Testing

The whole manufacturing process is closely monitored and tested – string diameter, color consistency, and mechanical properties – to make sure that every spool is perfect.

Laser device for measuring Prusament quality and tolerance

± 0.02 mm Manufacturing Guaranteed Precision

We believe the industry standard of 0.05 mm isn’t sufficient for perfect 3D printing. Instead, we guarantee ±0.02mm precision and highly-consistent colors in our filaments.

Prusament quality specs on

High Quality You Can Check Yourself

We are the only manufacturer that gives the option to inspect parameters of every filament spool. Scan a QR code on the spool to see all details online (check the sample spool).

More about PETG Carbon Fiber

Prusament PETG Carbon Fiber is our own in-house manufactured filament. PETG Carbon Fiber is based on our Prusament PETG, so it has similar printing properties, but thanks to the addition of carbon fibers, it has better dimensional stability, better temperature resistance, and higher modulus of elasticity. Unlike regular PETG, it is less prone to stringing and has a really nice matte black surface. The carbon fibers inside the filament are obtained by recycling waste from the production process or from carbon composites at the end of their life. Just like with Prusament PETG, we guarantee a manufacturing tolerance of ±0.02mm.

Printing Setup

Nozzle 265±10°C
Heatbed 90±10 °C

Basic Attributes

Strength and durability Lower toughness compared to Prusament PETG
Improved temperature resistance Requires a hardened nozzle
Improved dimensional stability during printing Not suitable for small parts
Higher modulus of elasticity    

Low stringing

Highly attractive matt black surface    
Easy to print    
Almost odorless when printing    


This PETG Carbon Fiber was made in-house at Prusa Research.

This 1.75mm filament has a manufacturing tolerance of ± 0.02 mm.

Before printing, make sure the surface of heatbed is clean as described in 3D Printing Handbook.

To dry the filament, please follow the instructions in our article


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