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Material
Carbon Fiber PETG

Carbon Fiber PETG

Composites
Wear resistantChemical resistantStrongDurable

Carbon fiber PETG is a composite made by blending standard PETG with chopped carbon fiber, typically 10-20% by weight. The fibers substantially increase stiffness – tensile modulus can run several times higher than standard PETG – along with better dimensional stability under load. This comes with a real trade-off, though: Despite being stiffer, carbon fiber PETG is generally more brittle and has lower impact resistance than standard PETG, which makes it a weaker choice for parts that need to absorb sudden shocks or drops. It does retain PETG's resistance to moisture and many common chemicals. Carbon fiber PETG is well suited to jigs, fixtures, drone frames, and mounting brackets that need to resist bending or flexing under load.

Print with Carbon Fiber PETG
Mechanical Properties
Tensile strength35–58 MPa
Tensile modulus2460–4900 MPa
Elongation3–10 %
Flexural strength70–82 MPa
Flexural modulus2910–5790 MPa
Density1.08 g/cm³
Thermal
Heat deflection at 66 PSI70–94 °C
Heat deflection at 264 PSI80–90 °C
Print Constraints

Maximum build volume

750 × 780 × 950 mm

Min wall thickness1 mm
Min detail size0.8 mm
Default layer height0.2 mm
Default infill20%
Min embossing0.4 mm
Min engraving0.4 mm
Accuracy± 0.4 mm
Warping riskModerate
Interlocking partsSupported

Available finishes

Each finish can be combined with the available colors at checkout.

Standard

Standard

9 colors

The standard (as-printed) finish on FDM parts shows the natural texture of layer-by-layer printing. The visibility of the layer lines depends on part geometry and orientation, plus light marks where support material was removed.

Sanded

Sanded

9 colors

The sanded finish on FDM parts reduces the visibility of layer lines compared to the standard finish, though some surface texture generally remains. How much smoothness is achieved can vary depending on the material.

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