QIDI PET-CF filament – black, 1 kg

Technical PET filament reinforced with carbon fibers

QIDI PET-CF combines the technical polymer PET with 15% short carbon fibers. The result is a strong and exceptionally stiff material with high dimensional stability, good chemical resistance, and resistance to long-term mechanical loads.

Compared to standard PETG, it offers higher stiffness, strength, and wear resistance. Low shrinkage and a limited tendency to warp help maintain precise geometry even in larger technical models.

Ideal for functional components

QIDI PET-CF is particularly suitable for:

mechanically stressed functional parts,
holders, jigs, and assembly tools,
covers and machine components,
construction prototypes,
parts requiring high stiffness and precision,
components exposed to oils, lubricants, and selected chemicals.

Stable and precise printing

Carbon reinforcement reduces internal material stresses and improves the dimensional stability of prints. The filament has a low tendency to warp and, with the correct settings, enables sharp details and precisely fitting mechanical components to be printed. A heated chamber is not required, but the manufacturer recommends an enclosed 3D printer.

Recommended printing settings

Parameter	Recommended value
Nozzle temperature	280–320 °C
Build plate temperature	80 °C with an adhesive agent
Printing speed	40–200 mm/s
Drying	100 °C for 4–8 hours
Humidity during printing and storage	less than 15 % RH
Recommended nozzle	hardened steel or bimetal, 0,4–0,8 mm

Important instructions before printing

Carbon fibers are abrasive, so do not use a standard brass or copper-plated nozzle. A nozzle made of hardened steel, bimetal, or another wear-resistant material is recommended. A nozzle with a diameter of 0,2 mm is not compatible.

Although PET-CF has low moisture absorption, damp filament can cause bubbles, material oozing, and a rough surface. Dry it before use and keep it in an enclosed dry box with relative humidity below 15 % during printing.

For reliable adhesion, use PEI, HF, or a smooth print plate together with a suitable adhesive or adhesion spray.

Key features:

Technical PET filament with 15% carbon fiber content
High strength and exceptional stiffness of printed parts
Very good dimensional stability and low warping tendency
Resistance to creep, wear, and long-term loads
Good thermal and chemical resistance
Printing speed of up to 200 mm/s
Low moisture absorption
Suitable for precise functional and structural parts
A heated print chamber is not required
Supplied on a high-temperature-resistant spool

Vlastnosti

Barva	Černá
Hmotnost bez obalu	1 kg
Manufacturer	QIDI Tech
Material	PET reinforced with carbon fibers
Composition	85 % PET, 15 % short carbon fibers
Net filament weight	1 kg
Filament diameter	1,75 mm ± 0,02 mm
Color	Black
Color code	#212322
Nozzle temperature	280–320 °C
Print bed temperature	80 °C with an adhesive agent
Printing speed	40–200 mm/s
Recommended nozzle	Hardened steel or bimetal, diameter 0,4 / 0,6 / 0,8 mm
Recommended drying	100 °C for 4–8 hours
Recommended humidity during printing	Less than 15 % RH
Density	1,3 g/cm³
Melting temperature	251 °C
Vicat softening temperature	148,8 °C
Heat deflection temperature under load	86,7 °C
Melt flow index	6,8 g/10 min
Tensile strength	72,51 ± 1,39 MPa
Elongation at break	2,49 ± 0,22 %
Flexural strength	114,47 ± 1,89 MPa
Flexural modulus	5345,71 ± 231,24 MPa
Impact strength	7,75 ± 1,08 kJ/m²
Recommended print surfaces	PEI, QIDI HF, or a smooth print plate
Heated chamber	Not required; an enclosed printer is recommended