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

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