2.85 mm, 3.5 kg Carbon Fiber Extreme Black PETG PRO
This listing is the 2.85 mm filament diameter in a 3.5 kg spool. Use it only with a printer and filament path designed for 2.85 mm filament; it is not interchangeable with 1.75 mm filament.
Engineering-grade PETG resin and USA-made milled carbon fiber create a deep opaque black, slightly textured finish. The reinforcement is milled fiber, not carbon powder or dust. Consider it for rigid prototypes, fixtures and housings where PETG suits the application.
Reinforcement does not guarantee impact toughness, a particular service temperature or warp-free printing. Evaluate part geometry, layer orientation, loads and operating environment.
Printing the 2.85 mm version
Published nozzle temperature: 240–265°C. Heated bed: 60–78°C. Use a wear-resistant nozzle with an opening of 0.40 mm or larger. The 2.85 mm filament diameter and nozzle opening are different specifications; the hot end must also accept 2.85 mm filament.
This filament is mildly abrasive to print nozzles. Tune flow, retraction, cooling and speed for your printer and part geometry. Keep filament dry and store it sealed with desiccant between prints. Follow suitable product and equipment instructions if drying is needed.
Larger-spool handling
Check that your holder or rack fits and securely supports the 3.5 kg spool while allowing it to rotate freely. Arrange a smooth feeding path without unnecessary drag. Confirm both filament-diameter compatibility and spool capacity before using an enclosed feeding system.
Quality and specifications
Nominal filament diameter: 2.85 mm. Spool size: 3.5 kg. Published diameter tolerance, described as combined XY volumetric variation: ±0.02 mm or better. Published roundness (ovality): ±0.02 mm or better.
Other sizes and sample options
Carbon Fiber Extreme Black PETG PRO 1 kg listing
Carbon Fiber Extreme Black PETG sample listing
These are separate listings. Confirm the selected filament diameter before ordering a smaller spool or sample; do not assume the linked option is 2.85 mm.
2.85 mm Carbon Fiber PETG PRO FAQ
Will this work in a 1.75 mm printer?
No. This listing is 2.85 mm filament and requires a compatible extruder, filament path and hot end.
Does a 0.40 mm nozzle mean 0.40 mm filament?
No. The nozzle opening is a separate measurement. Use an opening of 0.40 mm or larger on a hot end designed for 2.85 mm filament.
What temperatures should I start with?
Published guidance is 240–265°C nozzle and 60–78°C heated bed. Tune for your printer and build surface.
What should I check for the 3.5 kg roll?
Check holder fit, load capacity and free rotation, and ensure a smooth feeding path compatible with 2.85 mm filament.
Are the linked samples and smaller spools also 2.85 mm?
Do not assume so. Check the diameter offered on each linked listing before ordering.
