CarbonX CFR Carbon Fiber Reinforced Co-Polyester Filament Made in the USA using premium PETG and High-Modulus Carbon Fiber (not carbon powder or milled carbon fiber). CarbonX CF-PETG is an improved CF reinforced 3D printing filament vs. the competition. This filament is ideal for anyone that desires a structural component with high modulus, excellent surface quality, dimensional stability, light weight, and ease of printing. Print industrial-grade CF-PETG parts with Gearbox HT2 High-Temp 3D Printer. Check it out HERE. Carbon fiber reinforced filaments are abrasive and can wear out a brass or aluminum nozzle. We recommend our A2 Hardened Steel Nozzles