3D-Fuel PET-CF is a blend of tough PET and carbon fibers. Carbon fiber improves hardness and mechanical strength while helping maintain low warping and shrinkage compared to regular PET.

Due to its dimensional stability and lower water absorption rate, PET-CF is a better choice than nylon for printing functional parts used in high-humidity environments. Also, its high-temperature resistance and low warping make it suitable for printing mechanical assembly parts, such as automotive accessories and fixtures.

Our PET-CF has excellent high-temperature resistance and a soft, matte appearance. Its excellent strength, heat resistance, dimensional stability, and low moisture absorption make 3D-Fuel PET-CF an ideal choice for load-bearing structures or prints used in high-temperature and humid environments.

Polyethylene terephthalate (PET) is a semicrystalline polyester commonly used in soda bottles and automotive parts when reinforced with a fiber filler. This material has an outstanding price-to-performance ratio. When annealed, it exhibits a temperature resistance of over 155 °C and good chemical resistance to common solvents.

Why PET-CF?

PET-CF delivers outstanding dimensional stability and absorbs far less moisture than nylon, making it a smarter pick for printing functional parts in high-humidity environments. Its excellent heat resistance and minimal warping also make it ideal for mechanical assemblies—everything from automotive components to custom fixtures that need to stay strong and precise.

TECHNICAL DETAILS:

Temperature resistance: 125C (unannealed)
Temperature resistance: 155C (annealed)

KEY FEATURES:

Excellent price-to-performance ratio
Good stiffness and strength
Very low warping
Very low moisture absorption
Good temperature, chemical, and wear resistance

APPLICATIONS INCLUDE:

Jigs, fixtures, tooling
Functional prototypes
Brackets
Automotive parts
Component housings

NOTES:

All metal hotend with steel or hardened nozzle required
Nozzle Diameter: 0.5 mm or larger recommended
If the filament has absorbed moisture, dry the filament at 80C for 12h

PRINTING PARAMETERS:

Hot end temp: 280 - 290C
Heated bed temp: 80 - 100C
Build plate: smooth or textured PEI recommended
Print speed: 40-80 mm/s
Minimum 0.2 mm layer height
Cooling: 20% fan speed maximum, off is preferred to improve layer to layer adhesion
Print profiles coming soon for Bambu X1C & H2D and Qidi Plus 4

TECHNICAL DATA SHEET

1.75mm Fiber-Reinforced