Bambu Lab PET-CF (1.75mm, Black)

High-Quality Filament for Your 3D printer

Product Features:

  • Very Low Moisture Absorption
  • Exceptional Mechanical Properties
  • High Dimensional Stability
  • Exceptional Thermal Resistance
  • Comes with High Temperature Reusable Spool
  • Diameter: 1.75mm +/- 0.03mm

Cautions for Use:

  • 0.2 mm Nozzle Not Compatible
  • Stainless Steel Nozzle Not Recommended
  • Dry out before use
  • AMS NOT Compatible

NOTE: 3D Universe is authorized to sell this product in the United States of America, only.

Sold Out ($44.99)

Bambu PET-CF is a blend of tough PET and carbon fiber. Bambu PET-CF has excellent high-temperature resistance, excellent strength, heat resistance, dimensional stability and low moisture absorption make Bambu PET-CF an ideal choice for load-bearing structures or prints used in high-temperature and humid environments.

Bambu PET-CF

Bambu PET-CF is a blend of tough PET and carbon fiber. Carbon fiber improves hardness and mechanical strength, while still help maintain the low warping and shrinkage of ordinary PET. Bambu PET-CF has excellent high temperature resistance and a soft glow appearance. Its excellent strength, heat resistance, dimensional stability and low moisture absorption make Bambu PET-CF an ideal choice for load-bearing structures or prints used in high temperature and humid environments.

Low moisture absorption

In saturated water absorption conditions, the strength and stiffness of PET-CF have small losses, making it suitable for prints used in high humidity environments.

Normal PA-CF:
Loading Weight: 1 kg

Bambu PET-CF
Loading Weight: 1 kg

The test models have a span of 220 mm and a thickness of 3 mm in unloaded state.


High dimensional stability

Due to the creep and warping resistance of PET-CF, prints can achieve excellent matching accuracy.

Specimens size (L*W*H): 240*8*15 mm³

Infill density: 60%

Exceptional Thermal Resistance

• Specimen size (L*W*H): 95*10*4 mm³
• Test conditions: Specimens were put in an oven at 70 °C and 150 °C respectively for 0.5 hour.
* As a crystalline material, PLA will significantly deform only after the temperature exceeds its melting point (around 155°C).


Printing Setup

  • 0.6 mm Hardened Steel Nozzle (Recommended)
    0.4 mm / 0.8 mm Hardened Steel Nozzle (Capable)
  • Enclosed printer (Recommended)
    Open frame printer (Capable)*
  • AMS NOT compatible

*Layer bonding of some prints may become low due to overcooling.

Parameters Comparison



PET, carbon fiber

PA 12 and other long-chain PA, carbon fiber

Hotend Compatibility

Hardened Steel 0.6 (recommended), 0.4, 0.8 mm

Hardened Steel 0.6 (recommended), 0.4, 0.8 mm

Build Plate Compatibility

Engineering Plate, High Temperature Plate, Textured PEI Plate

Engineering Plate, High Temperature Plate, Textured PEI Plate


Glue Stick / Liquid Glue
Glue Stick

AMS Compatibility


Print Speed
< 100 mm/s

< 100 mm/s

Toughness (Impact Strength - XY)

36.0 kJ/m²

57.5 kJ/m²

Strength (Bending Strength - XY)

131 MPa

125 MPa

Stiffness (Bending Modulus - XY)

5320 MPa

4230 MPa

Layer Adhesion (Impact Strength - Z)

4.5 kJ/m²

80 MPa13.3 kJ/m²

Heat Resistant(HDT, 0.45 MPa)

205 °C

194 °C

Saturated Water Absorption Rate / % (25 °C,55% RH)






Accessory Compatibility

Recommended Not Recommended

Build Plate                      

Engineering Plate, High Temperature Plate or Textured PEI Plate

Cool Plate


Hardened Steel Nozzle(0.4 / 0.6 / 0.8 mm)

Stainless Steel Nozzle (0.2 / 0.4 mm)


Bambu Glue Stick

Bambu Liquid Glue

Recommended Printing Settings

Drying Settings (Blast Drying Oven):
80 °C,8 - 12 h

Printing and Keeping Container's Humidity:
< 20% RH (Sealed,with Desiccant)

Nozzle Temperature:
260 - 290 °C

Bed Temperature (with Glue):
80 - 100 °C

Printing Speed:
< 100 mm/s

Physical Properties

1.29 g/cm³

Vicat Softening Temperature:
226 °C

Heat Deflection Temperature:
205 °C

Melting Temperature:
250 °C

Melt Index:
25.3 ± 2.5 g/10 min

Mechanical Properties

Tensile Strength:
74 ± 6 MPa

Breaking Elongation Rate:
54.5 ± 1.2 %

Bending Modulus:
5320 ± 270 MPa

Bending Strength:
131 ± 6 MPa

Impact Strength:
36.0 ± 2.7 kJ/m²

Frequently Asked Questions

What is the difference between PET-CF and PETG-CF?
The primary difference between PET-CF and PETG-CF lies in their base material. PETG-CF is a reinforced material made by adding carbon fiber to glycol-modified polyethylene terephthalate (PETG), while PET-CF is to polyethylene terephthalate (PET). The key difference 'G' in PETG stands for glycol. PETG is a glycol-modified version of PET that contains small amounts of glycol as a co-monomer. The addition of glycol to PETG reduces its crystallinity and makes it more transparent. However, it also reduces its strength and stiffness.

The difference in application between PETG-CF and PET-CF?
PETG-CF is a versatile basic material that is suitable for printing everyday items, such as bent, folded, and movable parts, due to its excellent toughness and ease of printing. PET-CF, in contrast, contains a greater amount of carbon fiber and is significantly stronger and more temperature resistant compared to PETG-CF. PET-CF is a professional-grade engineering material that is suitable for use in more complex and demanding environments.

What is PET-CF used for?
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.


Printing Tips

• Drying conditions: 80℃ for 8 hrs. PET-CF is highly sensitive to humidity. To achieve optimal printing performance, it is recommended further drying before use and after storage. For more details, please refer to:Filament drying instructions on WIKI.

• To prevent the material from absorbing moisture, it is recommended to use an airtight storage container with desiccant during printing. For more details, please refer to:Printing tips for Engineering materials on WIKI.

What's in the Box?

Filament with Spool*1 & Desiccant*1

Filament Label*1


Get the Quality Filament You Need

Nothing will impact your 3D printing results like the kind of filament you use. Good filament is highly consistent in diameter, is wound evenly onto the spool with just the right amount of tension, and will not tangle when being unwound. 3D Universe offers a wide range of high-quality filaments to choose from. We provide a 100% satisfaction guarantee on all filament we sell. If you have any problems, just send back the unused portion of the spool for a full refund. Check out our filament collection...

Save More on 3D Printer Gear

Join our mailing list to get the Deal of the Week along with other goodies. You will receive at most ONE very useful email per week.
Hate SPAM? We do too! We respect the privacy of our subscribers.

Subscribe Today!