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Bambu Lab PET-CF



X1 Series and P1P Exclusive

• Dry out before use
• AMS NOT compatible

Do drop by our show room here to view the printer in action!

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.

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.

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.

Parameters Comparison

Learn more different filaments comparison on Bambu Filament Guide >>

Price/kg $84.99 $94.99
Composition PET, carbon fiber PA 12 and other long-chain PA, carbon fiber
Hotend Compatibility Hardened Steel 0.6 (recommended), 0.4, 0.8 mm
Build Plate Compatibility Engineering Plate, High Temperature Plate, Textured PEI Plate
Glue Glue Stick / Liquid Glue Glue Stick
AMS Compatibility NO Yes
Print Speed < 100 mm/s < 100 mm/s
Toughness (Impact Strength – XY) 36.0 kJ/m² 57.5 kJ/m²
Strength (Bending Strength – XY) 149 MPa 140 MPa
Stiffness (Bending Modulus – XY) 5080 MPa 4120 MPa
Layer Adhesion (Impact Strength – Z) 4.5 kJ/m² 13.3 kJ/m²
Heat Resistant(HDT, 0.45 MPa) 205 °C 194 °C
Saturated Water Absorption Rate / % (25 °C,55% RH) 0.37 0.88
Recommended Printing Settings
Drying Settings before Printing 80 °C,8 – 12 h
Printing and Keeping Container’s Humidity < 20% RH (Sealed,with Desiccant)
Nozzle Temperature 260 – 290 °C
Bed Temperature (with PVP Glue) 80 – 100 °C
Printing Speed < 100 mm/s
Physical Properties
Density 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 76 ± 5 MPa
Breaking Elongation Rate 4.1 ± 0.5 %
Bending Modulus 5080 ± 210 MPa
Bending Strength 149 ± 4 MPa
Impact Strength 36.0 ± 2.7 kJ/m²


Download Filament TDS

Printing Tips

• Bambu PET-CF needs proper drying before printing: recommended drying temperature is 80 ℃ for 5 hours in filament dryer, or 90 ℃ for 10 hours on heat bed. (Do not exceed 100 ℃ because the spool may melt). For more details, please refer to:Printing tips for Engineering materials 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



Weight 1 kg
Dimensions 22 × 21 × 9.5 cm
Bambu Lab PET CF

1 KG, 1/2 KG


Diameter 1.75 ± 0.03 mm Net Weight
1 KG per spool
Length 324 m Filament Type PET-CF
Printing Temp
260-290 ℃ Bed Temp 80-110°C


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