Bambu Lab PET-CF

Bambu Lab PET-CF

Product features

• Very low moisture absorption

• Excellent mechanical properties

• High dimensional stability

• Excellent heat resistance

• Comes with high temperature reusable coil

• Diameter: 1.75mm +/- 0.03mm

Usage warnings

• 0.2mm nozzle not compatible

• Stainless steel nozzle not recommended

• Dry before use

• Requires printer with cabinet

• AMS & AMS lite NOT compatible

Bamboo PET-CF

Bambu PET-CF is a blend of robust PET and carbon fiber. Carbon fiber improves hardness and mechanical strength, while helping to maintain the low shrinkage and warping of regular PET. Bambu PET-CF has excellent heat resistance and a soft glowing surface. Its impressive strength, heat resistance, dimensional stability and low moisture absorption make Bambu PET-CF an ideal choice for load-bearing structures or prints used in hot and humid environments.

Low moisture absorption

Under conditions of water saturation and full water absorption, PET-CF experiences only small losses in strength and stiffness, making the material suitable for 3D printing to be used in high humidity environments.

Normal PA-CF

Load weight: 1 kg

Bamboo PET-CF

Load weight: 1 kg

The test models have a span of 220 mm and a thickness of 3 mm in the unloaded state.
The thickness of the material is 3 mm before loading.

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High dimensional stability

Due to PET-CF's resistance to creep and warping, 3D printing can achieve excellent fit and high matching accuracy.

Specimen size (L × W × H): 240 × 8 × 15 mm³
Infill density: 60%

Extraordinary thermal resistance

Specimen size (L × W × H): 95 × 10 × 4 mm³
Test conditions: The test pieces were placed in an oven at 70 °C and 150 °C for 0.5 hour, respectively.

As a crystalline material, PLA will only deform significantly when the temperature exceeds its melting point (approximately 155 °C).

Print setup

0.6 mm hardened steel nozzle (recommended)
0.4mm/0.8mm hardened steel nozzle (supported)

Embedded printer (recommended)
Open frame printer (can be used)*

AMS not compatible

Layer adhesion in some prints may become weak due to excessive cooling (overcooling).

Accessory compatibility

Accessories	Recommended	Not recommended / Not recommended
Printed circuit board / building board	Cool Plate SuperTack, Smooth PEI Plate, Textured PEI Plate	–
Hotend	Hotend with hardened steel nozzle 0.4 mm / 0.6 mm (recommended) / 0.8 mm	Hotend with stainless steel nozzle (all sizes)
Glue	Glue stick / glue stick	Bamboo Liquid Glue

Frequently Asked Questions

What is the difference between PET-CF and PETG-CF?

The primary difference between PET-CF and PETG-CF is their base material. PETG-CF is a reinforced material consisting of glycol-modified polyethylene terephthalate (PETG) with carbon fiber added, while PET-CF is based on regular polyethylene terephthalate (PET) reinforced with carbon fiber.
The letter "G" in PETG stands for glycol , which is a co-monomer that is added to PETG in small amounts. The addition of glycol reduces the crystallinity of the material and makes PETG more transparent. However, it also means that the strength and stiffness are lower than in PET-CF.

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What is the difference in application between PETG-CF and PET-CF?

PETG-CF is a versatile standard material that is suitable for 3D printing everyday parts – especially bent, folded and moving components – as it has high toughness and is easy to print with.
PET-CF, on the other hand, contains a larger amount of carbon fiber and has significantly higher strength and temperature resistance than PETG-CF. PET-CF is a professional engineering material , which is suitable for use in more demanding and complex environments.

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What is PET-CF used for?

Due to its high dimensional stability and low moisture absorption, PET-CF is a better choice than nylon for functional parts that will be used in high humidity environments .
In addition, the high temperature resistance and minimal tendency to warping make the material ideal for mechanical assembly and assembly parts, such as automotive accessories, brackets, fixtures and other components for mechanical assembly .

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Parameter comparison

You can find more comparisons between different filament types in the Bambu Filament Guide >

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Parameters	PET-CF	PAHT-CF
Composition	PET, carbon fiber	PA 12 and other long-chain PA types, carbon fiber
Hotend compatibility	Hotend with hardened steel nozzle 0.4 mm / 0.6 mm (recommended) / 0.8 mm	0.4 mm / 0.6 mm / 0.8 mm hardened steel nozzle*
Build plate compatibility	Cool Plate SuperTack, Smooth PEI Plate, Textured PEI Plate	Smooth PEI sheet, Textured PEI sheet
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)	131 MPa	125 MPa
Stiffness (flexural modulus – XY)	5320 MPa	4230 MPa
Layer Adhesion (Impact Strength – Z)	4.5 kJ/m²	13.3 kJ/m²
Heat resistance (HDT, 0.45 MPa)	205 °C	194 °C
Heat resistance (HDT, 0.45 MPa)	205 °C	194 °C
Water absorption at saturation / % (25 °C, 55 % RH)	0.37	0.88

Recommended print settings

Parameters	Setting
Drying settings (hot air drying oven / blast drying oven)	80°C, 8–12 hours
Humidity during printing and storage	< 20% RH (sealed container with desiccant)
Material and print room humidity	< 20% RH (closed/sealed with desiccant)
Nozzle temperature	260–290 °C
PCB temperature (with glue)	80–100°C
Print speed	< 100 mm/s

Physical properties

Property	Value
Density	1.29 g/cm³
Vicat softening temperature	226 °C
Heat Deformation Temperature (HDT)	205 °C
Melting point	250°C
Melt Flow Index	25.3 ± 2.5 g/10 min

Mechanical properties

Property	Value
Tensile Strength	74 ± 6 MPa
Elongation at break	4.5 ± 1.2%
Flexural modulus	5320 ± 270 MPa
Bending strength	131 ± 6 MPa
Impact strength	36.0 ± 2.7 kJ/m²

Download

Filament TDS

Filament MSDS

Filament RoHS

Printing tips

• Drying settings: 80℃ for 8 hours. PET-CF is very sensitive to moisture. To achieve the best print quality, it is recommended to dry the filament further before use and after storage . See more under the filament drying guide on WIKI .

• To prevent the material from absorbing moisture, it is recommended to use an airtight storage container with desiccant during the printing process. See more printing tips for technical engineering materials on WIKI .

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