Bambu Lab PET-CF Basic Filament

Description

Looking for Bambu Labs PET-CF Basic Filament in Australia?

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: 1kg.

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

High Dimensional Stability

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

Specimens size (L*W*H): 240*8*15 mm

Infill density: 60%

Exceptional Thermal resistance

Specimen size (L*W*H): 95*10*4 mm
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

	PET-CF	PAHT-CF
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/m	57.5 kJ/m
Strength (Bending Strength – XY)	149 MPa	140 MPa
Stiffness (Bending Modulus – XY)	5080 MPa	4120 MPa
Layer Adhesion (Impact Strength – Z)	4.5 kJ/m	13.3 kJ/m
Heat ResistantHDT, 0.45 MPa	205 C	194 C
Saturated Water Absorption Rate / % (25 C55% RH)	0.37	0.88

Recommended Printing Settings

• Drying Settings before Printing – 80 C8 – 12 h
• Pringting and Keeping Container’s Humidity – < 20% RH (Sealed, with Desiccant)
• Nozzle Temperature – 260 – 290 C
• Bed Tempreature (with PVP Glue) – 80 – 100 C
• Printing Speed – < 100 mm/s

Physicial Properties

• Density – 1.29 g/cm
• Vicar 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/m

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.

Included

• 1x Filament & Desiccant
• 1x Filament Label

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