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.
| 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 PVP Glue) |
80 - 100 °C |
| Printing Speed |
< 100 mm/s |
| Physical Properties |
| Density |
1.29 g/cm³ |
| 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/m² |
Download Filament TDS
Download Filament MSDS
Printing Tips
• Bambu PET-CF needs proper drying before printing: recommended drying temperature is 80 ℃ for 5 hours in a blast drying oven, 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.