Siraya Tech Fibreheart PET-CF TDS
1. PRODUCT INTRODUCTION
- Enhanced Performance & Reliability: Expertly blending PET with carbon fiber for increased strength and stiffness.
- Smart Fiber Reinforced Technology: Carbon fibers form a mesh structure, enhancing mechanical properties and dimensional stability.
- Superior Dimensional Stability: Reduced warping and shrinkage, maintaining precise dimensions and shapes.
- Lightweight Durability: Balancing strength with a lightweight profile, ideal for durable yet lightweight components.
2. APPLICATIONS
- Automotive industry, drones, Industrial machinery, Architecture and construction: hoods, door panels, drone, robot parts, frames of precision instruments, etc.
- Sports equipment: bicycle frames, golf clubs, tennis rackets, snowboards, etc.
- Consumer electronics: Electronic product casing, providing a lightweight and strong protective structure.
Find more PET-CF details here
3. Property Data
| Mechanical Properties | Unannealed | Annealed | Method |
| Tensile Stress at Break (MPa) | 65 | 60 | ISO 527 |
| Young’s Modulus (MPa) | 4680 | 5300 | ASTM D638 |
| Elongation at Break(%) | 2.9 | 1.9 | ASTM D638 |
| Charpy impact strength (KJ/m^2) | 7 | 5 | |
| Bending Strength (MPa) | 95 | 92 | |
| Bending Modulus (MPa) | 4450 | 4730 | |
| Vicat softening temperature °C | 220 | ||
| Glass Transition Temperature | 135 | ||
| IZOD Impact (Notched 72F) kJ/m | 36 | ||
| Heat Deflection Values | 80.5°C / 91.5°C | / | Method A / B |
| Melting Point (C) | 251 | ||
| Filament Density g/cm3 | 1.3 | ISO 1183 |
4. Preparing for Printing
Drying: PET materials are sensitive to moisture, which can affect the performance during printing and the quality of the final product. Ensure the material is dried.
Siraya Tech PET-CF (and all of our filaments) are dried before being sealed in an aluminum bag, which protects them from moisture for up to 3 years. It can be use directly without drying. It's recommended to dry at 90°C for 4-6 hours. Only dry if filament shows signs of moisture.
Bed Temperature: Recommended bed temperatures range from 70°C to 90°C to
help the first layer adhere better.
First Layer Settings: The first layer is critical for a successful print. Ensure the bed is level and the first layer print speed is slightly reduced to enhance adhesion.
5. Print setting for Fibreheart PET-CF
| Nozzle Temperature | 280-320°C |
| Recommended Nozzle Diameter | 0.4-1.0mm (hardened steel or higher grade) |
| Recommended Build Surface | PEI or coat with PVP glue stick |
| Build Plate Temperature | 60-80°C |
| Raft Separation Distance | 0.08-0.12mm |
| Cooling Fan Speed | Off |
| Print Speed | 30-120mm/s |
| Max Extrusion Volumetric Speed | 20mm3/s at 320°C |
| Retraction Distance | 1-3mm |
| Retraction Speed | 1800-3600mm/min |
6. Moisture Management
Sealed Packaging: When not in use, store PET material in a sealed aluminum foil bag to prevent moisture ingress.
Use Desiccants: Include desiccants during storage to absorb any potential moisture, keeping the material dry.
Avoid Direct Sunlight and High Temperatures: Store PET materials in an environment that avoids direct sunlight and high temperatures to prevent material degradation.
Temperature Control: It's best to store PET materials at room temperature; both overheating and excessive cooling can affect the printing performance and quality of the material.
7. Troubleshooting Common Issues
Stringing: If you notice stringing between parts of your print, reduce the printing temperature by 5-10 degrees. Also, adjust the retraction settings—increase retraction distance and speed to pull the filament effectively away from the nozzle during travel moves.
Moisture Problems: If the filament has absorbed moisture, which can cause popping sounds and poor surface quality, dry the filament. Use an oven set at 100-120°C for 4-6 hours. Store the filament in a sealed bag with desiccants to prevent reabsorption of moisture.
8. Annealing
Siraya Tech PET-CF is a robust engineering filament that can be used right off the
spool without annealing.
However, if you need to enhance its hardness, consider annealing it at 90-100°C for 4-6 hours. Be mindful of potential shrinkage during the annealing process.
Download Fibreheart PET-CF TDS in PDF version