
QIDI UltraPA-CF25 Filament for 3D Printing | Qidi Tech Qidi 3D Printer
QIDI TECH UltraPA-CF25 3D Printer Filament
For High-performance Engineering Applications
QIDI UltraPA-CF25 is one type of 3D printing filament with 25% carbon fiber content and a skin-core structure.Using high-temperature nylon as the base material, UltraPA-GF25 has the characteristics of low moisture absorption, high strength, high wear resistance, excellent chemical resistance and high heat resistance. The 25% chopped carbon fiber content can improve the mechanical properties and heat resistance of printed parts, making it an ideal choice for high-performance engineering applications.
Product Features
Exceptional Mechanical Properties
High Dimensional Stability
Exceptional Thermal Resistance
Excellent layer adhesion
Cautions for Use
0.2 mm Nozzle Not Compatible
Must Be Dried before Use to Achieve Optimal Print Quality


Exceptional Mechanical Properties
Due to UltraPA-CF25's ultra-high bending modulus and 25% carbon fiber reinforcement, UltraPA-CF25's 3D printed products have extremely high rigidity and are suitable for applications with high strength or lightweight requirements.
Filament | PA12-CF | PAHT-CF | UltraPA-CF25 |
Bending strength (X-Y,Annealed) | 124 MPa | 157 MPa | 168 MPa |
Bending modulus (X-Y,Annealed) | 4305 MPa | 6983 MPa | 7466 MPa |
High Dimensional Stability
With UltraPA-CF25, you can achieve industrial-grade precision and excellent dimensional stability in every print. 25% carbon fiber reinforcement reduces problems such as warping and deformation, ensuring your printed parts maintain their precise dimensions. Whether you are working on high-precision prototypes or end-use components, UltraPA-CF25 guarantees a perfect match to your design specifications, allowing you to complete the most demanding projects with confidence.


Excellent layer adhesion
QIDI UltraPA-CF25 uses reinforced fiber coating technology to allow the extruded filament to maintain a stable skin-core structure. The skin-core structure allows the adhesion between the inner and outer layers of the filament to reach the optimal level, completely avoiding the loss of interlayer adhesion. This further improves the Z-axis interlayer strength of the final printed parts compared to pure resin materials. QIDI UltraPA-CF25 is very suitable for printing thin-walled parts and parts with high mechanical performance requirements.
Exceptional Thermal Resistance
QIDI UltraPA-CF25 has excellent thermal resistance and is very suitable for demanding applications that require stability in high temperature environments. Whether it is a functional prototype, end-use part or industrial assembly, it can maintain excellent mechanical properties under thermal stress to ensure reliability.

Filament | PA12-CF | PAHT-CF | PPS-CF | UltraPA-CF25 |
Heat Deflection Temperature(0.45MPa) | 138.2°C | 190.7°C | 242.7°C | 196.9°C |
Accessory Compatibility
Recommended | Not Recommended | |
Build Plate | QIDI PEI Plate, HF Plat, PC Plate and Smooth Plate | / |
Hotend | Hardened Steel Nozzle ( 0.4 / 0.6 / 0.8 mm) Bimetal Nozzle ( 0.4 / 0.6 / 0.8 mm) |
Brass/Copper plated Nozzle (0.2/0.4/0.6/0.8 mm) |
Glue | Glue Stick/ 3D LAC adhesive spray | / |
Recommended Printing Settings
Drying Settings (Blast Drying Oven) 80-100 °C,4-6 h
Printing and Keeping Container's Humidity < 15% RH (Sealed, with Desiccant)
Nozzle Temperature 300-340 °C
Bed Temperature (with Glue) 70-80 °C
Printing Speed 30-200 mm/s
Physical Properties
Density 1.23 g/cm³
Water absorption 1.09 %
Heat Deflection Temperature 196.9°C
Melting Temperature 237°C
Melt index 4.2 g/10min
Mechanical Properties
Tensile strength(X-Y) 118.19 ± 3.82 MPa
Elongation at break (X-Y) 1.62 ± 0.12 %
Bending Modulus 9214.34 ± 249.80 MPa
Impact Strength 7.29 ± 0.76 KJ/㎡
Downloads
Printing Tips
Ensure sealing and drying. Nylon materials easily absorb moisture from the environment, which can cause drawing and bubbles to appear during printing, reducing the printing quality.
For more details please refer to: Filament Guide on WIKI.
- What is UltraPA-CF25 Filament? - UltraPA-CF25 Filament is a strong type of 3D printing material made from high-quality nylon with 25% carbon fiber added. This filament is special because it is very strong and can withstand high temperatures, making it perfect for creating durable and precise 3D printed objects.
- What are the benefits of using UltraPA-CF25 Filament? - Using UltraPA-CF25 Filament offers many advantages including high strength, resistance to heat, and less chance of bending or warping while printing. It helps in making strong, reliable parts that are great for both prototypes and final products.
- How do I prepare the filament for printing? - Before using UltraPA-CF25 Filament, it's important to dry it properly. This means heating it gently in a special oven at 80-100 °C for about 4 to 6 hours. This process removes any moisture, ensuring your prints come out just right!
- What printing temperature do I need for this filament? - To print with UltraPA-CF25 Filament, you should set your printer's nozzle temperature between 300-340 °C. This ensures the filament melts properly and sticks together well as you print.
- What kind of nozzle should I use? - When using UltraPA-CF25 Filament, it's best to use a hardened steel nozzle. Nozzles that are 0.4 mm, 0.6 mm, or 0.8 mm in size work well. Avoid using brass or copper nozzles as they are not recommended for this filament.
- Is UltraPA-CF25 safe to use? - Yes, UltraPA-CF25 Filament is safe for 3D printing when used according to instructions. Proper handling and ensuring good ventilation while printing help keep the process safe.
- Where can I buy UltraPA-CF25 Filament? - You can buy UltraPA-CF25 Filament directly from our site. It's available in 1000g spools and can be ordered online for delivery.
- What should I do if my prints are not coming out well? - If your prints are not looking good, check if the filament has been properly dried, adjust the printing temperature, and make sure you’re using the right nozzle. If problems persist, refer to the 3D printing guides available on the Qidi website for more help.
- Can this filament be used for all types of 3D printers? - No, UltraPA-CF25 Filament is designed for use with specific types of 3D printers that can handle high temperature settings. Make sure your printer model is compatible with this filament before purchasing.
- How does the carbon fiber in the filament improve performance? - The carbon fiber in UltraPA-CF25 Filament enhances its stiffness and strength. This means that parts printed with this filament are less likely to break or deform, making it ideal for engineering and high-performance applications.
