1.Introduction to Fibreheart PAHT-CF Filament

Siraya Tech Fibreheat PAHT-CF Black is a high-performance FDM 3D printing filament specially developed for demanding applications. It is based on high-temperature nylon (PAHT) reinforced with 15% chopped carbon fiber, providing excellent mechanical properties, heat resistance, chemical resistance, and dimensional stability.

2.Key Features

  • Smart Fiber Reinforced Technology: Carbon fibers form a mesh skeleton structure that improves strength and releases internal stresses for warp-free printing
  • Low moisture absorption: PAHT Moisture uptake is 10x lower than standard PA6 nylon for consistent performance
  • Excellent wear resistance: Low friction coefficient and self-lubricating properties are ideal for gears and wear-sensitive parts
  • Compatible with quick-release support material for easy printing of complex geometries

3. Material Characteristics

Tensile Stress at Break (MPa) 99
Young’s Modulus (MPa) 8150
Elongation at Break(%) 1.5
Charpy impact strength (KJ/m^2) 7
Bending Strength (MPa) 145
Bending Modulus (MPa) 7500
Vicat softening temperature ℃ 210
Glass Transition Temperature 190
Melting Point (℃) 237
Filament Density g/cm³ 1.2 g/cm³ (ISO 1183)

5. Tips for Best Results

  • Store filament in a dry box below 15% relative humidity and reseal packaging promptly. Moisture absorption can cause oozing, bubbles, and rough surface finish.
  • If material becomes damp, dry in an oven at 80-100°C for 4-6 hours to restore print quality.
  • Use a hardened steel nozzle and heating block at least 12mm thick for optimal performance.
  • Annealing parts at 80-100°C for 4-8 hours can further enhance strength. Allow parts to cool naturally before removing.

6. Printing Guidelines

  • Nozzle Temperature: 300-320°C
  • Recommended Nozzle Diameter: 0.4-1.0mm (hardened steel nozzle preferred)
  • Bed Temperature: 70-90°C
  • Bed Surface: PEI or PVP glue coating
  • Cooling Fans: OFF
  • Print Speed: 30-120 mm/s
  • Retraction: 1-3mm at 1800-3600 mm/min


By following these guidelines and leveraging the advanced material properties of Siraya Tech Fibreheat PAHT-CF Black, you can achieve high-quality prints with exceptional strength, heat resistance, and wear performance for the most demanding industrial and mechanical applications.