Bambu Lab PAHT-CF Black
Bambu Lab PAHT-CF Black
Bambu PAHT-CF is a composite material made of PA12 and carbon fiber. It combines the advantages of PA12's low water absorption with the excellent mechanical strength and thermal properties of high-performance carbon fiber, performing exceptionally even when the material is damp. Its higher Z-axis layer adhesion and flexibility make it ideal for manufacturing engineering parts such as functional prototypes, machining jigs, injection molds, fixtures, and small-batch production parts.
👉Click here to read [3D Printing Knowledge] Ultimate Comparison Guide to Carbon Fiber Printing Materials: PLA-CF, PAHT-CF, PET-CF, PETG-CF
Low Water Absorption
50% lower water absorption compared to general PA-CF.
Bambu PAHT-CF maintains excellent mechanical properties and dimensional stability even in high-humidity environments.
Deformation from dry to wet:
Mechanical Performance Comparison
| General PA-CF | PAHT-CF | |
| Saturated Water Absorption /% (25°C, 55% RH) | 1.70 | 0.88 |
| Flexural Strength - XY/MPa (Dry) | 128 | 125 |
| Flexural Strength - XY/MPa (Wet) | 76 | 115 |
| Flexural Strength - Z/MPa (Dry) | 48 | 61 |
| Flexural Strength - Z/MPa (Wet) | 34 | 49 |
| Flexural Modulus - XY/MPa (Dry) | 4420 | 4230 |
| Flexural Modulus - XY/MPa (Wet) | 2210 | 3640 |
| Flexural Modulus - Z/MPa (Dry) | 1470 | 1820 |
| Flexural Modulus - Z/MPa (Wet) | 770 | 1480 |
| Mechanical Property Degradation Rate after Water Absorption /% | 40%-45% | 12%-18% |
* Both PA-CF and PAHT-CF need to be dried at 80°C for 12 hours before printing.
Excellent Z-axis Adhesion
Compared to general PA-CF, Bambu PAHT-CF exhibits higher interlayer adhesion in the Z-layer,
allowing printed parts to withstand high impacts and stresses without breaking or deforming easily.
PA-CF and PAHT-CF Z-Layer Performance Comparison
| General PA-CF | PAHT-CF | Improvement Percentage | |
| Flexural Strength - Z/MPa | 48 | 61 | 27% |
| Flexural Modulus - Z/MPa | 1470 | 1820 | 24% |
| Impact Strength - Z/ (K0/m²) | 5.7 | 13.3 | 133% |
* Both PA-CF and PAHT-CF need to be dried at 80°C for 12 hours before printing.
High Tensile StrengthBambu PAHT-CF is designed to meet various industrial demands
and engineering applications requiring high strength and durability.
Designed for High-Temperature Resistance
Bambu PAHT-CF has a heat deflection temperature of up to 194°C (0.45MPa)*,
making it suitable for printing parts that may be exposed to high-temperature environments, preventing deformation or loss of strength.
* Long-term temperature resistance varies depending on the model structure and usage scenario.
Reusable Spool
Bambu PAHT-CF is manufactured with high-temperature resistant spools that are not easily deformed during the drying process. Continuing the philosophy of reducing plastic waste, the spools can be reused with other Bambu filaments.
Accessory Compatibility
| Recommended | Not Recommended | |
| Print Bed | High-temperature Plate, Engineering Plate | Low-temperature Print Plate |
| Nozzle | Hardened steel nozzle (0.6 mm, 0.4 mm, 0.8 mm)* | Stainless steel nozzle (all sizes), Hardened steel nozzle (0.2 mm) |
| Adhesive | Glue stick | Liquid glue |
* As nozzle size increases, the risk of clogging decreases, but print quality may decline. A 0.6 mm hardened steel nozzle is recommended for a balance between anti-clogging and optimal print quality.
RFID for Smart PrintingAll printing parameters are embedded in the RFID, which can be read by AMS (Automatic Material System).
Load and print, no complex settings required.
Parameter Comparison
For more details on filament comparisons, please refer to Bambu Filament Guide >>
| PET-CF | PAHT-CF | |
| Composition | PET, Carbon Fiber | PA 12 Long Chain PA, Carbon Fiber |
| Nozzle Compatibility | Hardened steel 0.6 (recommended), 0.4, 0.8 mm | |
| Build Plate Compatibility | Engineering plate, High-temperature plate, Textured PEI plate | |
| Adhesive | 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/m² | 57.5 kJ/m² |
| Strength (Flexural Strength - XY) | 131 MPa | 125 MPa |
| Stiffness (Flexural Modulus - XY) | 5320 MPa | 4230 MPa |
| Interlayer Adhesion (Impact Strength - Z) | 4.5 kJ/m² | 13.3 kJ/m² |
| Heat Resistance (HDT, 0.45 MPa) | 205°C | 194°C |
| Saturated Water Absorption /% (25°C, 55% RH) | 0.37 | 0.88 |
Printing Tips
- Drying conditions: 80°C, 8 hours. PAHT-CF is highly sensitive to humidity. For optimal printing results, further drying is recommended before use and after storage. For more details, please refer to the Filament Drying Instructions on the WIKI.
- Bambu PAHT-CF requires high insulation conditions during printing and is not suitable for open-frame printers.
Package Contents
Spool & Filament *1 & Desiccant *1
Filament Label *1
Packaging *1
Product Specifications
| Diameter | 1.75 mm |
|---|---|
| Net Weight | 500 g |
| Spool Material | PC+ABS (Heat resistance 90°C) |
| Spool Dimensions | Diameter: 200 mm; Height: 67 mm |
| Drying before printing | 80°C, 8-12 hours X1 series printer hot bed: 90 - 100°C, 12 hours |
| Printing and storage humidity | < 20% RH (sealed with desiccant) |
| Nozzle Temperature | 260 - 290°C |
| Build Plate Type | Engineering plate, high-temp plate or textured PEI plate |
| Build Plate Temperature | 80 - 100°C |
| Cooling Fan | 0-60 % |
| Printing Speed | < 100 mm/s |
| Retraction Length | 0.8 - 1.4 mm |
| Retraction Speed | 20 - 40 mm/s |
| Chamber Temperature | 45 - 60°C |
| Max Overhang Angle | Approx. 70° |
| Max Bridging Length | Approx. 40 mm |
| Support Material | Support for PA/PET |
Physical Properties
| Density | 1.09 g/cm³ |
|---|---|
| Vicat Softening Temperature | 223°C |
| Heat Deflection Temperature | 186°C |
| Melting Temperature | 223°C |
| Melt Flow Index | 6.8 ± 0.6 g/10 min |
Mechanical Properties
| Tensile Strength | 102 ± 7 MPa |
|---|---|
| Elongation at Break | 5.8 ± 1.6% |
| Flexural Modulus | 5460 ± 280 MPa |
| Flexural Strength | 151 ± 8 MPa |
| Impact Strength | 40.3 ± 2.5 kJ/m² |