Siraya Tech Fibreheart PAHT User Manual

1. Product Overview

Siraya Tech Fibreheart PAHT is an advanced FDM 3D printing filament based on polyphthalamide (PPA) - a high-temperature nylon engineered for demanding applications. This unfilled, high-performance material offers exceptional mechanical properties, heat resistance, chemical resistance, and dimensional stability with significantly lower moisture sensitivity compared to standard PA6 nylon.

PAHT PPA Blakc engineering filamentPAHT PPA Blakc engineering filament model

2. Key Features

  • Superior Moisture Resistance: PAHT demonstrates significantly better moisture handling with a saturated moisture absorption rate of approximately one-fifth of PA6 and other Nylons.

  • Annealable Filament for Enhanced Strength: Annealing enhances durability, reduces stress, and improves dimensional stability for precise, high-performance engineering applications.
  • Superior Wear Resistance: Low friction coefficient with self-lubricating properties ideal for gears and wear-sensitive parts
  • Excellent Chemical Resistance: High resistance to various chemicals and solvents
  • Dimensional Stability: Minimal warping and shrinkage during printingwhen compared to Nylon
  • Enhanced Printability: Compatible with quick-release support materials for complex geometries

3. Material Properties

Property

Value

Tensile Strength (X-Y)

72 MPa

Young's Modulus (X-Y)

3600 MPa

Elongation at Break (X-Y)

10.1%

Bending Strength (X-Y)

115 MPa

Bending Modulus (X-Y)

3350 MPa

Impact Strength (X-Y)

10.1 KJ/m²

 

4. Storage and Handling (Moisture Control)

  • Storage:
    •  Store in a dry box with relative humidity below 15%;
    • Promptly reseal packaging after use.
  • Handling: If moisture contamination occurs (indicated by oozing, bubbles, or rough surface finish):
    • Dry in oven at 80-100°C for 4-6 hours
    • Only perform drying when moisture symptoms are present

5. Print Settings and Requirements

  • Hardware Requirements:
    • Nozzle: High quality metal nozzle, harden steel nozzle is not needed;
    • Nozzle Diameter: 0.4-1.0mm;
    • Bed Surface: PEI with Glue Stick or PVP glue coating.
  • For Bambu's printer, you can download the print setting here
  • Recommended Print Parameters：

Parameter

Setting

Nozzle Temperature

260-280°C

Bed Temperature

70-80°C

Cooling Fans

20-60%

Print Speed

30-120 mm/s

Layer Height

0.2mm (recommended)

Retraction Distance

1-3mm

Retraction Speed

1800-3600 mm/min

Raft Separation

0.12-0.16mm

Support Material

Compatible with quick-release support materials

6. Post-Processing

  • Annealing Guidelines (Optional)
    • Temperature: 80-100°C
    • Duration: 4-8 hours
    • Cooling: Allow natural cooling to room temperature
  • Benefits:
    • Improved heat deflection temperature
    • Enhanced mechanical properties
    • Better dimensional stability

7. Applications

  • Mechanical components requiring wear resistance
  • Gears and bearing surfaces
  • Chemical resistant parts
  • Precision engineering components
  • Industrial tooling and fixtures
  • Complex geometries requiring support structures
  • Parts requiring good dimensional stability