FABULOUS PA11 DARK
FABULOUS PA11 DARK
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DARK PA11 is a polyamide 11-based composite powder formulated by Fabulous for powder bed laser sintering systems (SLS, LS), on both industrial equipment and compact desktop machines. The bulk black colouring, achieved by incorporating carbon black, eliminates any post-processing dyeing step and guarantees consistent visual uniformity of produced parts.
The grade is positioned as an alternative to PA12 with superior elasticity: elongation at break reaches 40 % in the XY plane and Charpy impact resistance shows no break in dry or 24 h conditioned conditions.
Processing
The melting range is 196–204 °C by DSC. Process temperature varies by machine type: approximately 187 °C (±2) on industrial SLS and 194 °C (±2) on desktop SLS, with the black colouring shifting the thermal sensor readings.
Particle size distribution is centred on a D50 of 50 µm (D10: 30 µm, D90: 90 µm), with a tapped bulk density of 0.55 g/cm³ and a sintered part density close to 1 g/cm³. A refresh rate of 50 % is recommended, and wall airtightness is achieved from 1.6 mm thickness.
Applications and chemical resistance
DARK PA11 is intended for functional parts for automotive and aeronautical applications, large parts such as fuel or oil tanks, and detailed parts produced on desktop SLS. The PA11 matrix offers good resistance to alkaline media, hydrocarbons, oils, fuels and common organic solvents, but remains sensitive to acids. The material is rated as an electrical insulator to IEC 93.
Technical specifications
| Material | Polyamide 11 (additives, carbon black) |
|---|---|
| Physical state | Bulk black powder |
| Process | Powder bed laser sintering (SLS, LS) |
| Particle size distribution (laser diffraction) | 45–60 µm |
| D10 / D50 / D90 | 30 µm / 50 µm / 90 µm |
| Tapped bulk density (23 °C) | 0.55 ±0.05 g/cm³ |
| Sintered part density | 1 ±0.05 g/cm³ |
| Water absorption 24 h (ASTM D570) | 1.12 ±0.05 % |
| Melting temperature (DSC) | 196–204 °C |
| Industrial SLS process temperature | 187 °C (±2) |
| Desktop SLS process temperature | 194 °C (±2) |
| Young's modulus (ISO 527) | > 1500 MPa |
| Flexural modulus (ISO 178) | > 1300 MPa |
| Tensile strength XY (ISO 527) | 45 ±3 MPa |
| Tensile strength Z (ISO 527) | 40 ±3 MPa |
| Elongation at break XY (ISO 527) | 40 ±5 % |
| Elongation at break Z (ISO 527) | 20 ±3 % |
| Charpy impact (ISO 179, 20 °C) | No break (dry / conditioned 24 h); 50 kJ/m² conditioned 24 h |
| Shore D hardness (ISO 868) | 80 ±2 |
| Roughness Ra after initial blasting (ISO 4287) | 10 ±2 µm |
| Roughness Ra after finish blasting (ISO 4287) | 6 ±1 µm |
| Roughness Ra after vibratory finishing (ISO 4287) | 2 ±1 µm |
| Flammability behaviour UL-94 | HC (outside classification) |
| Volume resistivity (IEC 93) | 1.3 × 10¹³ Ohms/m |
| Surface resistivity horizontal (IEC 93) | 1.2 × 10¹⁵ Ohms |
| Surface resistivity vertical (IEC 93) | 1.5 × 10¹⁵ Ohms |
| Electrical classification | Insulator |
| Minimum wall airtightness thickness | 1.6 mm |
| Chemical resistance | Alkalis, hydrocarbons, oils, fuels, organic solvents; sensitive to acids |
| Behaviour in water | Insoluble (< 1 mg/m³ at 20 °C) |
| Recommended refresh rate | 50 % |
| Origin | France |
Compatibility
- Powder bed laser sintering systems (SLS, LS)
- Industrial SLS systems
- Compact and desktop SLS printers (high compatibility)
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