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DARK

Product catalog summary

Chemical Nature and Physical Properties:
The preparation is based on Polyamide 11, with possible additives like carbon black, resulting in a dark-colored solid powder. The average particle size ranges from 45 to 60 µm, with specific grain sizes of 30 µm, 50 µm, and 90 µm. The powder has a packed density of 0.55 ± 0.05 g/cm³ and a part density of 1 ± 0.05 g/cm³. Moisture absorption at 23°C over 24 hours is 1.12 ± 0.05%.

Mechanical Properties:
The material exhibits a Young Modulus of over 1500 MPa and a flexural modulus of over 1300 MPa. Tensile strength averages are 45 ± 3 MPa in XY and 40 ± 3 MPa in Z directions. Elongation at break is 40 ± 5% in XY and 20 ± 3% in Z. The Charpy impact strength is noted as 'No Break' under dry and conditioned states.

Thermal Properties:
The melting point ranges from 196 to 204°C, with a processing temperature of 187°C for industrial and 194°C for desktop applications. The material is classified under UL-94 for flammability.

Chemical Properties:
Polyamide 11 matrix offers good resistance to alkaline, hydrocarbons, oils, and solvents but is attacked by acids. It is insoluble in water and most organic solvents but soluble in mineral acids and phenols.

Electrical Properties:
Volume resistivity is 1.3 E+13 Ohms/m, with horizontal and vertical surface voluminal resistivity at 1.2 E+15 Ohms and 1.5 E+15 Ohms, respectively.

Surface and Explosive Properties:
The Shore D hardness is 80 ± 2. Surface roughness after processing is 10 ± 2 µm, reducing to 2 ± 1 µm after finishing. The material can form explosive dust mixtures in air, with a Kst value of 200 - 250 m.bar/s.

Applications and Key Points:
DARK PA11 is suitable for automotive and aerospace industries, particularly for large parts like fuel tanks and detailed parts with better performance than PA12. It is bio-sourced, offering better elasticity and high compatibility with SLS systems.

Catalog excerpts

DARK DARK is a fine composite powder based on polyamide 11 (thermoplastic) especially formulated to function on powder bed systems by laser sintering (SLS, LS, compact & desktop SLS). It enables to obtain productions of models and functional parts in "plastic engineering" with long cycle of life and excellent chemical resistance. Applications examples : Typical features : Automotive & aerospace industries Large parts as fuel or oil tanks Detailed parts with better performances than PA12 on Desktop SLS PA11 Black in the mass Better elasticity than PA12 Sustainable material (bio-sourced) Refresh rate : Industrial SLS High-compatibility with Compact & Desktop SLS Ductility & Elongation No dying necessary (black deep colour in mass) MADE IN General Properties : Chemical Nature of the Preparation : Physical State (20°C) and Color : POLYAMIDE 11, Presence of additives Possible presence of : Carbon black Colored grade = DARK Solid (powder) Colored Grade : Mass Black Average Particle Size : Grain Size : Grain Size : Grain Size : Powder packed Density 23 ° C : Part Density : 23°C Moisture absorption 24 hrs : Method FABULOUS : Method FABULOUS : ASTM D570 Young Modulus* Flexural Modulus* Tensile strength (Average XY)* Tensile strength (Average Z)* Elongation at break (Average XY )* Elongation at break (Average Z)* Charpy – Impact strength* Mechanical Properties : statistics after several cycles The mechanical properties can vary according to the positioning of the tensile bars, operating conditions and exposure parameters of the systems used. These data rest on the current state of our knowledge. They do not give the exact characteristics of material and does not represent a guarantee. N°Siret France 799529383 00017 RCS Lyon +33 4.37.26.05.06 European VAT : FR 00 799529383 Tech Center : 2 Avenue Roger Salengro, Carré de Soie, 69120 VAULX-EN-VELIN - FRANCE

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DARK Thermal Properties : T°f Melting Point : T° Process : According to machine the Black color offset the reading : Glazing Method Flammability – Fire Classification UL-94 following ASTM D618(ISO 921) with a barrel vertical & Horizontal test 125 x 13 x 13 mm Electrical Properties : According to the value reach in CEI 93 the material is considered as : ISOLANT Volume resistivity Horizontal surface Voluminal resistivity Vertical surface Voluminal resistivity Natural Coloration : Mass Black Surface Ra/ Upper Facing processed & blasting : Surface Ra/ Upper Facing after Finishing : Surface Finish...

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DARK

DARK

Catalog excerpts

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