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PA6.6/6 – Polyamide 6.6/6 PA66 + PA 6 FR (30)

AKROMID® C3 1 FR black (5266)

3400 MPa

n.b. kJ/m²

AKROMID® C3 1 FR black (5266) is an at UL listed, unreinforced, heat stabilised and halogen-free flame retardant polyamide 6.6/6-Blend with good flow properties and suitable for moulded integral hinges. Improved Surface appearance

Typical applications

Switches and housings in the electric industry.



Processing information

The listed values are recommendations. Higher values should be used for higher glass loadings. We recommend only de-humidifying or vacuum dryers. Extensive drying can cause filling problems and surface defects.

6Drying time2 - 4 h

Drying temperature (τ ≤ -30°C)80°C

Processing moisture0,02 - 0,08%

1Feed section60 - 80°C

2Temperature zone 1 - Zone 4260 - 280°C

3Nozzle temperature260 - 280°C

4Melt temperature260 - 280°C

5Mold temperature60 - 100°C

P NachHolding pressure, spec.300 - 800 bar

P StauBack pressure, spec.30 - 100 bar

Injection speedmedium

Screw speed5 - 10 m/min

  • Mechanical Properties
    Tensile modulus (1 mm/min | ISO 527-2)
    d.a.m.3400 MPa
    conditioned1300 MPa

    Stress at yield (50 mm/min | ISO 527-2)
    d.a.m.75 MPa
    conditioned40 MPa

    Strain at break (50 mm/min | ISO 527-2)
    d.a.m.>10 %
    conditioned>50 %

    Charpy impact strength (23°C | ISO 179-1/1eU)
    d.a.m.n.b. kJ/m²

    Charpy impact strength (-30°C | ISO 179-1/1eU)
    d.a.m.90 kJ/m²

    Charpy notched impact strength (23°C | ISO 179-1/1eA)
    d.a.m.4 kJ/m²

    Charpy notched impact strength (-30°C | ISO 179-1/1eA)
    d.a.m.3 kJ/m²

  • Thermal Properties
    Temperature of deflection under load HDT/A (1,8 MPa | ISO 75)70 °C

    Temperature of deflection under load HDT/B (0,45 MPa | ISO 75)210 °C

    Melt temperature (DSC, 10K/min | DIN EN 11357-1)260 °C

  • Flammability
    Burning rate (UL 94)
    0,4mm Wall thicknessV0 Class
    0,8mm Wall thicknessV0 Class
    1,6mm Wall thicknessV0 Class
    3,2mm Wall thicknessV0 Class

    GWFI (IEC 60695-2-12)
    0,4mm Wall thickness960 °C
    0,8mm Wall thickness960 °C
    1,6mm Wall thickness960 °C
    3,2mm Wall thickness960 °C

    GWIT (IEC 60695-2-13)
    0,4mm Wall thickness775 °C
    0,8mm Wall thickness775 °C
    1,6mm Wall thickness775 °C
    3,2mm Wall thickness775 °C

    HWI (UL 746A)
    0,4mm Wall thickness4 PLC
    0,8mm Wall thickness4 PLC
    1,6mm Wall thickness0 PLC
    3,2mm Wall thickness0 PLC

    HAI (UL 746A)
    0,4mm Wall thickness0 PLC
    0,8mm Wall thickness0 PLC
    1,6mm Wall thickness0 PLC
    3,2mm Wall thickness0 PLC

    Oxygen index (ISO 4589-2)34,5 %

    Protection Train (EN 45545-2)R22/23/24/26 HL3

  • General properties
    Density (23°C | ISO 1183)1,16 g/cm³

    Humidity absorption (70°C, 62% r.H. | ISO 1110)2,1-2,3 %

    Molding shrinkage (flow | ISO 294-4)1,2 %

    Molding shrinkage (transverse | ISO 294-4)1,4 %

  • Electrical Properties
    Comparative tracking index (Test liquid A | IEC 60112)>600 V

    Dieletric strength (3 mm | IEC 60243)10 kV/mm

    Inclined-Plane Tracking, IPT (ASTM D2303-13)1 kV

    High voltage tracking rate, HVTR (UL 746A)0 PLC


All specifications and information given on this website are based on our current knowledge and experience. A legally binding promise of certain characteristics or suitability for a concrete individual case cannot be derived from this information. The information supplied here is not intended to release processors and users from the responsibility of carrying out their own tests and inspections in each concrete individual case. AKRO®, AKROMID®, AKROLEN®, AKROLOY®, AKROTEK®, ICX® and PRECITE® are registered trademarks of the Feddersen Group.

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