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Preliminary datasheet

PPA – Polyphthalamide PPA GF 35 FR

AKROMID® T1 GF 35 FR natural (7288)

AKROMID® T1 GF 35 FR natural (7288) is a 35% glass fibre reinforced, halogene free flame retardant PPA with high stiffness and strength as well as high temperature- and chemical resistance and with flammability acc UL 94 V0.

The product will be discontinued in 2019.

Typical applications

Housings for Electro/Electronic 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.

6 Drying time 2 - 4 h

Drying temperature (τ ≤ -30°C) 120°C

Processing moisture 0,02 - 0,08%

1 Feed section 60 - 90°C

2 Temperature zone 1 - Zone 4 310 - 340°C

3 Nozzle temperature 320 - 340°C

4 Melt temperature 320 - 340°C

5 Mold temperature 100 - 160°C

P Nach Holding pressure, spec. 300 - 800 bar

P Stau Back pressure, spec. 30 - 100 bar

Injection speed medium

Screw speed 5 - 10 m/min

  • Mechanical Properties
    Tensile modulus (1 mm/min | ISO 527-2)
    d.a.m. 12300 MPa

    Stress at break (5 mm/min | ISO 527-2)
    d.a.m. 180 MPa

    Strain at break (5 mm/min | ISO 527-2)
    d.a.m. 2,5 %

    Charpy impact strength (23°C | ISO 179-1/1eU)
    d.a.m. 67 kJ/m²

  • Thermal Properties
    Melting temperature (DSC, 10K/min | DIN EN 11357-1) 310 °C

  • Flammability
    Burning rate (UL 94)
    0,8mm Wall thickness V-0 Class
    1,6mm Wall thickness V-0 Class

    GWFI (IEC 60695-2-12)
    0,4mm Wall thickness 960 °C
    0,8mm Wall thickness 960 °C
    1,6mm Wall thickness 960 °C
    3,2mm Wall thickness 960 °C

    GWIT (IEC 60695-2-13)
    0,4mm Wall thickness 775 °C
    0,8mm Wall thickness 775 °C
    1,6mm Wall thickness 775 °C
    3,2mm Wall thickness 775 °C

  • General properties
    Humidity absorption (70°C, 62% r.H. | ISO 1110) 1,0 - 1,2 %

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


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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