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PPA – Polyphthalamide PPA GF50

AKROMID® T5 GF 50 8 natural (6464)

19000 MPa

270 MPa

85 kJ/m²

AKROMID® T5 GF 50 8 black (6205) is a 50% glass fibre reinforced polyphthalamide with very high rigidity and strength, as well as high temperature and chemical resistance.

This aromatic PPA keeps mechanical performance even at elevated temperatures or moisture pic-up.

The material fulfills the requirements according to KTW, DVGW W270, ACS, WRAS as well as NSF. It is suitable for applications that are in contact with cold and hot drinking water as well as food.

Typical applications

Mainly components in domestic and industrial applications that are in contact with food or drinking water, requiring strength and durability even at high temperatures or moist conditions.



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 time0 - 4 h

Drying temperature (τ ≤ -30°C)120°C

Processing moisture0,02 - 0,1%

1Feed section60 - 90°C

2Temperature zone 1 - Zone 4320 - 350°C

3Nozzle temperature330 - 350°C

4Melt temperature330 - 350°C

5Mold temperature120 - 160°C

P NachHolding pressure, spec.300 - 800 bar

P StauBack pressure, spec.50 - 150 bar

Injection speedmedium to high

Screw speed8 - 15 m/min

  • Mechanical Properties
    Tensile modulus (1 mm/min | ISO 527-2)
    d.a.m.19000 MPa
    conditioned19000 MPa

    Stress at break (5 mm/min | ISO 527-2)
    d.a.m.270 MPa
    conditioned270 MPa

    Strain at break (5 mm/min | ISO 527-2)
    d.a.m.2,1 %
    conditioned2,1 %

    Flexural modulus (2 mm/min | ISO 178)
    d.a.m.18500 MPa
    conditioned18500 MPa

    Flexural strength (2 mm/min | ISO 178)
    d.a.m.410 MPa
    conditioned350 MPa

    Standard bending strength RP 3,5 (2 mm/min | ISO 178)
    d.a.m.2,5 MPa

    Charpy impact strength (23°C | ISO 179-1/1eU)
    d.a.m.85 kJ/m²
    conditioned85 kJ/m²

    Charpy impact strength (-30°C | ISO 179-1/1eU)
    d.a.m.75 kJ/m²
    conditioned75 kJ/m²

    Charpy notched impact strength (23°C | ISO 179-1/1eA)
    d.a.m.13 kJ/m²
    conditioned13 kJ/m²

  • Thermal Properties
    Temperature of deflection under load HDT/A (1,8 MPa | ISO 75)280 °C

    Melt temperature (DSC, 10K/min | DIN EN 11357-1)325 °C

  • Flammability
    Burning rate (UL 94)
    1,6mm Wall thicknessHB Class

  • General properties
    Density (23°C | ISO 1183)1,65 g/cm³

    Humidity absorption (70°C, 62% r.H. | ISO 1110)0,8 %

    Molding shrinkage (flow | ISO 294-4)0,1-0,3 %

    Molding shrinkage (transverse | ISO 294-4)0,4-0,6 %


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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