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PA6 – Polyamide 6 PA-Blend

AKROMID® C28 GF 25 FRT grey (7530)

AKROMID® C28 GF 25 FRT grey (7530) is a 25 % glass fiber reinforced, flame retardant and easy flowing PA blend, colored in grey similar to RAL Design 000 65 00. The material is based on a flame retardant system that is free of red phosphorus and halogens. This grade is suitable for railroad applications and certified to EN 45545-2 R6 and EN 45545-2 R1. To achieve an excellent surface quality a mould temperature of at least 120°C is necessary.


Tensile Modulus
Tensile Strength
Impact Strength


flame retardant
surface modified
easy flow
public transportation


  • Mechanical Properties

    Tensile modulus (1 mm/min | ISO 527-2) d.a.m. 11000 MPa

    Stress at break (5 mm/min | ISO 527-2) d.a.m. 135 MPa

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

  • Flammability

    Burning rate (UL 94)
    0,4mm Wall thickness V-0 Class
    0,8mm Wall thickness V-0 Class
    1,6mm Wall thickness V-0 Class
    3,2mm 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

    Protection Train (EN 45545-2) R1/6/7 HL2

  • General properties

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 4 - 12 h

Drying temperature (τ ≤ -30°C) 80 - 90°C

Processing moisture 0,02 - 0,1%

1 Feed section 60 - 80°C

2 Temperature zone 1 - Zone 4 250 - 300°C

3 Nozzle temperature 270 - 300°C

4 Melt temperature 270 - 300°C

5 Mold temperature 120 - 160°C

P Nach Holding pressure, spec. 300 - 1500 bar

P Stau Back pressure, spec. 50 -150 bar

Injection speed high

Screw speed 8 - 10 m/min


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.

Measuring Curves

Application examples

Public Transportation - Solutions for a moving market


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