AKROMID®
B28 GF 25 9 FR black (8250)PA6 GF25 FR(40)
AKROMID® B28 GF 25 9 FR black (8250) is a flame retardant PA6 with 25% glass fibres and a better UV-stability than the standard AKROMID® B28 GF 25 9 FR black (8253). The flame retardant system is free of red phosphorus and halogens, leading to optimised electrical properties for e-mobility applications. This grade is UL listed with a V0 classification at 1.6mm. Due to its very good flowability, it is characterised by easy processability as well as good surface properties. The material has excellent long-term thermal stability and outstanding mechanical properties.
Features
Regulatory
Properties
9.000MPa
135MPa
81kJ/m²
Mechanical Properties
Tensile modulus
ISO 527-2
Tensile stress at break
ISO 527-2
Tensile strain at break
ISO 527-2
Charpy impact strength
ISO 179-1/1eU
Thermal Properties
Temperature of deflection under load HDT/A
ISO 75
Melting temperature
ISO 11357-3
Temperature index for 50% loss of tensile strength
IEC 60216
Flammability
Burning rate
UL 94
GWFI
IEC 60695-2-12
HWI
UL 746A
HAI
UL 746A
Burning rate (<100 mm/min)
FMVSS 302
General properties
Density
ISO 1183
Humidity absorption
ISO 1110
Molding shrinkage
ISO 294-4
Electrical Properties
Volume resistivity IEC
DIN EN IEC 62631-3-2
Surface resistivity
DIN EN 62631-3-2
Comparative tracking index
IEC 60112
Comparative tracking index
ASTM D3638
Dielectric strength
IEC 60243
Inclined-Plane Tracking, IPT
ASTM D2303-13
High voltage arc tracking rate (HVTR)
UL 746A
High Volt, Low Current Arc Resistance
ASTM D495
Rheological Properties
Flowability
AKRO
Documents
Discover all the technical specifications at a single glance here.
Processing information
The values mentioned are recommendations. We only recommend desiccant / dry air dryers or vacuum dryers. Too long a drying time and the resulting residual moisture content below the lower limit can lead to filling problems and surface defects. The specified drying time refers to closed and undamaged bagged material. When processing from previously opened bags or from octabins with polyolefin inliners, a longer drying time may be necessary. It is recommended to check the residual moisture content after the drying process.
Drying time
2 - 4 h
Drying temperature (τ ≤ -30°C)
80 °C
Processing moisture
0,02 - 0,08 %
Feed section
60 - 80 °C
Temperature Zone 1 - Zone 4
220 - 280 °C
Nozzle temperature
240 - 280 °C
Melt temperature
240 - 280 °C
Mold temperature
60 - 100 °C
Holding pressure, spec.
300 - 800 bar
Back pressure, spec.
30 - 100 bar
Injection speed
medium
Screw speed
5 - 10 m/min
Applications
Explore more exciting application examples that illustrate how our products can be beneficial to you in various situations and industries.
Disclaimer
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.