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Bayblend® FR421 MT

Rubber modified PC blend; mineral filled ; flame retardant; Vicat/B 120 temperature = 134 °C; extrusion grade for aircraft interiors; the classifications according to the respective aircraft standards are communicated with email inquiry under plastics@covestro.com

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Material

Plastics
Flame retardant

General Characterization

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Technical Properties & Datasheets

Property Name Standard Test condition Unit Value
Barrel Temperatures - Front - °C 240 - 270
Barrel Temperatures - Middle - °C 235 - 245
Barrel Temperatures - Nozzle - °C 265 - 275
Barrel Temperatures - Rear - °C 230 - 240
Dry Air Drying Temperature - °C 80 - 80
Dry Air Drying Time - h 4 - 4
Hold Pressure (% of injection pressure) - % 50 - 75
Melt Temperatures - °C 260 - 280
Moisture Content max. (%) - % <= 0,02
Mold Temperatures - °C 60 - 90
Peripheral Screw Speed - m/s 0.05 - 0.2
Plastic Back Pressure (specific) - bar 50 - 150
Shot-to-Cylinder Size - % 30 - 70
Standard Melt Temperature - °C 270
Vent Depth - mm 0.025 - 0.075
Property Name Standard Test condition Unit Value
Burning behavior UL 94 UL 94 0.75 mm Class V-0(Bayertest)
Burning behavior UL 94-5V UL 94 3.0 mm Class 5VA(Bayertest)
Coefficient of linear thermal expansion, parallel ISO 11359-1,-2 23 to 55 °C 10^-4^/K 0.5
Coefficient of linear thermal expansion, transverse ISO 11359-1,-2 23 to 55 °C 10^-4^/K 0.6
Temperature of deflection under load ISO 75-1,-2 0.45 MPa °C 129
Temperature of deflection under load ISO 75-1,-2 1.80 MPa °C 118
Vicat softening temperature ISO 306 50 N; 120 °C/h °C 134
Vicat softening temperature ISO 306 50 N; 50 °C/h °C 132 - 132
Property Name Standard Test condition Unit Value
Izod notched impact strength ISO 180-A 23 °C kJ/m² 30
Strain at break b.o. ISO 527-1,-2 50 mm/min % 22
Stress at break ISO 527-1,-2 50 mm/min MPa 47
Tensile modulus ISO 527-1,-2 1 mm/min MPa 3400 - 3400
Yield strain ISO 527-1,-2 50 mm/min % 4
Yield stress ISO 527-1,-2 50 mm/min MPa 58
Property Name Standard Test condition Unit Value
Melt viscosity b.o. ISO 11443-A 1000 s^-1^; 260 °C Pa*s 640
Melt volume-flow rate ISO 1133 260 °C; 5 kg cm³/10 min 2
Molding shrinkage, normal b.o. ISO 2577 150x105x3 mm; 260 °C / MT 80 °C % 0.6 - 0.8
Molding shrinkage, parallel b.o. ISO 2577 150x105x3 mm; 260 °C / MT 80 °C % 0.5 - 0.7
Property Name Standard Test condition Unit Value
Comparative tracking index CTI IEC 60112 Solution A Rating 200
Dissipation factor IEC 60250 1 MHz 10^-4^ 94
Dissipation factor IEC 60250 100 Hz 10^-4^ 46
Electrical strength IEC 60243-1 1 mm kV/mm 41
Relative permittivity IEC 60250 1 MHz 3.0
Relative permittivity IEC 60250 100 Hz 3.1
Surface resistivity IEC 60093 Ohm 1E16
Volume resistivity IEC 60093 Ohm*m 1E14
Property Name Standard Test condition Unit Value
Injection molding-Injection velocity ISO 294 mm/s 240
Injection molding-Melt temperature ISO 294 °C 260 - 260
Injection molding-Mold temperature ISO 294 °C 80 - 80
Property Name Standard Test condition Unit Value
Density ISO 1183-1 kg/m³ 1290 - 1290
Water absorption (equilibrium value) ISO 62 23 °C; 50 % r. h. % 0.2
Water absorption (saturation value) ISO 62 Water at 23 °C % 0.5

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