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Makroblend® M4000 FR

(PC+PBT) Blend, injection molding grade, flame retardant, excellent chemical resistance. Manufactured according to GMP, tested only according to ISO 10993-5 and ISO 10993-10 for contact with uncompromised skin only; for questions regarding biocompatibility we ask for an email inquiry under plastics@covestro.com. Limited colorability: recommended for whites and light colors only.

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Technical Properties & Datasheets

Property Name Standard Test condition Unit Value
Barrel Temperatures - Front - °C 255 - 265
Barrel Temperatures - Middle - °C 250 - 260
Barrel Temperatures - Nozzle - °C 255 - 270
Barrel Temperatures - Rear - °C 245 - 255
Dry Air Drying Temperature - °C 110
Dry Air Drying Time - h 2 - 4
Hold Pressure (% of injection pressure) - % 50 - 75
Melt Temperatures - °C 250 - 270
Moisture Content max. (%) - % <= 0,01
Mold Temperatures - °C 60 - 100
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 260
Vent Depth - mm 0.025 - 0.075
Property Name Standard Test condition Unit Value
Burning behavior UL 94 UL 94 2.0 mm Class V-0
Burning behavior UL 94-5V UL 94 3.0 mm Class 5VA
Coefficient of linear thermal expansion, parallel ISO 11359-1,-2 23 to 55 °C 10^-4^/K 0.8
Coefficient of linear thermal expansion, transverse ISO 11359-1,-2 23 to 55 °C 10^-4^/K 0.8
Temperature of deflection under load ISO 75-1,-2 0.45 MPa °C 115
Temperature of deflection under load ISO 75-1,-2 1.80 MPa °C 85
Thermal conductivity, cross-flow ISO 8302 23 °C; 50 % r. h. W/(m*K) 0.2
Vicat softening temperature ISO 306 50 N; 120 °C/h °C 130
Property Name Standard Test condition Unit Value
Ball indentation hardness ISO 2039-1 N/mm² 117
Flexural modulus ISO 178 2 mm/min MPa 2300
Flexural strength ISO 178 2 mm/min MPa 86
Flexural stress at 3.5 % strain ISO 178 2 mm/min MPa 75
Izod notched impact strength ISO 180-A 23 °C kJ/m² 40
Izod notched impact strength ISO 180-A -30 °C kJ/m² 12
Nominal strain at break ISO 527-1,-2 50 mm/min % 109
Tensile modulus ISO 527-1,-2 1 mm/min MPa 2300
Yield strain ISO 527-1,-2 50 mm/min % 4.3
Yield stress ISO 527-1,-2 50 mm/min MPa 56
Property Name Standard Test condition Unit Value
Melt viscosity b.o. ISO 11443-A 1000 s^-1^/ 260 °C Pa*s 305
Melt volume-flow rate ISO 1133 260 °C/ 5 kg cm³/10 min 18
Molding shrinkage, parallel/normal b.o. ISO 2577 Value range based on general practical experience (600bar) % 0.7 - 0.9
Property Name Standard Test condition Unit Value
Comparative tracking index CTI IEC 60112 Solution A Rating 225
Dissipation factor IEC 60250 1 MHz 10^-4^ 200
Dissipation factor IEC 60250 100 Hz 10^-4^ 20
Electrical strength IEC 60243-1 1 mm kV/mm 46
Relative permittivity IEC 60250 1 MHz 3.2
Relative permittivity IEC 60250 100 Hz 3.4
Surface resistivity IEC 60093 Ohm 1E15
Volume resistivity IEC 60093 Ohm*m 1E14
Property Name Standard Test condition Unit Value
Density ISO 1183-1 kg/m³ 1340
Water absorption (equilibrium value) ISO 62 23 °C; 50 % r. h. % 0.12
Water absorption (saturation value) ISO 62 Water at 23 °C % 0.4

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Technical Data Sheet
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Safety Data Sheet
No direct download available, please visit www.productsafetyfirst.covestro.com
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