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Makroblend® SR60

(PC+PBT)-blend, mineral filled, excellent chemical resistance, improved scratch resistance, injection molding grade.

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Technical Properties & Datasheets

Property Name Standard Test condition Unit Value
Barrel Temperatures - Front - °C 250 - 260
Barrel Temperatures - Middle - °C 240 - 250
Barrel Temperatures - Nozzle - °C 260 - 270
Barrel Temperatures - Rear - °C 230 - 240
Dry Air Drying Temperature - °C 105
Dry Air Drying Time - h 2 - 4
Hold Pressure (% of injection pressure) - % 50 - 75
Melt temperatures - °C 250 - 270
Moisture Content max. (%) - % <00.02
Mold Temperatures - °C 60 - 80
Peripheral Screw Speed - m/s 0.1 - 0.2
Plastic Back Pressure (specific) - bar 50 - 100
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 0.85 mm Class HB (Covestro Test)
Coefficient of linear thermal expansion, normal ISO 11359-1,-2 23 to 55 °C 10^-4^/K 1
Coefficient of linear thermal expansion, parallel ISO 11359-1,-2 23 to 55 °C 10^-4^/K 1
Temperature of deflection under load ISO 75-1,-2 0.45 MPa °C 106
Temperature of deflection under load ISO 75-1,-2 1.80 MPa °C 81
Thermal conductivity, normal ISO 8302 23 °C; 50 % r. h. W/(m*K) 0.22
Vicat softening temperature ISO 306 50 N; 120 °C/h °C 124
Vicat softening temperature ISO 306 50 N; 50 °C/h °C 122
Property Name Standard Test condition Unit Value
Charpy impact strength ISO 179/1eU -30 °C kJ/m² N
Charpy impact strength ISO 179/1eU 23 °C kJ/m² N
Flexural modulus ISO 178 2 mm/min MPa 2240
Flexural strength ISO 178 2 mm/min MPa 83
Izod impact strength ISO 180/1C -30 °C kJ/m² N
Izod impact strength ISO 180/1C 23 °C kJ/m² N
Izod notched impact strength ISO 180/A 23 °C kJ/m² 39
Izod notched impact strength ISO 180/A -30 °C kJ/m² 16
Puncture energy ISO 6603-2 -30 °C J 45
Puncture energy ISO 6603-2 23 °C J 41
Puncture impact properties - maximum force ISO 6603-2 -30 °C N 5040
Puncture impact properties - maximum force ISO 6603-2 23 °C N 3850
Stress at break ISO 527-1,-2 50 mm/min MPa 43
Tensile modulus ISO 527-1,-2 1 mm/min MPa 2300
Yield strain ISO 527-1,-2 50 mm/min % 4.4
Yield stress ISO 527-1,-2 50 mm/min MPa 56
Property Name Standard Test condition Unit Value
Melt volume-flow rate ISO 1133 260 °C/ 5 kg cm³/10 min 22
Molding shrinkage, normal ISO 294-4 60x60x2 mm/ 260 °C / MT 80 °C/ 500 bar % 0.99
Molding shrinkage, parallel ISO 294-4 60x60x2 mm/ 260 °C / MT 80 °C/ 500 bar % 0.99
Property Name Standard Test condition Unit Value
Comparative tracking index CTI IEC 60112 Solution A Rating 175
Electrical strength IEC 60243-1 1 mm kV/mm 34
Surface resistivity IEC 60093 Ohm 1E15
Volume resistivity IEC 60093 Ohm*m 1E14
Property Name Standard Test condition Unit Value
Injection molding - Injection velocity ISO 294 mm/s 200
Injection molding - Melt temperature ISO 294 °C 270
Injection molding - Mold temperature ISO 294 °C 70
Property Name Standard Test condition Unit Value
Density ISO 1183-1 kg/m³ 1235
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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Technical Data Sheet
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Safety Data Sheet
No direct download available, please visit www.productsafetyfirst.covestro.com
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