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Covestro Makrolon® 8345 Polycarbonate

Category Polymer , Thermoplastic , Polycarbonate (PC) , Polycarbonate, 30% Glass Filled
Manufacturer Covestro
Trade Name Makrolon®
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Covestro Makrolon® 8345 Polycarbonate.pdf
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Material Notes:
High viscosity injection molding and extrusion grade with 35% standard glass fibers and easy mold release, stiff flow, especially high strength and stiffness.Information provided by Bayer.As of 1 September 2015, Bayer MaterialScience was separated from Bayer AG and officially adopted its new name – Covestro.
Physical Properties Metric English Comments
Density 1.50 g/cc
0.0542 lb/in³
Water Absorption 0.27 %
0.27 %
Saturation in water
Moisture Absorption at Equilibrium 0.11 %
0.11 %
Equilibrium at 50% RH
Water Absorption at Saturation 0.27 %
0.27 %
Melt Flow 3.0 g/10 min

@Load 1.20 kg,
Temperature 300 °C
3.0 g/10 min

@Load 2.65 lb,
Temperature 572 °F
Mechanical Properties Metric English Comments
Tensile Strength, Ultimate 135 MPa
19600 psi
Elongation at Break 3.5 %
3.5 %
Tensile Modulus 10.5 GPa
1520 ksi
Charpy Impact Unnotched 4.00 J/cm²
19.0 ft-lb/in²
Tensile Creep Modulus, 1 hour 5900 MPa
856000 psi
Tensile Creep Modulus, 1000 hours 5400 MPa
783000 psi
Thermal Properties Metric English Comments
CTE, linear, Parallel to Flow 25.0 µm/m-°C

@Temperature 20.0 °C
13.9 µin/in-°F

@Temperature 68.0 °F
Deflection Temperature at 0.46 MPa (66 psi) 145 °C
293 °F
Deflection Temperature at 1.8 MPa (264 psi) 138 °C
280 °F
Vicat Softening Point 149 °C
300 °F
Glass Transition Temp, Tg 148 °C
298 °F
Flammability, UL94 V-1

@Thickness 1.60 mm
V-1

@Thickness 0.0630 in
V-0

@Thickness 3.00 mm
V-0

@Thickness 0.118 in
Oxygen Index 32 %
32 %
Electrical Properties Metric English Comments
Electrical Resistivity >= 1.00e+15 ohm-cm
>= 1.00e+15 ohm-cm
Surface Resistance 1.00e+14 ohm
1.00e+14 ohm
Dielectric Constant 3.6

@Frequency 1e+6 Hz
3.6

@Frequency 1e+6 Hz
3.8

@Frequency 100 Hz
3.8

@Frequency 100 Hz
Dielectric Strength 30.0 kV/mm
762 kV/in
Dissipation Factor 0.0010

@Frequency 100 Hz
0.0010

@Frequency 100 Hz
0.0090

@Frequency 1e+6 Hz
0.0090

@Frequency 1e+6 Hz
Comparative Tracking Index 175 V
175 V
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