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Covestro Makrolon® 6870 Polycarbonate

Category Polymer , Thermoplastic , Polycarbonate (PC) , Polycarbonate, Unreinforced, Flame Retardant
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® 6870 Polycarbonate.pdf
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Material Notes:
Pseudoplastic behavior and high viscosity extrusion and injection molding grade, less resistant to UV than e.g. MAKROLON 6555.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 1.20 g/cc
0.0434 lb/in³
Water Absorption 0.35 %
0.35 %
Saturation in water
Moisture Absorption at Equilibrium 0.15 %
0.15 %
Equilibrium at 50% RH
Water Absorption at Saturation 0.35 %
0.35 %
Melt Flow 2.0 g/10 min

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

@Load 2.65 lb,
Temperature 572 °F
Mechanical Properties Metric English Comments
Tensile Strength, Yield 63.0 MPa
9140 psi
Elongation at Break >= 4.0 %
>= 4.0 %
Nominal
Elongation at Yield 6.0 %
6.0 %
Tensile Modulus 2.40 GPa
348 ksi
Charpy Impact Unnotched NB
NB
Tensile Creep Modulus, 1 hour 3800 MPa
551000 psi
Tensile Creep Modulus, 1000 hours 3600 MPa
522000 psi
Thermal Properties Metric English Comments
CTE, linear, Parallel to Flow 70.0 µm/m-°C

@Temperature 20.0 °C
38.9 µin/in-°F

@Temperature 68.0 °F
CTE, linear, Transverse to Flow 70.0 µm/m-°C

@Temperature 20.0 °C
38.9 µin/in-°F

@Temperature 68.0 °F
Deflection Temperature at 0.46 MPa (66 psi) 136 °C
277 °F
Deflection Temperature at 1.8 MPa (264 psi) 126 °C
259 °F
Vicat Softening Point 145 °C
293 °F
Glass Transition Temp, Tg 148 °C
298 °F
Flammability, UL94 V-0

@Thickness 1.60 mm
V-0

@Thickness 0.0630 in
Oxygen Index 35 %
35 %
Optical Properties Metric English Comments
Transmission, Visible 81 %

@Thickness 1.00 mm
81 %

@Thickness 0.0394 in
ISO 489-A
Electrical Properties Metric English Comments
Electrical Resistivity >= 1.00e+15 ohm-cm
>= 1.00e+15 ohm-cm
Surface Resistance 1.00e+15 ohm
1.00e+15 ohm
Dielectric Constant 2.9

@Frequency 1e+6 Hz
2.9

@Frequency 1e+6 Hz
3.0

@Frequency 100 Hz
3.0

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

@Frequency 100 Hz
0.0010

@Frequency 100 Hz
0.010

@Frequency 1e+6 Hz
0.010

@Frequency 1e+6 Hz
Comparative Tracking Index 225 V
225 V
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