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Covestro Makrolon® 6870 Polycarbonate  (discontinued **)
Categories: Polymer; Thermoplastic; Polycarbonate (PC); Polycarbonate, Unreinforced, Flame Retardant
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.
Key Words: PC
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesMetricEnglishComments
Density 1.20 g/cc0.0434 lb/in³
Moisture Absorption at Equilibrium 0.15 %0.15 %50% RH
Water Absorption at Saturation 0.35 %0.35 %
 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 PropertiesMetricEnglishComments
Tensile Strength, Yield 63.0 MPa9140 psi
Elongation at Break >= 4.0 %>= 4.0 %Nominal
Elongation at Yield 6.0 %6.0 %
Tensile Modulus 2.40 GPa348 ksi
Charpy Impact Unnotched NBNB
Tensile Creep Modulus, 1 hour 3800 MPa551000 psi
Tensile Creep Modulus, 1000 hours 3600 MPa522000 psi
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity >= 1.00e+15 ohm-cm>= 1.00e+15 ohm-cm
Surface Resistance 1.00e+15 ohm1.00e+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/mm762 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 V225 V
 
Thermal PropertiesMetricEnglishComments
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 °C277 °F
Deflection Temperature at 1.8 MPa (264 psi) 126 °C259 °F
Vicat Softening Point 145 °C293 °F
Glass Transition Temp, Tg 148 °C298 °F
Flammability, UL94 V-0
@Thickness 1.60 mm		V-0
@Thickness 0.0630 in
Oxygen Index 35 %35 %
 
Optical PropertiesMetricEnglishComments
Transmission, Visible 81 %
@Thickness 1.00 mm		81 %
@Thickness 0.0394 in		ISO 489-A

**
Materials flagged as discontinued () are no longer part of the manufacturer’s standard product line according to our latest information. These materials may be available by special order, in distribution inventory, or reinstated as an active product. Data sheets from materials that are no longer available remain in MatWeb to assist users in finding replacement materials.

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PBA449 / 26950

Specialty Compounds RTP Company




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