Covestro Apec® DP 1-9379/5 Polycarbonate

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Covestro Apec® DP 1-9379/5 Polycarbonate (discontinued **)
Categories:	Polymer; Thermoplastic; Polycarbonate (PC); Polycarbonate, Molded
Material Notes:	Key Features: Release agent Unfilled Suitable processing methods: Injection molding Thermoforming Information provided by Bayer Polymers. As of 1 September 2015, Bayer MaterialScience was separated from Bayer AG and has officially adopted its new name – Covestro. This product was discontinued prior to the separation.
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Physical Properties	Original Value	Comments

Density	1.14 g/cc
Melt Density	0.970 g/cc @Temperature 330 °C
Water Absorption	0.40 %
Moisture Absorption at Equilibrium	0.20 %	23°C/50% R.H.
Melt Flow	8.0 g/10 min @Load 2.16 kg, Temperature 330 °C

Mechanical Properties	Original Value	Comments
Tensile Strength, Yield	65.0 MPa
Elongation at Break	50 %	Nominal
Elongation at Yield	7.0 %
Tensile Modulus	2.30 GPa
Charpy Impact Unnotched	NB
	NB @Temperature -30.0 °C
Charpy Impact, Notched	0.600 J/cm²
	0.600 J/cm² @Temperature -30.0 °C

Electrical Properties	Original Value	Comments
Volume Resistivity	>= 1.00e+13 ohm-cm
Surface Resistance	>= 1.00e+15 ohm
Dielectric Constant	2.9 @Frequency 100 Hz
	2.9 @Frequency 1e+6 Hz
Dielectric Strength	35.0 kV/mm
Dissipation Factor	0.0020 @Frequency 100 Hz
	0.0070 @Frequency 1e+6 Hz
Comparative Tracking Index	600 V

Thermal Properties	Original Value	Comments
CTE, linear, Parallel to Flow	70.0 µm/m-°C @Temperature 20.0 °C
CTE, linear, Transverse to Flow	70.0 µm/m-°C @Temperature 20.0 °C
Specific Heat Capacity	1.70 J/g-°C	Melt
Thermal Conductivity	0.165 W/m-K	Melt
Deflection Temperature at 0.46 MPa (66 psi)	192 °C
Deflection Temperature at 1.8 MPa (264 psi)	173 °C
Vicat Softening Point	203 °C	50°C/h 50N
Flammability, UL94	HB @Thickness 1.50 mm
	HB @Thickness 3.00 mm
Oxygen Index	24 %

Optical Properties	Original Value	Comments
Transmission, Visible	90 %	Manufacturer states transparent but does not quantify

Processing Properties	Original Value	Comments
Melt Temperature	330 °C	Injection Molding
Mold Temperature	100 °C	Injection Molding
Ejection Temperature	183 °C
Injection Velocity	200 mm/sec

Descriptive Properties
Effective thermal diffusivity	0.1E-6 m²/s	Melt

**
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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