Covestro Makroblend® UT-640 G Polycarbonate + Polyester Blend

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Covestro Makroblend® UT-640 G Polycarbonate + Polyester Blend (discontinued **)
Categories:	Polymer; Thermoplastic; Polycarbonate (PC); Polyester, TP
Material Notes:	Key Features: Contains Filler High impact or high impact modified Light stabilized or stable to light Suitable processing methods: Injection molding Information provided by Bayer Polymers. As of 1 September 2015, Bayer MaterialScience was separated from Bayer AG and officially adopted its new name – Covestro.
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Physical Properties	Original Value	Comments

Density	1.37 g/cc
Water Absorption	0.23 %
Moisture Absorption at Equilibrium	0.080 %	23°C/50% R.H.
Melt Flow	12 g/10 min @Load 5.00 kg, Temperature 265 °C	cm³/10 min.

Mechanical Properties	Original Value	Comments
Tensile Strength, Yield	90.0 MPa
Elongation at Break	5.0 %	Nominal
Elongation at Yield	5.0 %
Tensile Modulus	3.90 GPa

Electrical Properties	Original Value	Comments
Volume Resistivity	>= 1.00e+13 ohm-cm
Dielectric Constant	3.3 @Frequency 100 Hz
	3.3 @Frequency 1e+6 Hz
Dielectric Strength	28.0 kV/mm
Dissipation Factor	0.00090 @Frequency 1e+6 Hz
Comparative Tracking Index	175 V

Thermal Properties	Original Value	Comments
CTE, linear, Parallel to Flow	40.0 µm/m-°C @Temperature 20.0 °C
CTE, linear, Transverse to Flow	40.0 µm/m-°C @Temperature 20.0 °C
Deflection Temperature at 0.46 MPa (66 psi)	179 °C
Deflection Temperature at 1.8 MPa (264 psi)	122 °C
Flammability, UL94	HB @Thickness 1.50 mm	UL Recognized
	HB @Thickness 3.00 mm	UL Recognized

Processing Properties	Original Value	Comments
Melt Temperature	270 °C	Injection Molding
Mold Temperature	82.0 °C	Injection Molding
Injection Pressure	60.0 MPa

**
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