Covestro Desmopan® 453 Urethane Thermoplastic Elastomer

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Covestro Desmopan® 453 Urethane Thermoplastic Elastomer (discontinued **)
Categories:	Polymer; Thermoplastic; Elastomer, TPE; Polyurethane, TP
Material Notes:	Key Features: Unfilled Suitable processing methods: Injection molding 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.
Key Words:	TPU
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Physical Properties	Metric	English	Comments

Density	1.22 g/cc	0.0441 lb/in³

Mechanical Properties	Metric	English	Comments
Tensile Strength, Yield	12.0 MPa	1740 psi	Stress at 50% Strain
Elongation at Break	>= 50 %	>= 50 %

Electrical Properties	Metric	English	Comments
Volume Resistivity	2.30e+12 ohm-cm	2.30e+12 ohm-cm
Surface Resistance	3.00e+12 ohm	3.00e+12 ohm
Dielectric Constant	4.5 @Frequency 1e+6 Hz	4.5 @Frequency 1e+6 Hz
	5.5 @Frequency 100 Hz	5.5 @Frequency 100 Hz
Dielectric Strength	19.7 kV/mm	500 kV/in
Dissipation Factor	0.027 @Frequency 100 Hz	0.027 @Frequency 100 Hz
	0.069 @Frequency 1e+6 Hz	0.069 @Frequency 1e+6 Hz
Comparative Tracking Index	600 V	600 V

Thermal Properties	Metric	English	Comments
CTE, linear, Parallel to Flow	163 µm/m-°C @Temperature 20.0 °C	90.6 µin/in-°F @Temperature 68.0 °F
Vicat Softening Point	145 °C	293 °F	50°C/h 50N

Processing Properties	Metric	English	Comments
Melt Temperature	210 °C	410 °F	Injection Molding
Mold Temperature	30.0 °C	86.0 °F	Injection Molding
Injection Pressure	50.0 MPa	7250 psi

**
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PB10047 / 26085

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