Covestro Desmopan® 9873DU Polyurethane

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Covestro Desmopan® 9873DU Polyurethane
Categories:	Polymer; Thermoplastic; Polyurethane, TP
Material Notes:	injection molding grade very good hydrolysis and microbial resistance very good low-temperature impact strength Application Boot shells Injection molded engineering parts 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	Metric	English	Comments

Density	1.18 g/cc	0.0426 lb/in³	ISO 1183

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	98	98	ISO 868
Hardness, Shore D	71	71	ISO 868
Tensile Strength, Ultimate	53.0 MPa	7690 psi	200 mm/min; DIN 53504
Tensile Stress at Strain	34.0 MPa @Strain 10 %	4930 psi @Strain 10 %	200 mm/min; DIN 53504
	34.0 MPa @Strain 50 %	4930 psi @Strain 50 %	200 mm/min; DIN 53504
	35.0 MPa @Strain 100 %	5080 psi @Strain 100 %	200 mm/min; DIN 53504
	47.0 MPa @Strain 300 %	6820 psi @Strain 300 %	200 mm/min; DIN 53504
Elongation at Break	342 %	342 %	200 mm/min; DIN 53504
Tensile Modulus	0.486 GPa @Temperature 60.0 °C	70.5 ksi @Temperature 140 °F	storage; ISO 6721-1,-4
	1.035 GPa @Temperature 20.0 °C	150.1 ksi @Temperature 68.0 °F	storage; ISO 6721-1,-4
	1.49 GPa @Temperature -20.0 °C	216 ksi @Temperature -4.00 °F	storage; ISO 6721-1,-4
Flexural Modulus	1.04 GPa	151 ksi	2 mm/min; ISO 178
Rebound	66 %	66 %	Resilience; ISO 4662
Tear Strength	203 kN/m	1160 pli	500 mm/min; ISO 34-1
Abrasion	56	56	mm3, Method A; ISO 4649
Compression Set	60 % @Temperature 23.0 °C	60 % @Temperature 73.4 °F	72 hr; ISO 815
	61 % @Temperature 70.0 °C	61 % @Temperature 158 °F	24 hr; ISO 815

Processing Properties	Metric	English	Comments
Melt Temperature	225 - 235 °C	437 - 455 °F	Injection
Mold Temperature	40.0 - 60.0 °C	104 - 140 °F	Injection
Drying Temperature	110 °C	230 °F

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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PB09824 / 92664

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