Covestro Desmopan® 9868DU Polyurethane

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Covestro Desmopan® 9868DU Polyurethane
Categories:	Polymer; Thermoplastic; Polyurethane, TP
Material Notes:	injection molding grade very good hydrolysis and microbial resistance very good low-temperature impact strength opaque Cylindrical pellets Application Boot shells Technical 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	1.17 g/cc	0.0423 lb/in³	ISO 1183

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	98	98	ISO 868
Hardness, Shore D	65	65	ISO 868
Tensile Strength, Ultimate	52.0 MPa	7540 psi	200 mm/min; DIN 53504
Tensile Stress at Strain	21.0 MPa @Strain 10 %	3050 psi @Strain 10 %	200 mm/min; DIN 53504
	25.0 MPa @Strain 50 %	3630 psi @Strain 50 %	200 mm/min; DIN 53504
	28.0 MPa @Strain 100 %	4060 psi @Strain 100 %	200 mm/min; DIN 53504
	43.0 MPa @Strain 300 %	6240 psi @Strain 300 %	200 mm/min; DIN 53504
Elongation at Break	367 %	367 %	200 mm/min; DIN 53504
Tensile Modulus	0.268 GPa @Temperature 60.0 °C	38.9 ksi @Temperature 140 °F	storage; ISO 6721-1,-4
	0.684 GPa @Temperature 20.0 °C	99.2 ksi @Temperature 68.0 °F	storage; ISO 6721-1,-4
	1.20 GPa @Temperature -20.0 °C	174 ksi @Temperature -4.00 °F	storage; ISO 6721-1,-4
Flexural Modulus	0.548 GPa	79.5 ksi	2 mm/min; ISO 178
Rebound	53 %	53 %	Resilience; ISO 4662
Tear Strength	160 kN/m	913 pli	500 mm/min; ISO 34-1
Abrasion	37	37	mm³, Method A; ISO 4649
Compression Set	48 % @Temperature 23.0 °C	48 % @Temperature 73.4 °F	72 hr; ISO 815
	55 % @Temperature 70.0 °C	55 % @Temperature 158 °F	24 hr; ISO 815
	32 % @Temperature 70.0 °C, Time 86400 sec	32 % @Temperature 158 °F, Time 24.0 hour	Method C; ISO 815-1

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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PB09823 / 92663

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