Covestro Desmopan® 9659DU Polyurethane

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Covestro Desmopan® 9659DU Polyurethane
Categories:	Polymer; Thermoplastic; Polyurethane, TP
Material Notes:	Extrusion- and injection molding grade; with special UV stabilizers; transparent up to 6 mm wall thickness; very good hydrolysis and microbial resistance; Application; Ski boot shells; Hoses, non-reinforced 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	1.16 g/cc	ISO 1183

Mechanical Properties	Original Value	Comments
Hardness, Shore A	97	ISO 868
Hardness, Shore D	58	ISO 868
Tensile Strength, Ultimate	52.7 MPa	200 mm/min; DIN 53504
Tensile Stress at Strain	10.9 MPa @Strain 10 %	200 mm/min; DIN 53504
	19.6 MPa @Strain 50 %	200 mm/min; DIN 53504
	25.4 MPa @Strain 100 %	200 mm/min; DIN 53504
	31.2 MPa @Strain 300 %	200 mm/min; DIN 53504
Elongation at Break	324 %	200 mm/min; DIN 53504
Tensile Modulus	0.128 GPa @Temperature 60.0 °C	storage; ISO 6421-1,-4
	0.502 GPa @Temperature 20.0 °C	storage; ISO 6421-1,-4
	2.00 GPa @Temperature -20.0 °C	storage; ISO 6421-1,-4
Flexural Modulus	0.165 GPa	2 mm/min; ISO 178
Rebound	29 %	Resilience; ISO 4662
Tear Strength	89.0 kN/m	500 mm/min; ISO 34-1
Abrasion	20	mm³, Method A; ISO 4649
Compression Set	37 % @Temperature 23.0 °C	72 hr; ISO 815
	82 % @Temperature 70.0 °C	24 hr; ISO 815

Processing Properties	Original Value	Comments
Melt Temperature	205 - 235 °C	Extrusion
	220 - 240 °C	Injection
Mold Temperature	40.0 - 60.0 °C	Injection
Drying Temperature	110 °C

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PB09820 / 92660

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