Covestro Desmopan® 3072D Polyurethane

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Covestro Desmopan® 3072D Polyurethane
Categories:	Polymer; Thermoplastic; Polyurethane, TP
Material Notes:	injection molding grade high mechanical strength excellent abrasion resistance good wear resistance very short cycle times Application 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	Original Value	Comments

Density	1.24 g/cc	ISO 1183

Mechanical Properties	Original Value	Comments
Hardness, Shore A	98	ISO 868
Hardness, Shore D	72	ISO 868
Tensile Strength, Ultimate	60.0 MPa	200 mm/min; DIN 53504
Tensile Stress at Strain	34.0 MPa @Strain 100 %	200 mm/min; DIN 53504
	52.0 MPa @Strain 300 %	200 mm/min; DIN 53504
Elongation at Break	350 %	200 mm/min; DIN 53504
Tensile Modulus	0.385 GPa @Temperature 60.0 °C	storage; ISO 6721-1,-4
	1.275 GPa @Temperature 20.0 °C	storage; ISO 6721-1,-4
	3.33 GPa @Temperature -20.0 °C	storage; ISO 6721-1,-4
Flexural Modulus	0.800 GPa	2 mm/min; ISO 178
Rebound	47 %	Resilience; ISO 4662
Tear Strength	256 kN/m	500 mm/min; ISO 34-1
Abrasion	20	mm³, Method A; ISO 4649
Compression Set	29 % @Temperature 23.0 °C	72 hr; ISO 815
	49 % @Temperature 70.0 °C	24; ISO 815

Processing Properties	Original Value	Comments
Melt Temperature	225 - 245 °C	Injection
Mold Temperature	60.0 - 80.0 °C	Injection
Drying Temperature	110 °C

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PB09788 / 92628

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