Covestro Desmopan® 481 Polyurethane

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Covestro Desmopan® 481 Polyurethane
Categories:	Polymer; Thermoplastic; Polyurethane, TP
Material Notes:	Injection molding grade; free from plasticizers; grease and oil-resistant; low compression set; high elasticity; good heat resistance; easy release; Application; roller coating; Seals, membranes; Automotive engineering 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	1.20 g/cc	0.0434 lb/in³	ISO 1183

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	81	81	ISO 868
Hardness, Shore D	30	30	ISO 868
Tensile Strength, Ultimate	36.8 MPa	5340 psi	200 mm/min; DIN 53504
Tensile Stress at Strain	1.30 MPa @Strain 10 %	189 psi @Strain 10 %	200 mm/min; DIN 53504
	3.80 MPa @Strain 50 %	551 psi @Strain 50 %	200 mm/min; DIN 53504
	5.20 MPa @Strain 100 %	754 psi @Strain 100 %	200 mm/min; DIN 53504
	9.00 MPa @Strain 300 %	1310 psi @Strain 300 %	ISO 527-1/-2
	10.2 MPa @Strain 300 %	1480 psi @Strain 300 %	200 mm/min; DIN 53504
Elongation at Break	528 %	528 %	200 mm/min; DIN 53504
Tensile Modulus	0.0290 GPa @Temperature 60.0 °C	4.21 ksi @Temperature 140 °F	storage; ISO 6721-1,-4
	0.0300 GPa @Temperature 20.0 °C	4.35 ksi @Temperature 68.0 °F	storage; ISO 6721-1,-4
	0.106 GPa @Temperature -20.0 °C	15.4 ksi @Temperature -4.00 °F	storage; ISO 6721-1,-4
Rebound	48 %	48 %	Resilience; ISO 4662
Tear Strength	45.0 kN/m	257 pli	ISO 34-1
Abrasion	25	25	mm³, Method A; ISO 4649
Compression Set	22 % @Temperature 23.0 °C	22 % @Temperature 73.4 °F	72 hr; ISO 815
	25 % @Temperature 70.0 °C	25 % @Temperature 158 °F	24 h; ISO 815
	17 % @Temperature 70.0 °C, Time 86400 sec	17 % @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	20.0 - 40.0 °C	68.0 - 104 °F	Injection
Ejection Temperature	50.0 °C	122 °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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