Covestro Desmopan® DP 3970D Polyurethane, 20% Glass Filled

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Covestro Desmopan® DP 3970D Polyurethane, 20% Glass Filled (discontinued **)
Categories:	Polymer; Thermoplastic; Polyurethane, TP; Thermoplastic Polyurethane (TPUR), Glass Fiber Reinforced
Material Notes:	injection molding grade 20 % Glass fiber reinforced good heat resistance low coefficent of linear thermal expansion Application Automotive engineering 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	1.38 g/cc	0.0499 lb/in³	ISO 1183

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	99	99	3s; ISO 868
Hardness, Shore D	70	70	15s; ISO 868
Tensile Strength at Break	64.0 MPa	9280 psi	ISO 527-1/-2
Tensile Strength, Yield	64.0 MPa	9280 psi	parallel; ISO 527-3
Elongation at Break	25 %	25 %	ISO 527-1/-2
Charpy Impact Unnotched	15.0 J/cm²	71.4 ft-lb/in²	ISO 179/1eU
	8.20 J/cm² @Temperature -30.0 °C	39.0 ft-lb/in² @Temperature -22.0 °F	ISO 179/1eU
Charpy Impact, Notched	5.70 J/cm²	27.1 ft-lb/in²	ISO 179/1eA
	1.40 J/cm² @Temperature -30.0 °C	6.66 ft-lb/in² @Temperature -22.0 °F	ISO 179/1eA

Thermal Properties	Metric	English	Comments
CTE, linear, Parallel to Flow	20.0 µm/m-°C	11.1 µin/in-°F	ISO 11359-1/-2
CTE, linear, Transverse to Flow	140 µm/m-°C	77.8 µin/in-°F	ISO 11359-1/-2
Deflection Temperature at 0.46 MPa (66 psi)	150 °C	302 °F	ISO 75-1/-2
Deflection Temperature at 1.8 MPa (264 psi)	130 °C	266 °F	ISO 75-1/-2

Processing Properties	Metric	English	Comments
Drying Temperature	70.0 - 110 °C	158 - 230 °F
Dry Time	1.00 - 2.00 hour	1.00 - 2.00 hour	Dry Air Dryer
Moisture Content	<= 0.050 %	<= 0.050 %

Descriptive Properties
Availability	Asia Pacific
	Europe
	India
	Near East/Africa
	South and Central America

**
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PB09796 / 92636

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