Lubrizol ESTANE® GP72DB Ester Based Thermoplastic Polyurethane

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Lubrizol ESTANE® GP72DB Ester Based Thermoplastic Polyurethane
Categories:	Polymer; Thermoplastic; Elastomer, TPE; Polyurethane, TP; Thermoplastic Polyurethane, Elastomer, Polyester Grade
Material Notes:	Type: Estane® GP 72DB is an aromatic polyester-based thermoplastic polyurethane (TPU). Appearance: Translucent spherical pellets Uses: Injection molding parts, Translucent Available in Europe Information provided by Lubrizol.
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Physical Properties	Metric	English	Comments

Specific Gravity	1.24 g/cc	1.24 g/cc	ISO 2781
Maximum Moisture Content	0.050	0.050
Melt Flow	20 - 35 g/10 min @Load 8.70 kg, Temperature 217 °C	20 - 35 g/10 min @Load 19.2 lb, Temperature 423 °F

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	68	68	ISO 868
Tensile Strength, Ultimate	42.0 MPa	6090 psi	ISO 37
Elongation at Break	510 %	510 %	ISO 37
Tensile Modulus	0.283 GPa	41.0 ksi	ISO 527
50% Modulus	25.0 MPa @Strain 50 %	25.0 MPa @Strain 50 %	ISO 37
100% Modulus	26.0 MPa @Strain 100 %	3770 psi @Strain 100 %	ISO 37
300% Modulus	33.0 MPa @Strain 300 %	4790 psi @Strain 300 %	ISO 37
Rebound	37 %	37 %	ISO 4662
Tear Strength	220 kN/m	1260 pli	with incision; ISO 34B
	240 kN/m	1370 pli	without incision; ISO 34B
Abrasion	50	50	mm³; ISO 4649
Compression Set	22 % @Temperature 22.0 °C, Time 252000 sec	22 % @Temperature 71.6 °F, Time 70.0 hour	ISO 815
	34 % @Temperature 70.0 °C, Time 86400 sec	34 % @Temperature 158 °F, Time 24.0 hour	ISO 815

Thermal Properties	Metric	English	Comments
Vicat Softening Point	147 °C	297 °F	A50; ISO 306

Processing Properties	Metric	English	Comments
Feed Temperature	40.0 °C	104 °F	Injection
Nozzle Temperature	210 - 220 °C	410 - 428 °F	Injection
Zone 1	205 - 215 °C	401 - 419 °F	Injection
Zone 2	210 - 220 °C	410 - 428 °F	Injection
Zone 3	215 - 225 °C	419 - 437 °F	Injection
Zone 4	215 - 225 °C	419 - 437 °F	Injection
Drying Temperature	105 °C	221 °F
Dry Time	2.00 - 3.00 hour	2.00 - 3.00 hour
Dew Point	-30.0 °C	-22.0 °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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