Lubrizol ESTANE® 58237 Ether Based Thermoplastic Polyurethane

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Lubrizol ESTANE® 58237 Ether Based Thermoplastic Polyurethane
Categories:	Polymer; Thermoplastic; Elastomer, TPE; Polyurethane, TP; Thermoplastic Polyurethane, Elastomer, Ether Grade
Material Notes:	Features: High moisture vapor transmission. Good physical properties and elasticity. Uses: Blown and flat die/cast film extrusion. Available in Americas, Europe, Middle East, Africa, India and Asia Information provided by Lubrizol.
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Physical Properties	Metric	English	Comments

Specific Gravity	1.22 g/cc	1.22 g/cc	ASTM D792
Water Vapor Transmission	500 g/m²/day @Temperature 23.0 °C	32.2 g/100 in²/day @Temperature 73.4 °F	50% RH; ASTM E96B
	3000 g/m²/day @Temperature 38.0 °C	193 g/100 in²/day @Temperature 100 °F	90% RH; ASTM D6701
Maximum Moisture Content	0.020	0.020
Linear Mold Shrinkage	0.0080 cm/cm	0.0080 in/in	flex bar, Injection
	0.0090 cm/cm	0.0090 in/in	disk, Injection

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	87 - 93 @Time 5.00 sec	87 - 93 @Time 0.00139 hour	ASTM D2240
Tensile Strength	34.5 MPa	5000 psi	ASTM D412
Elongation at Break	550 %	550 %	ASTM D412
100% Modulus	6.20 MPa @Strain 100 %	899 psi @Strain 100 %	ASTM D412
300% Modulus	13.8 MPa @Strain 300 %	2000 psi @Strain 300 %	ASTM D412
Flexural Modulus	0.370 GPa	53.7 ksi	ASTM D790
Tear Strength	78.9 kN/m	450 pli	Trouser; ASTM D470
Graves Tear Strength	21.0 kN/m	120 pli	Die C; ASTM D624
Taber Abrasion, mg/1000 Cycles	40	40	H18, 1000g; ASTM D3389
Compression Set	42 % @Temperature 23.0 °C, Time 79200 sec	42 % @Temperature 73.4 °F, Time 22.0 hour	ASTM D395
	61 % @Temperature 70.0 °C, Time 79200 sec	61 % @Temperature 158 °F, Time 22.0 hour	ASTM D395
Tensile Set	18 %	18 %	ASTM D412/D638
	18 %	18 %	200% elongation; ASTM D412

Thermal Properties	Metric	English	Comments
Melting Point	144 °C	291 °F	DSC
	155 °C	311 °F	Kofler
Glass Transition Temp, Tg	-24.0 °C	-11.2 °F	DSC

Processing Properties	Metric	English	Comments
Zone 1	177 °C	351 °F	Extrusion
Zone 2	182 °C	360 °F	Extrusion
Zone 3	188 °C	370 °F	Extrusion
Zone 4	193 °C	379 °F	Extrusion
Adapter Temperature	199 °C	390 °F	5, Extrusion
Die Temperature	199 °C	390 °F	Zone 1, Extrusion
	199 °C	390 °F	Zone 2, Extrusion
Drying Temperature	82.0 °C	180 °F
Dry Time	2.00 - 4.00 hour	2.00 - 4.00 hour
Dew Point	-40.0 °C	-40.0 °F

Descriptive Properties
Volume Swell in Water	40%		24h @ 23°C, ASTM D471

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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