Lubrizol Estane® T370A Thermoplastic Polyurethane

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Lubrizol Estane® T370A Thermoplastic Polyurethane (discontinued **)
Categories:	Polymer; Thermoplastic; Polyurethane, TP; Thermoplastic Polyurethane (TPUR), Polyether Grade
Material Notes:	Type: Estane® T370A is a Shore 74A, polyether grade, plasticizer-free, with low hardness thermoplastic polyurethane (TPU). Uses: Injection Molding, Extrusion. Availability: Asia Information Provided by The Lubrizol Corporation
Key Words:	TPU
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Physical Properties	Metric	English	Comments

Specific Gravity	1.06 g/cc	1.06 g/cc	ASTM D792
Linear Mold Shrinkage	0.0060 cm/cm	0.0060 in/in	ASTM D955

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	75	75	ASTM D2240
Tensile Strength, Ultimate	24.5 MPa	3560 psi	ASTM D412
Tensile Strength, Yield	3.14 MPa	455 psi	at 100% elongation; ASTM D412
	5.59 MPa	811 psi	at 300% elongation; ASTM D412
Elongation at Break	900 %	900 %	ASTM D412
Tear Strength	68.6 kN/m	392 pli	Die C; ASTM D624
Compression Set	10 % @Temperature 23.0 °C, Time 79200 sec	10 % @Temperature 73.4 °F, Time 22.0 hour	ASTM D395
	30 % @Temperature 70.0 °C, Time 79200 sec	30 % @Temperature 158 °F, Time 22.0 hour	ASTM D395

Thermal Properties	Metric	English	Comments
Vicat Softening Point	70.0 °C	158 °F	ASTM D1525

Processing Properties	Metric	English	Comments
Feed Temperature	185 - 190 °C	365 - 374 °F
Nozzle Temperature	195 - 205 °C	383 - 401 °F
Mold Temperature	10.0 - 40.0 °C	50.0 - 104 °F
Drying Temperature	70.0 - 80.0 °C	158 - 176 °F
Dry Time	4.00 - 5.00 hour	4.00 - 5.00 hour
Injection Pressure	8.27 - 13.8 MPa	1200 - 2000 psi
Hold Pressure	5.52 - 9.65 MPa	800 - 1400 psi
Back Pressure	0.207 - 0.552 MPa	30.0 - 80.0 psi
Cycle Time - Injection	34 - 50 sec	34 - 50 sec
Screw Speed	160 - 200 rpm	160 - 200 rpm

Descriptive Properties
Injection Time (s)	10-15
Metering Zone	190-200°C

**
Materials flagged as discontinued () are no longer part of the manufacturer’s standard product line according to our latest information. These materials may be available by special order, in distribution inventory, or reinstated as an active product. Data sheets from materials that are no longer available remain in MatWeb to assist users in finding replacement materials.

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