Lubrizol Estane® S375D Thermoplastic Polyurethane

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Lubrizol Estane® S375D Thermoplastic Polyurethane (discontinued **)
Categories:	Polymer; Thermoplastic; Polyurethane, TP; Thermoplastic Polyurethane (TPUR), Polyester Grade
Material Notes:	Type: Estane® S375D is a Shore 78D, polyester based thermoplastic polyurethane (TPU) with excellent transparency. FDA approved (21 CFR 177.2600, 177.1680). Uses: Injection Molding. Availability: Asia Information Provided by The Lubrizol Corporation
Key Words:	TPU
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Physical Properties	Original Value	Comments

Specific Gravity	1.28 g/cc	ASTM D792
Linear Mold Shrinkage	0.0030 cm/cm	ASTM D955

Mechanical Properties	Original Value	Comments
Hardness, Shore D	78	ASTM D2240
Tensile Strength, Ultimate	450 kg(f)/cm²	ASTM D412
Tensile Strength, Yield	330 kg(f)/cm²	at 100% elongation; ASTM D412
	430 kg(f)/cm²	at 300% elongation; ASTM D412
Elongation at Break	330 %	ASTM D412
Tear Strength	260 kg(f)/cm	Die C; ASTM D624
Abrasion	25	mm³ loss; ISO 4649
Compression Set	35 % @Temperature 23.0 °C, Time 79200 sec	ASTM D395
	40 % @Temperature 70.0 °C, Time 79200 sec	ASTM D395

Thermal Properties	Original Value	Comments
Vicat Softening Point	130 °C	ASTM D1525

Processing Properties	Original Value	Comments
Feed Temperature	210 - 225 °C
Nozzle Temperature	225 - 235 °C
Mold Temperature	10.0 - 40.0 °C
Drying Temperature	70.0 - 80.0 °C
Dry Time	4.00 - 5.00 hour
Injection Pressure	1800 - 2400 psi
Hold Pressure	1300 - 1900 psi
Back Pressure	30.0 - 80.0 psi
Cycle Time - Injection	25 - 30 sec
Screw Speed	160 - 200 rpm

Compliance Properties	Original Value	Comments
FDA	Yes

Descriptive Properties
Injection Time (s)	12-18
Metering Zone	220-235°C

**
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