Lubrizol ESTAGRIP® ST70A Polyether-Type Thermoplastic Polyurethane

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Lubrizol ESTAGRIP® ST70A Polyether-Type Thermoplastic Polyurethane
Categories:	Polymer; Thermoplastic; Elastomer, TPE; Polyurethane, TP; Thermoplastic Polyurethane, Elastomer, Ether Grade
Material Notes:	Features: Low durometer soft feel for excellent grip; outstanding adhesion Uses: Injection Molding - Overmolding Availability: Americas, Europe, Middle East, Africa, India and Asia Information provided by Lubrizol
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Physical Properties	Metric	English	Comments

Specific Gravity	1.05 g/cc	1.05 g/cc	ASTM D792

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	67 - 73 @Time 5.00 sec	67 - 73 @Time 0.00139 hour	ASTM D2240
Tensile Strength	22.1 MPa	3210 psi	ASTM D412
Tensile Stress at Strain	2.60 MPa @Strain 100 %	377 psi @Strain 100 %	ASTM D412
	4.50 MPa @Strain 300 %	653 psi @Strain 300 %	ASTM D412
Elongation at Break	850 %	850 %	ASTM D412
Graves Tear Strength	61.4 kN/m	350 pli	die C; ASTM D624
Taber Abrasion, mg/1000 Cycles	33	33	H-18, 1000g; ASTM D3389 B

Thermal Properties	Metric	English	Comments
Glass Transition Temp, Tg	-57.0 °C	-70.6 °F	by DSC

Processing Properties	Metric	English	Comments
Rear Barrel Temperature	218 °C	424 °F
Middle Barrel Temperature	221 °C	430 °F
Front Barrel Temperature	227 °C	441 °F
Nozzle Temperature	227 °C	441 °F
Melt Temperature	227 °C	441 °F	pyrometer check of air shot

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PNOVEON000 / 55265

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