SK Chemicals SKYTHANE® T870A Polyester Based, Low Hardness Thermoplastic Polyurethane Elastomer

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SK Chemicals SKYTHANE® T870A Polyester Based, Low Hardness Thermoplastic Polyurethane Elastomer (discontinued **)
Categories:	Polymer; Thermoplastic; Elastomer, TPE; Polyurethane, TP; Thermoplastic Polyurethane, Elastomer, Polyester Grade
Material Notes:	Description: SK Chemicals has supplied Thermoplastic Polyurethane Elastomer (TPU) under the name of SKYTHANE. Applications include: Keyboard Covers Outsoles of Soccer Shoes Wire and Cable Airbags Sheets and Film Hoses and Tubing Shoe Components Fire Hoses Information provided by SK Chemicals.
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Physical Properties	Metric	English	Comments

Specific Gravity	1.15 g/cc	1.15 g/cc	ASTM D792
Linear Mold Shrinkage	0.0020 cm/cm	0.0020 in/in	ASTM D955

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	78	78	ASTM D2240
Hardness, Shore D	28	28	ASTM D2240
Tensile Strength, Ultimate	27.5 MPa	3980 psi	ASTM D412
Elongation at Break	850 %	850 %	ASTM D412
100% Modulus	3.55 MPa @Strain 100 %	515 psi @Strain 100 %	ASTM D412
300% Modulus	7.10 MPa @Strain 300 %	1030 psi @Strain 300 %	ASTM D412
Resilience	52	52	Vertical Rebound; ASTM D2632
Tear Strength	88.3 kN/m	504 pli	Die C; ASTM D624
Taber Abrasion, mg/1000 Cycles	25	25	H18 wheel, 1000g load; ASTM D1044

Thermal Properties	Metric	English	Comments
Vicat Softening Point	75.0 °C	167 °F	ASTM D1525

Processing Properties	Metric	English	Comments
Processing Temperature	175 °C	347 °F	Transition Temperature
	175 °C	347 °F	Metering Temperature
Middle Barrel Temperature	170 °C	338 °F
Nozzle Temperature	180 °C	356 °F
Mold Temperature	20.0 - 40.0 °C	68.0 - 104 °F

**
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PSK009 / 67744

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