SK Chemicals SKYTHANE® R185A Polyether Based Thermoplastic Polyurethane Elastomer

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SK Chemicals SKYTHANE® R185A Polyether Based Thermoplastic Polyurethane Elastomer (discontinued **)
Categories:	Polymer; Thermoplastic; Elastomer, TPE; Polyurethane, TP; Thermoplastic Polyurethane, Elastomer, Ether 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	1.10 g/cc	1.10 g/cc	ASTM D792
Linear Mold Shrinkage	0.0035 cm/cm	0.0035 in/in	ASTM D955

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	87	87	ASTM D2240
Hardness, Shore D	36	36	ASTM D2240
Tensile Strength, Ultimate	31.4 MPa	4550 psi	ASTM D412
Elongation at Break	700 %	700 %	ASTM D412
100% Modulus	5.86 MPa @Strain 100 %	850 psi @Strain 100 %	ASTM D412
300% Modulus	9.65 MPa @Strain 300 %	1400 psi @Strain 300 %	ASTM D412
Resilience	50	50	Vertical Rebound; ASTM D2632
Tear Strength	93.2 kN/m	532 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	90.0 °C	194 °F	ASTM D1525

Processing Properties	Metric	English	Comments
Processing Temperature	190 °C	374 °F	Transition Temperature
	190 °C	374 °F	Metering Temperature
Middle Barrel Temperature	185 °C	365 °F
Nozzle Temperature	195 °C	383 °F
Zone 1	175 °C	347 °F
Zone 2	180 °C	356 °F
Zone 3	185 °C	365 °F
Zone 4	190 °C	374 °F
Adapter Temperature	190 °C	374 °F
Die Temperature	190 °C	374 °F	Tip
	195 °C	383 °F	Body
Mold Temperature	20.0 - 40.0 °C	68.0 - 104 °F

**
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