ExxonMobil Santoprene® 221-73 Thermoplastic Elastomer (discontinued **)

Category	Polymer , Thermoplastic , Elastomer, TPE , Thermoplastic Vulcanizate Elastomer (TPV)
Manufacturer
Trade Name
Port	Ningbo port,China
Trade Terms	FOB, CFR, CIF
Payment Terms	L/C, T/T, Western Union
Download PDF	ExxonMobil Santoprene® 221-73 Thermoplastic Elastomer (discontinued **).pdf
Price	EMAIL US sales@lookpolymers.com
	Online Service lookpolymers 27660005

Material Notes:

A soft, colorable, UV resistant thermoplastic vulcanizate (TPV) in the thermoplastic elastomer (TPE) family. This material combines good physical properties and chemical resistance for use in a wide range of applications. This grade of Santoprene TPV is shear-dependent and can be processed on conventional thermoplastics equipment for injection molding, extrusion or blow molding. It is polyolefin based and completely recyclable.Recommended for applications requiring excellent flex fatigue resistance.Excellent ozone resistance.Designed for improved UV resistance.Information provided by Advanced Elastomer Systems

Physical Properties	Metric	English	Comments
Specific Gravity	0.970 g/cc	0.970 g/cc	23°C; ASTM D792

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	73	73	.12 in; ASTM D2240
	78	78	Air at 275°F, 1008 hr; ASTM D573
Tensile Strength at Break	8.83 MPa	1280 psi	Across Flow; ASTM D412
	9.708 MPa	1408 psi	Air at 275°F, 1008 hr; ASTM D573
Tensile Strength, Ultimate	3.59 MPa	520 psi	Across Flow; ASTM D412
Elongation at Break	457.6 %	457.6 %	Air at 275°F, 1008 hr; ASTM D573
	520 %	520 %	Across Flow; ASTM D412
Tear Strength	27.0 kN/m	154 pli	73°F, Die C; ASTM D624
Compression Set	19 %	19 %	73°F, 22 hr; ASTM D395
	40 %	40 %	257°F, 70 hr; ASTM D395

Thermal Properties	Metric	English	Comments
Maximum Service Temperature, Air	135 °C	275 °F
Brittleness Temperature	-57.8 °C	-72.0 °F	ASTM D746

Electrical Properties	Metric	English	Comments
Dielectric Constant	2.3	2.3	ASTM D150
Dielectric Strength	35.4 kV/mm	900 kV/in	ASTM D149

Processing Properties	Metric	English	Comments
Processing Temperature	175 - 230 °C	347 - 446 °F
Rear Barrel Temperature	177 °C	350 °F
Middle Barrel Temperature	182 °C	360 °F
Front Barrel Temperature	188 °C	370 °F
Nozzle Temperature	193 - 227 °C	380 - 440 °F
Die Temperature	204 °C	400 °F	Extrusion
Melt Temperature	202 °C	395 °F	Extrusion
	199 - 232 °C	390 - 450 °F	Processing
Mold Temperature	10.0 - 51.7 °C	50.0 - 125 °F	Processing
Drying Temperature	82.2 °C	180 °F
Dry Time	3 hour	3 hour
Moisture Content	0.080 %	0.080 %
Back Pressure	0.345 - 0.689 MPa	50.0 - 100 psi	Processing
	5.00 - 20.0 MPa	725 - 2900 psi	Extrusion
Clamp Pressure	41.4 - 68.9 MPa	6000 - 10000 psi
Vent Depth	0.00254 cm	0.00100 in
Cushion	0.317 - 0.635 cm	0.125 - 0.250 in
Screw Speed	100 - 200 rpm	100 - 200 rpm

Descriptive Properties	Value	Comments
Color	Natural Color
Form	Pellets
Injection Rate	Fast
Maximum Regrind %	20
Screw Compression Ratio	2:1 - 2.5:1
Screw L/D Ratio	16:1 - 20:1

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