ExxonMobil Santoprene® 271-80 Thermoplastic Elastomer

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ExxonMobil Santoprene® 271-80 Thermoplastic Elastomer
Categories:	Polymer; Thermoplastic; Elastomer, TPE; Thermoplastic Vulcanizate Elastomer (TPV)
Material Notes:	A soft, colorable, specialty thermoplastic vulcanizate (TPV) in the thermoplastic elastomer (TPE) family. It complies with FDA regulations for rubber articles intended for repeated use, as well as those in contact with non-fatty, non-oily foods as closures and sealing gaskets. 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. Recommended for applications requiring excellent ozone resistance. Information provided by Advanced Elastomer Systems
Key Words:	EU 2003/11/EC; FDA 21 CFR 177.1210; FDA 21 CFR 177.2600; NSF 51; RoHS Compliant; UL QMFZ2; UL QMFZ8
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Physical Properties	Metric	English	Comments

Specific Gravity	0.960 g/cc	0.960 g/cc	ASTM D792

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	80	80	.12 in; ASTM D2240
Tensile Strength at Break	8.3254 MPa	1207.5 psi	257°F, 70 hr, in IRM 903 Oil; ASTM D471
	10.546 MPa	1529.5 psi	Air at 302°F, 168 hr; ASTM D573
	11.1 MPa	1610 psi	Across Flow; ASTM D412
Tensile Strength, Ultimate	4.69 MPa	680 psi	Across Flow; ASTM D412
Elongation at Break	307.8 %	307.8 %	257°F, 70 hr, in IRM 903 Oil; ASTM D471
	475.2 %	475.2 %	Air at 302°F, 168 hr; ASTM D573
	540 %	540 %	Across Flow; ASTM D412
Tear Strength	35.1 kN/m	200 pli	73°F, Die C; ASTM D624
Compression Set	41 % @Temperature 70.0 °C, Time 79200 sec	41 % @Temperature 158 °F, Time 22.0 hour	ASTM D395
	47 % @Temperature 125 °C, Time 252000 sec	47 % @Temperature 257 °F, Time 70.0 hour	ASTM D395

Thermal Properties	Metric	English	Comments
Brittleness Temperature	-60.0 °C	-76.0 °F	ASTM D746

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	182 °C	360 °F
Nozzle Temperature	193 - 232 °C	380 - 450 °F
Die Temperature	210 °C	410 °F	Extrusion
Melt Temperature	204 °C	400 °F	Extrusion
	199 - 232 °C	390 - 450 °F
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

Compliance Properties	Metric	English	Comments
FDA	Yes	Yes

Descriptive Properties
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

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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