ExxonMobil Santoprene® 241-73W236 Thermoplastic Elastomer

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ExxonMobil Santoprene® 241-73W236 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 NSF 61 for plumbing applications in contact with potable water and contains a stabilization system for protection against copper and other metal-catalyzed degradation. 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. Key Features: Complies with NSF Standard 61: Piping System Components for Drinking Water. Compliant to EU Directive 2003/11/EC regarding marketing and use of certain dangerous substances and preparations, specifically pentabromodiphenyl ether or octabromodiphenyl ether. EU and China RoHS compliant. Applications: Plumbing – Potable Water Seals and Gaskets Tubing Uses: Plumbing Parts Availability: Africa & Middle East, Europe, North America, Asia Pacific, Latin America and South America Information provided by ExxonMobil Chemcial
Key Words:	EU 2003/11/EC; NSF 51; NSF 61; RoHS Compliant; UL QMFZ2; UL QMFZ8
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Physical Properties	Metric	English	Comments

Specific Gravity	0.970 g/cc	0.970 g/cc	ASTM D792

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	79	79	2 mm, 15 sec; ISO 868
Tensile Strength at Break	8.83 MPa	1280 psi	Across Flow; ASTM D412
Tensile Stress at Strain	3.60 MPa @Strain 100 %	522 psi @Strain 100 %	Across Flow; ASTM D412
Elongation at Break	490 %	490 %	Across Flow; ASTM D412
Compression Set	25 % @Temperature 22.8 °C, Time 79200 sec	25 % @Temperature 73.0 °F, Time 22.0 hour	ASTM D395
	57 % @Temperature 100 °C, Time 605000 sec	57 % @Temperature 212 °F, Time 168 hour	ASTM D395

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
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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