ExxonMobil Santoprene® 121-58W175 Thermoplastic Elastomer

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ExxonMobil Santoprene® 121-58W175 Thermoplastic Elastomer
Categories:	Polymer; Thermoplastic; Elastomer, TPE; Thermoplastic Vulcanizate Elastomer (TPV)
Material Notes:	A soft, black, UV resistant thermoplastic vulcanizate (TPV) in the thermoplastic elastomer (TPE) family. This material combines good physical properties and chemical resistance, and is designed for thin wall or complex profile extrusion applications. This grade of Santoprene TPV is shear-dependent and can be processed on conventional thermoplastics equipment for extrusion. It is polyolefin based and completely recyclable. Key Features: Recommended for applications requiring excellent flex fatigue resistance. Excellent ozone resistance. Designed for improved UV resistance. Designed for extruding thin sections with excellent definition (down to 0.33 mm [0.013"] radius). Long runs with minimal build-up of material on screen packs or narrow die sections. EU and China RoHS compliant. Applications: Automotive- Weather Seals Uses: Automotive Applications Automotive Interior Trim 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; RoHS Compliant
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Physical Properties	Original Value	Comments

Specific Gravity	0.970 g/cc	ASTM D792

Mechanical Properties	Original Value	Comments
Hardness, Shore A	62	2 mm, 15 sec; ISO 868
	67	Air at 302°F, 168 hr; ASTM D573
Tensile Strength at Break	653 psi	Air at 302°F, 168 hr; ASTM D573
	725 psi	Across Flow; ASTM D412
Tensile Stress at Strain	305 psi @Strain 100 %	Across Flow; ASTM D412
Elongation at Break	440 %	Across Flow; ASTM D412
	475.2 %	Air at 302°F, 168 hr; ASTM D573
Tear Strength	206 pli	73°F, Die C; ASTM D624
Compression Set	18 % @Temperature 22.8 °C, Time 79200 sec	ASTM D395
	39 % @Temperature 125 °C, Time 252000 sec	ASTM D395

Electrical Properties	Original Value	Comments
Dielectric Constant	2.7	1.96 mm; ASTM D150
Dielectric Strength	650 V/mil	2.03 mm; ASTM D149

Thermal Properties	Original Value	Comments
Maximum Service Temperature, Air	275 °F
Brittleness Temperature	-76.0 °F	ASTM D746

Processing Properties	Original Value	Comments
Processing Temperature	175 - 230 °C
Die Temperature	400 °F	Extrusion
Melt Temperature	350 - 400 °F	Extrusion
Drying Temperature	180 °F
Dry Time	3 hour
Back Pressure	725 - 2900 psi	Extrusion

Descriptive Properties
Color	Black
Form	Pellets

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