ExxonMobil Santoprene® 121-70B230 Thermoplastic Elastomer

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ExxonMobil Santoprene® 121-70B230 Thermoplastic Elastomer
Categories:	Polymer; Thermoplastic; Elastomer, TPE; Thermoplastic Vulcanizate Elastomer (TPV)
Material Notes:	A soft, black thermoplastic vulcanizate (TPV) in the thermoplastic elastomer (TPE) family. This material is specially formulated to bond to sulfur or peroxide-cured thermoset EPDM rubber for corner molding, end caps and special fixation applications, and for COF enhancement. This grade of Santoprene TPV is shear-dependent and can be processed on conventional thermoplastics equipment for injection molding. It is polyolefin based and completely recyclable. Key Features: Specially formulated to replace thermoset EPDM rubber in automotive glass run channel corner molding applications. Designed for shorter processing time compared to thermoset EPDM rubber. Adheres to vulcanized EPDM rubber over wide range of temperatures. Adheres to TPV over wide range of temperatures. Enhanced COF properties. Good UV resistance. Low fogging. Paint stain resistant. Applications: Automotive- Weather Seals Uses: Automotive Applications Automotive Exterior Trim Availability: Africa & Middle East, Europe, North America, Asia Pacific, Latin America and South America Information provided by ExxonMobil Chemical
Key Words:	EU 2003/11/EC; RoHS Compliant
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Physical Properties	Original Value	Comments

Specific Gravity	0.920 g/cc	ASTM D792

Mechanical Properties	Original Value	Comments
Hardness, Shore A	71	2 mm, 15 sec; ISO 868
Tensile Strength at Break	870 psi	Across Flow; ASTM D412
Tensile Stress at Strain	377 psi @Strain 100 %	Across Flow; ASTM D412
Elongation at Break	470 %	Across Flow; ASTM D412
Compression Set	44 % @Temperature 70.0 °C, Time 79200 sec	ASTM D395

Processing Properties	Original Value	Comments
Processing Temperature	175 - 230 °C

Descriptive Properties
Change in Mass in IRM 903 Oil at 257°F for 70 hr	54
Color	Black
Form	Pellets

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