ExxonMobil Santoprene® 121-80 Thermoplastic Elastomer

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ExxonMobil Santoprene® 121-80 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 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. Key Features: UL listed: file #QMFZ2.E80017, Plastics - Component; file #QMFZ8.E80017, Plastics Certified For Canada - Component. Although not NSF certified, this product has a Material Supplier Form on file with NSF to facilitate its evaluation for use in applications requiring NSF certification. Recommended for applications requiring excellent flex fatigue resistance. Excellent ozone resistance. Designed for improved UV resistance. EU and China RoHS compliant. Applications: Automotive- Seals and Gaskets Uses: Automotive Applications 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	0.970 g/cc	ASTM D792

Mechanical Properties	Original Value	Comments
Hardness, Shore A	85	2 mm, 15 sec; ISO 868
	92	Air at 275°F, 1008 hr; ASTM D573
Tensile Strength at Break	1552 psi	Air at 275°F, 1008 hr; ASTM D573
	1600 psi	Across Flow; ASTM D412
Tensile Stress at Strain	667 psi @Strain 100 %	Across Flow; ASTM D412
Elongation at Break	477 %	Air at 275°F, 1008 hr; ASTM D573
	530 %	Across Flow; ASTM D412
Tear Strength	200 pli	73°F, Die C, Across Flow; ASTM D624
Compression Set	25 % @Temperature 22.8 °C, Time 79200 sec	ASTM D395
	52 % @Temperature 125 °C, Time 252000 sec	ASTM D395

Electrical Properties	Original Value	Comments
Dielectric Constant	2.6	1.96 mm; ASTM D150
Dielectric Strength	710 V/mil	2.03 mm; ASTM D149

Thermal Properties	Original Value	Comments
Maximum Service Temperature, Air	275 °F
Brittleness Temperature	-74.0 °F	ASTM D746
UL RTI, Electrical	90.0 °C	UL 746
UL RTI, Mechanical with Impact	90.0 °C @Thickness 1.00 mm	UL 746
	90.0 °C @Thickness 1.50 mm	UL 746
	95.0 °C @Thickness 3.00 mm	UL 746
Flammability, UL94	HB @Thickness 1.00 mm
	HB @Thickness 1.50 mm
	HB @Thickness 3.00 mm

Processing Properties	Original Value	Comments
Processing Temperature	175 - 230 °C
Rear Barrel Temperature	350 °F
Middle Barrel Temperature	360 °F
Front Barrel Temperature	370 °F
Nozzle Temperature	380 - 450 °F
Die Temperature	400 °F	Extrusion
Melt Temperature	395 °F	Extrusion
	390 - 450 °F	Processing
Mold Temperature	50.0 - 125 °F	Processing
Drying Temperature	180 °F
Dry Time	3 hour
Moisture Content	0.080 %
Back Pressure	50.0 - 100 psi	Processing
	725 - 2900 psi	Extrusion
Clamp Pressure	6000 - 10000 psi
Vent Depth	0.00100 in
Cushion	0.125 - 0.250 in
Screw Speed	100 - 200 rpm

Descriptive Properties
Color	Black
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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