ExxonMobil Santoprene® 203-40 Thermoplastic Elastomer

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ExxonMobil Santoprene® 203-40 Thermoplastic Elastomer
Categories:	Polymer; Thermoplastic; Elastomer, TPE; Thermoplastic Vulcanizate Elastomer (TPV)
Material Notes:	A hard, colorable, versatile 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 Excellent ozone resistance. EU and China RoHS compliant. Applications: Automotive-Boots and Bellows for Steering and Suspension, Plugs, Bumpers, Grommets and Clips Uses: Appliance Components Automotive Applications Automotive Under the Hood Consumer Applications Diaphrams Electrical Parts Living Hinges Tubing 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; UL QMFZ2; UL QMFZ8
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Physical Properties	Original Value	Comments

Specific Gravity	0.950 g/cc	ASTM D792

Mechanical Properties	Original Value	Comments
Hardness, Shore D	45	Air at 302°F, 168 hr; ASTM D573
	41 @Thickness 2.00 mm, Time 15.0 sec	ISO 868
Tensile Strength at Break	2970 psi	Air at 302°F, 168 hr; ASTM D573
	3000 psi	Across Flow; ASTM D412
Tensile Stress at Strain	1310 psi @Strain 100 %	Across Flow; ASTM D412
Elongation at Break	518.5 %	Air at 302°F, 168 hr; ASTM D573
	610 %	Across Flow; ASTM D412
Tear Strength	383 pli	73°F, Die C; ASTM D624
Compression Set	54 % @Temperature 70.0 °C, Time 79200 sec	ASTM D395
	61 % @Temperature 125 °C, Time 252000 sec	ASTM D395

Electrical Properties	Original Value	Comments
Dielectric Constant	2.3	1.98 mm; ASTM D150
Dielectric Strength	700 V/mil	2.03 mm; ASTM D149

Thermal Properties	Original Value	Comments
Brittleness Temperature	-58.0 °F	ASTM D746
UL RTI, Electrical	85.0 °C	UL 746
UL RTI, Mechanical with Impact	85.0 °C	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	380 °F
Middle Barrel Temperature	390 °F
Front Barrel Temperature	400 °F
Nozzle Temperature	410 - 460 °F
Die Temperature	420 °F	Extrusion
Melt Temperature	410 °F	Extrusion
	420 - 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	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

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