ExxonMobil Santoprene® 243-50 Thermoplastic Elastomer

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ExxonMobil Santoprene® 243-50 Thermoplastic Elastomer (discontinued **)
Categories:	Polymer; Thermoplastic; Elastomer, TPE; Thermoplastic Vulcanizate Elastomer (TPV)
Material Notes:	A hard, 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 NSF 51 for food processing equipment. 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. Complies with NSF Standard 51: Listed Plastic Materials and Components used in Food Equipment. Complies with NSF Standard 61: Piping System Components for Drinking Water. Recommended for applications requiring excellent flex fatigue resistance. Information provided by Advanced Elastomer Systems
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	0.940 g/cc	0.940 g/cc	ASTM D792

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	52	52	.12 in; ASTM D2240
Tensile Strength, Yield	13.4 MPa	1940 psi	ASTM D638
Elongation at Yield	30 %	30 %	ASTM D638

Processing Properties	Metric	English	Comments
Processing Temperature	175 - 230 °C	347 - 446 °F
Rear Barrel Temperature	193 °C	380 °F
Middle Barrel Temperature	199 °C	390 °F
Front Barrel Temperature	204 °C	400 °F
Nozzle Temperature	210 - 241 °C	410 - 465 °F
Die Temperature	216 °C	420 °F	Extrusion
Melt Temperature	210 °C	410 °F	Extrusion
	216 - 232 °C	420 - 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
Change in Mass in IRM 903 Oil at 257°F for 70 hr	64
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

**
Materials flagged as discontinued () are no longer part of the manufacturer’s standard product line according to our latest information. These materials may be available by special order, in distribution inventory, or reinstated as an active product. Data sheets from materials that are no longer available remain in MatWeb to assist users in finding replacement materials.

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