ExxonMobil Santoprene® 241-55 Thermoplastic Elastomer

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ExxonMobil Santoprene® 241-55 Thermoplastic Elastomer
Categories:	Polymer; Thermoplastic; Elastomer, TPE; Thermoplastic Vulcanizate Elastomer (TPV)
Material Notes:	A soft, 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 or extrusion. It is polyolefin based and completely recyclable. Key Features: 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. Recommended for applications requiring excellent flex fatigue resistance. EU and China RoHS compliant. Applications: Plumbing – Potable Water Seals and Gaskets Tubing Uses: Plumbing Parts 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; NSF 51; NSF 61; RoHS Compliant; UL QMFZ2; UL QMFZ8
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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	59	2 mm, 15 sec; ISO 868
Tensile Strength at Break	754 psi	Across Flow; ASTM D412
Tensile Stress at Strain	305 psi @Strain 100 %	Across Flow; ISO 868
Elongation at Break	390 %	Across Flow; ASTM D412

Thermal Properties	Original Value	Comments
UL RTI, Electrical	100 °C	UL 746
UL RTI, Mechanical with Impact	90.0 °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	350 °F
Middle Barrel Temperature	360 °F
Front Barrel Temperature	360 °F
Nozzle Temperature	370 - 430 °F
Die Temperature	390 °F	Extrusion
Melt Temperature	385 °F	Extrusion
	380 - 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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