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ExxonMobil Santoprene® 8271-75 Thermoplastic Elastomer

Category Polymer , Thermoplastic , Elastomer, TPE , Thermoplastic Vulcanizate Elastomer (TPV)
Manufacturer Exxon Chemical
Trade Name Santoprene®
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF ExxonMobil Santoprene® 8271-75 Thermoplastic Elastomer.pdf
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Material Notes:
A soft, colorable, specialty, non-hygroscopic thermoplastic vulcanizate (TPV) in the thermoplastic elastomer (TPE) family. It complies with FDA regulations for rubber articles intended for repeated use, as well as those in contact with non-fatty, non-oily foods as closures and sealing gaskets. This grade of Santoprene 8000 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: This product, in principle, can be used in food contact applications in the USA (FDA). Migration or use limitations may apply.Complies with NSF Standard 51: Food Equipment Materials - Plastics, materials and components used in food equipment.UL listed: file #QMFZ2.E80017, Plastics - Component; file #QMFZ8.E80017, Plastics Certified For Canada - Component.Recommended for applications requiring excellent flex fatigue resistance.Non-hygroscopic product; requires little to no drying before processing.Neutral, easy coloring formulation.EU and China RoHS compliant.Applications:Consumer – FDA Seals and Closures, Packaging, Small Appliance and Soft Touch GripsIndustrial – Seals and GasketsTubingUses:Flexible GripsFood ContainersKitchenwareLiving HingesNon-specific Food ApplicationsSealsTubingWhite Goods and Small AppliancesProcessing Method: Blow Molding, Extrusion Blow Molding, Injection Blow Molding, Injection Molding and Multi Injection MoldingAvailability: Africa & Middle East, Europe, North America, Asia Pacific, Latin America and South AmericaInformation provided by Advanced Elastomer Systems
Physical Properties Metric English Comments
Specific Gravity 0.940 g/cc
0.940 g/cc
23°C; ASTM D792
Mechanical Properties Metric English Comments
Hardness, Shore A 81
81
2 mm, 15 sec; ISO 868
Tensile Strength at Break 8.27 MPa
1200 psi
Across Flow; ASTM D412
Tensile Stress 3.90 MPa

@Strain 100 %
566 psi

@Strain 100 %
Across Flow; ASTM D412
Elongation at Break 480 %
480 %
Across Flow; ASTM D412
Tear Strength 25.9 kN/m
148 pli
73°C, Die C; ASTM D624
Compression Set 37 %
37 %
158°F, 22 hr; ASTM D395
75 %
75 %
257°F, 70 hr; ASTM D395
Thermal Properties Metric English Comments
Brittleness Temperature -60.0 °C
-76.0 °F
ASTM D746
UL RTI, Electrical 100 °C
212 °F
UL 746
UL RTI, Mechanical with Impact 85.0 °C
185 °F
UL 746
Flammability, UL94 HB

@Thickness 1.10 mm
HB

@Thickness 0.0433 in
HB

@Thickness 3.00 mm
HB

@Thickness 0.118 in
Processing Properties Metric English Comments
Processing Temperature 175 - 230 °C
347 - 446 °F
Rear Barrel Temperature 177 - 191 °C
351 - 376 °F
Middle Barrel Temperature 179 - 193 °C
354 - 379 °F
Front Barrel Temperature 185 - 199 °C
365 - 390 °F
Nozzle Temperature 185 - 210 °C
365 - 410 °F
Melt Temperature 143 - 216 °C
289 - 421 °F
Processing
Mold Temperature 10.0 - 51.7 °C
50.0 - 125 °F
Processing
Moisture Content 0.080 %
0.080 %
Back Pressure 0.345 - 0.689 MPa
50.0 - 100 psi
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 Value Comments
Change in Mass in IRM 903 Oil at 257°F for 70 hr -0.02
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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