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Elmet Technologies

ExxonMobil Santoprene® 8271-65 Thermoplastic Elastomer
Categories: Polymer; Thermoplastic; Elastomer, TPE; Thermoplastic Vulcanizate Elastomer (TPV)

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 Grips
  • Industrial – Seals and Gaskets
  • Tubing
Uses:
  • Flexible Grips
  • Food Containers
  • Kitchenware
  • Living Hinges
  • Non-specific Food Applications
  • Seals
  • Tubing
  • White Goods and Small Appliances
Processing Method: Blow Molding, Extrusion Blow Molding, Injection Blow Molding, Injection Molding and Multi Injection Molding

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; FDA 21 CFR 177.1210; FDA 21 CFR 177.2600; NSF 51; UL QMFZ2; UL QMFZ8
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesMetricEnglishComments
Specific Gravity 0.950 g/cc0.950 g/ccASTM D792
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore A 69692 mm, 15 sec; ISO 868
 7272Air at 302°F, 168 hr; ASTM D573
Tensile Strength at Break 6.437 MPa933.6 psiAir at 302°F, 168 hr; ASTM D573
 6.50 MPa943 psiAcross Flow; ASTM D412
Tensile Stress at Strain 2.70 MPa
@Strain 100 %
392 psi
@Strain 100 %
Across Flow; ASTM D412
Elongation at Break 361.9 %361.9 %Air at 302°F, 168 hr; ASTM D573
 470 %470 %Across Flow; ASTM D412
Tear Strength 18.9 kN/m108 pli73°C, Die C; ASTM D624
Compression Set 32 %
@Temperature 70.0 °C,
Time 79200 sec
32 %
@Temperature 158 °F,
Time 22.0 hour
ASTM D395
 
Thermal PropertiesMetricEnglishComments
Brittleness Temperature -62.8 °C-81.0 °FASTM D746
UL RTI, Electrical 100 °C212 °FUL 746
UL RTI, Mechanical with Impact 85.0 °C185 °FUL 746
Flammability, UL94  HB
@Thickness 1.10 mm
HB
@Thickness 0.0433 in
 HB
@Thickness 3.00 mm
HB
@Thickness 0.118 in
 
Processing PropertiesMetricEnglishComments
Processing Temperature 175 - 230 °C347 - 446 °F
Rear Barrel Temperature 177 - 191 °C351 - 376 °F
Middle Barrel Temperature 179 - 193 °C354 - 379 °F
Front Barrel Temperature 185 - 199 °C365 - 390 °F
Nozzle Temperature 185 - 210 °C365 - 410 °F
Melt Temperature 143 - 216 °C289 - 421 °FProcessing
Mold Temperature 23.9 - 51.7 °C75.0 - 125 °F
Moisture Content 0.080 %0.080 %
Back Pressure 0.345 - 0.689 MPa50.0 - 100 psi
Clamp Pressure 41.4 - 68.9 MPa6000 - 10000 psi
Vent Depth 0.00254 cm0.00100 in
Cushion 0.317 - 0.635 cm0.125 - 0.250 in
Screw Speed 100 - 200 rpm100 - 200 rpm
 
Compliance PropertiesMetricEnglishComments
FDA YesYes
 
Descriptive Properties
ColorNatural Color
FormPellets
Injection RateFast
Maximum Regrind %20
Screw Compression Ratio2:1 - 2.5:1
Screw L/D Ratio16:1 - 20:1

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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