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ExxonMobil Santoprene® 273-40 Thermoplastic Elastomer
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 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 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.
  • EU and China RoHS compliant.
Applications:
  • Consumer – FDA Seals and Closures, Packaging, Small Appliance and Soft Touch Grips
Uses:
  • Filters
  • Flexible Grips
  • Food Containers
  • Gaskets
  • Kitchenware
  • Living Hinges
  • Non-specific Food Applications
  • Seals
  • Tubing
  • White Goods & Small Appliances
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; FDA 21 CFR 177.1210; FDA 21 CFR 177.2600; NSF 51; RoHS Compliant; 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 PropertiesOriginal ValueComments
Specific Gravity 0.950 g/ccASTM D792
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore D 45Air at 302°F, 168 hr; ASTM D573
 41
@Thickness 2.00 mm
ISO 868
Tensile Strength at Break 2865.8 psiAir at 302°F, 168 hr; ASTM D573
 3220 psiAcross 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 377 pli73°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
 
Thermal PropertiesOriginal ValueComments
Brittleness Temperature -58.0 °FASTM D746
 
Processing PropertiesOriginal ValueComments
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 °FExtrusion
Melt Temperature 410 °FExtrusion
 420 - 450 °F
Mold Temperature 50.0 - 125 °FProcessing
Drying Temperature 180 °F
Dry Time 3 hour
Moisture Content 0.080 %
Back Pressure 50.0 - 100 psiProcessing
 725 - 2900 psiExtrusion
Clamp Pressure 6000 - 10000 psi
Vent Depth 0.00100 in
Cushion 0.125 - 0.250 in
Screw Speed 100 - 200 rpm
 
Compliance PropertiesOriginal ValueComments
FDA Yes
 
Descriptive Properties
ColorNatural Color
FormPellets
Injection RateFast
Maximum Regrind %20
Screw Compression Ratio2:1 - 2.5:1
Screw L/D Ratio16:1 - 20:1

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PADVA133 / 22823

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