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Rulon Bearings

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ExxonMobil Santoprene® 271-80 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 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.

Recommended for applications requiring excellent flex fatigue resistance. Recommended for applications requiring excellent ozone resistance.

Information provided by Advanced Elastomer Systems

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 0.960 g/ccASTM D792
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore A 80.12 in; ASTM D2240
Tensile Strength at Break 1207.5 psi257°F, 70 hr, in IRM 903 Oil; ASTM D471
 1529.5 psiAir at 302°F, 168 hr; ASTM D573
 1610 psiAcross Flow; ASTM D412
Tensile Strength, Ultimate 680 psiAcross Flow; ASTM D412
Elongation at Break 307.8 %257°F, 70 hr, in IRM 903 Oil; ASTM D471
 475.2 %Air at 302°F, 168 hr; ASTM D573
 540 %Across Flow; ASTM D412
Tear Strength 200 pli73°F, Die C; ASTM D624
Compression Set 41 %
@Temperature 70.0 °C,
Time 79200 sec
ASTM D395
 47 %
@Temperature 125 °C,
Time 252000 sec
ASTM D395
 
Thermal PropertiesOriginal ValueComments
Brittleness Temperature -76.0 °FASTM D746
 
Processing PropertiesOriginal ValueComments
Processing Temperature 175 - 230 °C
Rear Barrel Temperature 350 °F
Middle Barrel Temperature 360 °F
Front Barrel Temperature 360 °F
Nozzle Temperature 380 - 450 °F
Die Temperature 410 °FExtrusion
Melt Temperature 400 °FExtrusion
 390 - 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

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 go back to viewing the property data in MatWeb's normal format.

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