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ExxonMobil Santoprene® 8221-70 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® 8221-70 Thermoplastic Elastomer.pdf
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Material Notes:
A soft, colorable, UV resistant thermoplastic vulcanizate (TPV) in the thermoplastic elastomer (TPE) family. This material combines good physical properties and chemical resistance for use in a wide range of applications. This grade of Santoprene TPV is shear-dependent and can be processed on conventional thermoplastics equipment for injection molding or blow molding. It is polyolefin based and completely recyclable.Key Features: UL listed: file #QMFZ2.E80017, Plastics - Component; file #QMFZ8.E80017, Plastics Certified For Canada - Component.Neutral, easy coloring formulation.Used in sealing applications.EU and China RoHS compliant.Applications: Industrial – Architecture and ConstructionUses: Construction ApplicationsExpansion JointGlazingOutdoor ApplicationsProcessing 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 AmericaInformation provided by ExxonMobil Chemical
Physical Properties Metric English Comments
Specific Gravity 0.950 g/cc
0.950 g/cc
23°C; ASTM D792
Mechanical Properties Metric English Comments
Hardness, Shore A 75
75
2 mm, 15 sec; ISO 868
Tensile Strength at Break 6.80 MPa
986 psi
Across Flow; ASTM D412
Tensile Stress 2.90 MPa

@Strain 100 %
421 psi

@Strain 100 %
Across Flow; ASTM D412
Elongation at Break 600 %
600 %
Across Flow; ASTM D412
Tear Strength 25.1 kN/m
143 pli
73°C, Die C; ASTM D624
Compression Set 38 %
38 %
158°F, 22 hr; ASTM D395
58 %
58 %
257°F, 70 hr; ASTM D395
Thermal Properties Metric English Comments
Brittleness Temperature -62.2 °C
-80.0 °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 1.60 mm
HB

@Thickness 0.0630 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 179 - 196 °C
355 - 385 °F
Middle Barrel Temperature 185 - 199 °C
365 - 390 °F
Front Barrel Temperature 191 - 204 °C
375 - 400 °F
Nozzle Temperature 191 - 210 °C
375 - 410 °F
Die Temperature 185 - 221 °C
365 - 430 °F
Extrusion
Melt Temperature 185 - 221 °C
365 - 430 °F
Extrusion
199 - 216 °C
390 - 420 °F
Processing
Mold Temperature 23.9 - 51.7 °C
75.0 - 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
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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