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ExxonMobil Santoprene® 8281-35MED Thermoplastic Elastomer

Category Polymer , Thermoplastic , Elastomer, TPE , Thermoplastic Vulcanizate Elastomer (TPV)
Manufacturer Exxon Chemical
Trade Name Santoprene®
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF ExxonMobil Santoprene® 8281-35MED Thermoplastic Elastomer.pdf
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Material Notes:
A soft, colorable, specialty, non-hygroscopic thermoplastic vulcanizate (TPV) in the thermoplastic elastomer (TPE) family. USP Class VI Certificates of Compliance exist for representative samples of our medical grades. Prior to release, each medical grade lot undergoes a Cytotoxicity study using the ISO elution method and a Physico-Chemical - Elastomeric Closures test for heavy metals such as lead. This grade of Santoprene 8000 TPV is shear-dependent and can be processed on conventional thermoplastics equipment for injection molding or extrusion. It is polyolefin based and completely recyclable.Key Features: This grade meets the USP (U.S. Pharmacopeia) Class VI requirements for plastics.Additionally some ISO 10993 tests have been conducted.Each medical grade undergoes annual testing for cytotoxicity and heavy metals.Drug master file maintained with the FDA.EU and China RoHS compliantApplications:Medical – Soft Touch Grips, USP Class VI Seals and GasketsUses:Medical/Healthcare ApplicationsProcessing Method: Injection Molding and Multi Injection MoldingAvailability: Africa & Middle East, Europe, North America, Asia Pacific, Latin America and South AmericaInformation provided by ExxonMobil Chemical
Physical Properties Metric English Comments
Specific Gravity 0.910 g/cc
0.910 g/cc
23°C; ASTM D792
Maximum Moisture Content 0.080
0.080
Mechanical Properties Metric English Comments
Hardness, Shore A 38
38
2 mm, 15 sec; ISO 868
Tensile Strength at Break 2.60 MPa
377 psi
Across Flow; ASTM D412
Tensile Stress 0.903 MPa

@Strain 100 %
131 psi

@Strain 100 %
Across Flow; ASTM D412
Elongation at Break 360 %
360 %
Across Flow; ASTM D412
Tear Strength 4.00 kN/m
22.8 pli
212°F, Die C; ASTM D624
9.01 kN/m
51.4 pli
73°C, Die C; ASTM D624
Compression Set 13 %
13 %
73°F, 168 hr; ASTM D395
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 23.9 - 51.7 °C
75.0 - 125 °F
Back Pressure 0.345 - 0.689 MPa
50.0 - 99.9 psi
Clamp Pressure 41.0 - 69.0 MPa
5950 - 10000 psi
Vent Depth 0.00254 cm
0.00100 in
Screw Speed 100 - 200 rpm
100 - 200 rpm
Descriptive Properties Value Comments
Color Natural Color
Form Pellets
Injection Rate Fast
Screw Compression Ratio 2:1 - 2.5:1
Screw L/D Ratio 16:1 - 20:1
Suggested Max Regrind 20%
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