ExxonMobil Santoprene® 8281-55MED Thermoplastic Elastomer

Manufacturer Exxon Chemical
Trade Name Santoprene®
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union

Description

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: Based on a series of biocompatibility tests conducted on representative grades, this grade should meet 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 compliant.Applications: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 0.920 g/cc

0.920 g/cc

23°C; ASTM D792
Maximum Moisture Content 0.080

0.080

 

Mechanical Properties Metric English Comments
Hardness, Shore A 59

59

2 mm, 15 sec; ISO 868
Tensile Strength at Break 4.60 MPa

667 psi

Across Flow; ASTM D412
Tensile Stress 1.60 MPa

@Strain 100 %
232 psi

@Strain 100 %
Across Flow; ASTM D412
Elongation at Break 430 %

430 %

Across Flow; ASTM D412
Tear Strength 5.01 kN/m

28.6 pli

212°F, Die C; ASTM D624
14.0 kN/m

79.9 pli

73°C, Die C; ASTM D624
Compression Set 14 %

14 %

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

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

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

Max Regrind 20%

Screw Compression Ratio 2:1 – 2.5:1

Screw L/D Ratio 16:1 – 20:1