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 |