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Advanced Elastomer Systems Santoprene® 121-50 M100 Thermoplastic Rubber
Subcategory: Elastomer, TPE; Polymer; Thermoplastic
Material Notes:
A black thermoplastic high-flow elastomer for excellent injection molding performance with good fluid resistance, formulated to replace thermoset elastomers such as EPDM, polychloroprene, and high quality SEBS compounds. It is polyolefin-based and UV stable.
Key Features: Fast, easy injection molding, especially for complex part geometries; Good sealing performance; Excellent surface aspect; Excellent elastic recovery up to 100°C (212°F); Minimal part warpage; Can be injected at lower molding temperatures or at lower injection pressures
Additional processing comments: This thermoplastic rubber is a shear-dependent material that can be processed on conventional thermoplastic equipment for injection molding. Material can be recycled. SANTOPRENE rubber is incompatible with acetal and PVC.
Values below are for injection molded plaques, side gated, 82.6 mm x 117.5 mm x 3.0 mm. Tensile properties measured across flow. Data provided by Advanced Elastomer Systems.
| Physical Properties | Metric | English | Comments | |
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| Density | 0.91 g/cc | 0.0329 lb/in³ | TPE-0105 (ASTM D792) | |
Mechanical Properties | ||||
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| Hardness, Shore A | 50 | 50 | 5 Second; TPE-0169 (ASTM D 2240) | |
| Tensile Strength, Ultimate | 3.5 MPa | 508 psi | TPE-0153 (ASTM D 412) | |
| Elongation at Break | 340 % | 340 % | TPE-0153 (ASTM D 412) | |
| 100% Modulus | 0.0018 GPa | 0.261 ksi | TPE-0153 (ASTM D 412) | |
| Compression Set | 22 % | 22 % | 23°C, 168 hrs.; TPE-0016 (ASTM D 412) | |
| Compression Set, Elevated Temperature | 32 % | 32 % | 70°C for 168 hrs.; TPE-0016 (ASTM D 412) | |
| Compression Set, Elevated Temperature | 40 % | 40 % | 100°C, 168 hrs.; TPE-0016 (ASTM D 412) | |
| Tensile Set | 10 % | 10 % | 23°C, 168 hrs.; TPE-0053 (ASTM D 412) | |
Thermal Properties | ||||
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| Brittleness Temperature | Max -60 °C | Max -76 °F | TPE-0089 (ASTM D 746) | |
Processing Properties | ||||
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| Processing Temperature | 177 - 232 °C | 351 - 450 °F | ||
| Drying Temperature | 82 °C | 180 °F | Desiccant drying for 3 hours recommended | |
| Dry Time | 3 hour | 3 hour | ||
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