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COMSOL CD

Advanced Elastomer Systems Santoprene® 201-73 Thermoplastic Rubber

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Subcategory: Elastomer, TPE; Polymer; Thermoplastic

Material Notes:
A colorable thermoplastic general purpose elastomer with good fluid resistance, formulated to replace thermoset elastomers such as EPDM, polychloroprene, and chlorosulfonated polyethylene. It can be processed using injection molding, extrusion, blow molding or other melt processing techniques.

Key Features: Dielectric constant 2.3, dielectric strength at 3.17 mm (125 mil), 19.6 kV/mm (500 v/mil); UL Yellow Card listed, UL 94 HB flame rating; Continuous temperature rating 1000 hrs. @ 135°C (275°F); Excellent flex fatigue resistance; Excellent ozone resistance

Additional processing comments: This thermoplastic rubber is a shear-dependent material that can be processed on conventional thermoplastic equipment for injection molding, extrusion, or blow molding. For extrusion, a general purpose screw with a compression ratio of 2.5 to 3.0 is recommended. 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.

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Physical PropertiesOriginal ValueComments
Density0.97 g/cc TPE-0105 (ASTM D792)

Mechanical Properties
Hardness, Shore A73 5 Second; TPE-0169 (ASTM D 2240)
Tensile Strength, Ultimate8.5 MPa TPE-0153 (ASTM D 412)
Elongation at Break460 % TPE-0153 (ASTM D 412)
100% Modulus0.0036 GPa TPE-0153 (ASTM D 412)
Tear Strength28 kN/m 28 kN/m at 23°C. Value at 100°C is 13 kN/m. TPE-0056 (ASTM D 624)
Compression Set24 % 23°C, 168 hrs.; TPE-0016 (ASTM D 412)
Compression Set, Elevated Temperature38 % 100°C, 168 hrs.; TPE-0016 (ASTM D 412)
Tensile Set14 % 23°C, 168 hrs.; TPE-0053 (ASTM D 412)

Electrical Properties
Dielectric Constant2.3 Frequency not specified
Dielectric Strength19.6 kV/mm at 3.17 mm (0.125 in)

Thermal Properties
Maximum Service Temperature, Air135 °C Continuous temperature Rating, 1000 hours
Brittleness TemperatureMax -60 °C TPE-0089 (ASTM D 746)
Flammability, UL94HB 

Processing Properties
Processing Temperature177 - 232 °C 
Drying Temperature82 °C Desiccant drying for 3 hours recommended
Dry Time3 hour 
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