Advanced Elastomer Systems Santoprene® 243-40 Thermoplastic Rubber

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Subcategory: Elastomer, TPE; Polymer; Thermoplastic

Material Notes:
A colorable thermoplastic specialty elastomer which complies with NSF regulations for use in food processing equipment and plumbing applications in contact with potable water. It can be processed using injection molding, extrusion, blow molding or other melt processing techniques.

Key Features: Complies with NSF Standard 51: Listed Plastic Materials and Components used in Food Equipment; Complies with NSF Standard 61: Piping System Components for Drinking Water; Continuous temperature rating 1000 hrs. @ 135°C (275°F); Excellent flex fatigue 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 Properties	Original Value		Comments
Density	0.94 g/cc		TPE-0105 (ASTM D792)
Mechanical Properties
Hardness, Shore D	40		5 Second; TPE-0169 (ASTM D 2240)
Tensile Strength, Ultimate	19 MPa		TPE-0153 (ASTM D 412)
Elongation at Break	600 %		TPE-0153 (ASTM D 412)
100% Modulus	0.0092 GPa		TPE-0153 (ASTM D 412)
Tear Strength	65 kN/m		65 kN/m at 23°C. Value at 130°C is 36 kN/m. TPE-0056 (ASTM D 624)
Compression Set	32 %		23°C, 168 hrs.; TPE-0016 (ASTM D 412)
Compression Set, Elevated Temperature	49 %		100°C, 168 hrs.; TPE-0016 (ASTM D 412)
Tensile Set	48 %		23°C, 168 hrs.; TPE-0053 (ASTM D 412)
Thermal Properties
Maximum Service Temperature, Air	135 °C		Continuous temperature Rating, 1000 hours
Brittleness Temperature	Max -57 °C		TPE-0089 (ASTM D 746)
Processing Properties
Processing Temperature	177 - 232 °C
Drying Temperature	82 °C		Desiccant drying for 3 hours recommended
Dry Time	3 hour
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