Santoprene™ 8281-55MED

About
A soft, colorable, specialty, non-hygroscopic thermoplastic vulcanizate (TPV) in the thermoplastic elastomer (TPE) family. It is designed for use in medical and healthcare applications. This grade of Santoprene TPV is shear-dependent and can be processed on conventional thermoplastics equipment for injection molding. It is polyolefin based and recyclable within the manufacturing stream.&&

Product Description
SupplierCelanese
Material StatusCommercial: Active
FeaturesSolvent resistance,Low extract,Steam sterilized,High pressure heat resistance,Radiation disinfection,Good coloring,Renewable resources,Low or no water absorption,Biocompatible,Ozone resistance
AvailabilitysEurope,Asia Pacific,Africa & Middle East ,North America,Latin America
Process MethodsInjection Molding,Multiple injection molding

Technical Data
PHYSICALNominal valueUnitTest method
Density
0.918g/cm³ASTM D792
0.920g/cm³ISO 1183

MECHANICALNominal valueUnitTest method
Shore hardness
Shore A, 15 seconds, 23 ℃, 2.00 mm59ISO 868

elastic bodyNominal valueUnitTest method
tensile strength
TD, fracture, 23 ℃5.20MPaASTM D412, ISO 37
TD, 100% strain, 23 ℃2.00MPaASTM D412, ISO 37
Tensile strain
TD, fracture, 23 ℃430%ASTM D412,ISO 37
tear strength
TD,23℃14.0kN/mASTM D624
TD,100℃5.00kN/mASTM D624
TD,23℃14kN/mISO 34-1
TD,100℃5.0kN/mISO 34-1
Compression deformation
23℃,168 hr14%ASTM D395B
23℃,168 hr14%ISO 815

Process Conditions
injectionNominal valueUnitTest method
Recommended maximum moisture content0.080%
Proposed maximum recycled material ratio20%
Barrel rear temperature177 to 191°C
Barrel middle temperature179 to 193°C
Barrel front temperature185 to 199°C
Nozzle temperature185 to 210°C
Processing (melt) temperature143 to 216°C
Mold temperature23.9 to 51.7°C
Injection speed快速
Back pressure0.345 to 0.689MPa
Screw speed100 to 200rpm
Clamping force4.1 to 6.9kN/cm²
Cushion3.18 to 6.35mm
Screw length to diameter ratio16.0:1.0 至 20.0:1.0
Screw compression ratio2.0:1.0 至 2.5:1.0
Vent depth0.025mm

Notes
1. Typical properties: these are not to be construed as specifications.
2. Die C
3. Method Bb, Angle (Nicked)
4. Type 1
5. Type A
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