Santoprene™ 121-80

About
A soft, black, UV resistant thermoplastic vulcanizate (TPV) in the thermoplastic elastomer (TPE) family. This material combines good physical properties and chemical resistance for use in a wide range of applications. This grade of Santoprene TPV is shear-dependent and can be processed on conventional thermoplastics equipment for injection molding, extrusion, blow molding, thermoforming or vacuum forming. It is polyolefin based and recyclable within the manufacturing stream.&&

Product Description
SupplierCelanese
Material StatusCommercial: Active
FeaturesRenewable resources,Fatigue resistance,Solvent resistance,Ozone resistance,Good Dimensional Stability,Weather resistance is good,HB
AvailabilitysNorth America,Asia Pacific,Latin America,Africa & Middle East ,Europe
Process MethodsExtrusion,Injection Molding,Thermo forming,Profile extrusion,Multiple injection molding

Technical Data
PHYSICALNominal valueUnitTest method
Density0.968g/cm³ASTM D792
Density0.970g/cm³ISO 1183
Weathering resistancef1 UL 746C
Detergent Resistancef4 UL 2157
Detergent Resistancef3 UL 749

elastic bodyNominal valueUnitTest method
tensile strength
TD, fracture, 23 ℃11.0MPaISO 37
TD, fracture, 23 ℃11.0MPaASTM D412
TD, 100% strain, 23 ℃4.60MPaASTM D412
TD, 100% strain, 23 ℃4.60MPaISO 37
Tensile strain
TD, fracture, 23 ℃560%ASTM D412
TD, fracture, 23 ℃560%ISO 37
tear strength
TD,23℃35.0kN/mASTM D624
TD,23℃35kN/mISO 34-1
Compression deformation ASTM D395B
23℃,22 hr25%ASTM D395B
125℃,70 hr52%ASTM D395B
Compression deformation ISO 815
23℃,22 hr25%ISO 815
125℃,70 hr52%ISO 815

MECHANICALNominal valueUnitTest method
Shore hardness
Shore A, 15 seconds, 23 ℃85 ISO 868

THERMALNominal valueUnitTest method
Embrittlement temperature-59.0ASTM D746
Embrittlement temperature-59.0ISO 812
Relative temperature index
Electrical performance90.0UL 746
Strength mechanical performance UL 746
1.0 mm90.0UL 746
1.5 mm90.0UL 746
3.0 mm95.0UL 746

Aging performanceNominal valueUnitTest method
The rate of change in tensile strength in air (135 ℃, 1008 hr)-3.0%ASTM D573
The rate of change in tensile strength in air (135 ℃, 1008 hr)-3.0%ISO 188
The rate of change in ultimate elongation in air
135℃,1008 hr-10%ASTM D573
Change in Tensile Strain at Break in Air(135℃,1008 hr)-10%ISO 188
Change in Durometer Hardness in Air (135 ℃, 1008 hr)7.0 ASTM D573
The rate of change of Shore hardness in air
Shaw A, 135 ℃, 1008 hr7.0 ISO 188
The rate of change in tensile strength
125℃,70 hr,in IRM 903 Oil-33%ASTM D471
Change in Tensile Stress(125℃,70 hr,in IRM 903 Oil)-33%ISO 1817
Change in Ultimate Elongation(125℃,70 hr,in IRM 903 Oil)-48%ASTM D471
Change in Tensile Strain at Break(125℃,70 hr,in IRM 903 Oil)-48%ISO 1817
Volume change
125 ℃, 70 hr, in IRM 903 oil67%ASTM D471
125 ℃, 70 hr, in IRM 903 oil67%ISO 1817
Durable to continuous maximum temperature
1008 hr135SAE J2236

Electrical performanceNominal valueUnitTest method
Dielectric strength
23 ℃,2 mm28kV/mmASTM D149
Dielectric constant
23 ℃,1.96 mm2.60 IEC 60250
23 ℃,1.96 mm2.60 ASTM D150
Compared to the leakage tracing indexPLC 0 UL 746
High Arc Burning Index (HAI)PLC 0 UL 746
High voltage arc ignition resistance index (HVAR) (PLC)PLC 6 UL 746
High voltage arc marking rate
HVTRPLC 1 UL 746
Hot wire ignition
HWI UL 746
1.0 mmPLC 4 UL 746
1.5 mmPLC 3 UL 746
3.0 mmPLC 2 UL 746

FLAME CHARACTERISTICSNominal valueUnitTest method
Flame retardant level UL 94
1.00 mmHB UL 94
1.50 mmHB UL 94
3.00 mmHB UL 94

Process Conditions
injectionNominal valueUnitTest method
ExtrusionNominal valueUnitTest method
Drying temperature82°C
Drying time3.0hr
Recommended maximum moisture content0.080%
Proposed maximum recycled material ratio20%
Barrel rear temperature177°C
Barrel middle temperature182°C
Barrel front temperature188°C
Nozzle temperature193 to 232°C
Processing (melt) temperature199 to 232°C
Mold temperature10 to 52°C
Injection speedFast 
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 to 20.0:1.0 
Screw compression ratio2.0:1.0 to 2.5:1.0 
Vent depth0.025mm
Drying temperature82°C
Drying time3.0hr
Melt temperature202°C
Nozzle temperature204°C
Back pressure5.00 to 20.0MPa

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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