Hytrel® 6646 NC010

About
66 Shore D High Performance Polyester Elastomer&&

Product Description
SupplierDuPont
GenericTPC-ET
Material StatusCommercial: Active
FeaturesHB
AvailabilitysAfrica & Middle East ,North America,Latin America,Asia Pacific,Europe
Process MethodsInjection Molding

Technical Data
MECHANICALNominal valueUnitTest method
Shore hardness ISO 868
Shaw’s D66 ISO 868
Shore D, 15 seconds60 ISO 868
Tensile modulus310MPaISO 527-2
tensile strength ISO 527-2
fracture35.0MPaISO 527-2
yield20.0MPaISO 527-2
10% strain16.0MPaISO 527-2
100% strain20.0MPaISO 527-2
Tensile strain
fracture> 300%ISO 527-2
yield29%ISO 527-2
Nominal tensile fracture strain380%ISO 527-2
Tensile Creep Modulus(1 hr)260MPaISO 899-1
Tensile creep modulus
1000 hr190MPaISO 899-1

IMPACTNominal valueUnitTest method
Charpy Notched Impact Strength ISO 179/1eA
-30℃13kJ/m²ISO 179/1eA
23 ℃, localized fracture110kJ/m²ISO 179/1eA
Charpy Unnotch Impact strength
23℃No Break ISO 179/1eU

THERMALNominal valueUnitTest method
Hot deformation temperature
1.8 MPa, unannealed45.0ISO 75-2/A
0.45 MPa, unannealed87.0ISO 75-2/B
Glass transition temperature0.00ISO 11357-2
Vicat Softening Temp
B50100ISO 306
Melting temperature211ISO 11357-3
Effective Thermal Diffusivity5.44E-8m²/s

FLAME CHARACTERISTICSNominal valueUnitTest method
Burning rate
1 mm< 100mm/minISO 3795
Flammability level IEC 60695-11-10, -20
Flame retardant grade (0.30 mm)HB IEC 60695-11-10, -20
1.5 mmHB IEC 60695-11-10, -20
Extreme oxygen index21%ISO 4589-2
FMVSS flame retardant ratingB FMVSS 302
Fogging(Gvalue,condensate)1.0E-4gISO 6452

Supplementary informationNominal valueUnitTest method
Odor2.50 VDA 270

PHYSICALNominal valueUnitTest method
Density1.23g/cm³ISO 1183
Melt Flow Rate
240℃,2.16kg13g/10minISO 1133
Shrinkage rate ISO 294-4
TD1.4%ISO 294-4
MD1.4%ISO 294-4
Water absorption rate
Saturation, 23 ℃, 2.00 mm0.60%ISO 62
Equilibrium, 23 ℃, 50% RH, 2.00 mm0.20%ISO 62
Melt density1.07g/cm³
Specific Heat Capacity of Melt2150J/kg/℃
Thermal Conductivity of Melt0.15W/m/K

Process Conditions
injectionNominal valueUnitTest method
ExtrusionNominal valueUnitTest method
Drying temperature110°C
Drying time – hot air dryer2.0 to 3.0hr
Recommended maximum moisture content0.080%
Processing (melt) temperature240 to 260°C
Melt Temperature, Optimum245°C
Mold temperature45 to 55°C
Mold Temperature, Optimum45°C
Hold pressure70.0MPa
Drying Recommendedyes 
Drying temperature90 to 110°C
Drying time2.0 to 3.0hr
Recommended maximum moisture content0.060%
Melt temperature225 to 245°C
Extrusion Melt Temperature, Optimum235°C

Notes
1. Typical properties: these are not to be construed as specifications.
2. Derived from Similar Grade
3. 10°C/min
4. FMVSS 302
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