Hytrel® HTR8730 BK320

About
63 Shore D High Viscosity Polyester Elastomer with Excellent Mechanical Properties at Elevated Temperatures Developed for Blow Molding&&

Product Description
SupplierDuPont
GenericTPC-ET
Material StatusCommercial: Active
FeaturesHigh Viscosity,Heat Stabilized,HB
AvailabilitysAfrica & Middle East ,North America,Latin America,Asia Pacific,Europe

Technical Data
MECHANICALNominal valueUnitTest method
Shore hardness
Shore D, 15 seconds58 ISO 868
Tensile modulus270MPaISO 527-2
tensile strength ISO 527-2
fracture41.0MPaISO 527-2
5% strain10.0MPaISO 527-2
10% strain15.0MPaISO 527-2
50% strain22.0MPaISO 527-2
100% strain24.0MPaISO 527-2
Tensile strain
fracture> 300%ISO 527-2
Nominal tensile fracture strain450%ISO 527-2
Bending modulus290MPaISO 178

elastic bodyNominal valueUnitTest method
tear strength ISO 34-1
TD150kN/mISO 34-1
MD180kN/mISO 34-1

IMPACTNominal valueUnitTest method
Charpy Notched Impact Strength ISO 179/1eA
-40℃10kJ/m²ISO 179/1eA
-30℃14kJ/m²ISO 179/1eA
23℃No Break ISO 179/1eA
Charpy Unnotch Impact strength
23℃No Break ISO 179/1eU

THERMALNominal valueUnitTest method
Melting temperature212ISO 11357-3

FLAME CHARACTERISTICSNominal valueUnitTest method
Burning rate
1 mm< 100mm/minISO 3795
Flammability level
1.5 mmHB IEC 60695-11-10, -20
FMVSS flame retardant ratingB FMVSS 302

PHYSICALNominal valueUnitTest method
Density1.20g/cm³ISO 1183
Melt Flow Rate
230℃,10.0kg5.0g/10minISO 1133
Melt Volume Rate
230℃,10 kg5.00cm³/10minISO 1133
Shrinkage rate ISO 294-4
TD2.1%ISO 294-4
MD1.9%ISO 294-4
Water absorption rate
Saturation, 23 ℃, 2.00 mm0.50%ISO 62
Equilibrium, 23 ℃, 50% RH, 2.00 mm0.20%ISO 62
23℃,24hr0.30%ISO 62
Melt density1.03g/cm³

Process Conditions
injectionNominal valueUnitTest method
Drying temperature110°C
Drying time – hot air dryer3.0 to 4.0hr
Recommended maximum moisture content0.080%
Processing (melt) temperature230 to 250°C
Melt Temperature, Optimum240°C
Mold temperature45 to 55°C
Mold Temperature, Optimum45°C
Drying Recommendedyes 

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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