Hytrel® 4068FG

About
40 Shore D High Performance Polyester Elastomer Developed for Food Contact Applications&&

Product Description
SupplierDuPont
GenericTPC-ET
Material StatusCommercial: Active
FeaturesFood contact compliance
AvailabilitysAfrica & Middle East ,North America,Latin America,Asia Pacific,Europe
Process MethodsExtrusion

Technical Data
PHYSICALNominal valueUnitTest method
Density1.11g/cm³ISO 1183
Melt Flow Rate
220℃,2.16kg8.5g/10minISO 1133
Melt Volume Rate
220℃,2.16 kg8.80cm³/10minISO 1133
Shrinkage rate ISO 294-4
TD0.80%ISO 294-4
MD0.80%ISO 294-4
Water absorption rate
Saturation, 23 ℃, 2.00 mm0.70%ISO 62
Equilibrium, 23 ℃, 50% RH, 2.00 mm0.30%ISO 62

MECHANICALNominal valueUnitTest method
Shore hardness ISO 868
Shaw’s D37 ISO 868
Shore D, 15 seconds33 ISO 868
Tensile modulus45.0MPaISO 527-2
tensile strength ISO 527-2
fracture29.0MPaISO 527-2
5% strain2.40MPaISO 527-2
10% strain3.50MPaISO 527-2
50% strain6.70MPaISO 527-2
Tensile strain
fracture> 300%ISO 527-2
Nominal tensile fracture strain800%ISO 527-2
Tensile Creep Modulus(1 hr)28.0MPaISO 899-1
Tensile creep modulus
1000 hr21.0MPaISO 899-1
Bending modulus47.0MPaISO 178
abrasion resistance180mm³ISO 4649

elastic bodyNominal valueUnitTest method
tear strength ISO 34-1
TD100kN/mISO 34-1
MD100kN/mISO 34-1

IMPACTNominal valueUnitTest method
Charpy Notched Impact Strength ISO 179/1eA
-30℃No Break ISO 179/1eA
23℃No Break ISO 179/1eA
Charpy Unnotch Impact strength ISO 179/1eU
-30℃No Break ISO 179/1eU
23℃No Break ISO 179/1eU
Impact strength of cantilever beam notch ISO 180/1A
-40℃No Break ISO 180/1A
-30℃No Break ISO 180/1A
23℃No Break ISO 180/1A
Tensile impact strength
23℃145kJ/m²ISO 8256/1

THERMALNominal valueUnitTest method
Glass transition temperature-55.0ISO 11357-2
Melting temperature193ISO 11357-3
Linear coefficient of thermal expansion
TD2.3E-41/℃ISO 11359-2
MD2.3E-41/℃ISO 11359-2
Effective Thermal Diffusivity5.44E-8m²/s

Electrical performanceNominal valueUnitTest method
Dielectric strength18kV/mmIEC 60243-1
Relative permittivity IEC 60250
100 Hz4.80 IEC 60250
1 MHz4.70 IEC 60250
Compared to the leakage tracing index600VIEC 60112

FLAME CHARACTERISTICSNominal valueUnitTest method
Burning rate
1 mm< 100mm/minISO 3795
FMVSS flame retardant ratingB FMVSS 302

Supplementary informationNominal valueUnitTest method
Emissions of organic compounds10.0µgC/gVDA 277
Odor4.00 VDA 270

Process Conditions
injectionNominal valueUnitTest method
ExtrusionNominal valueUnitTest method
Drying temperature100°C
Drying time – hot air dryer2.0 to 3.0hr
Recommended maximum moisture content0.080%
Processing (melt) temperature220 to 250°C
Melt Temperature, Optimum225°C
Mold temperature30 to 40°C
Mold Temperature, Optimum40°C
Drying Recommendedyes 
Drying temperature90 to 110°C
Drying time2.0 to 3.0hr
Recommended maximum moisture content0.060%
Melt temperature210 to 225°C
Extrusion Melt Temperature, Optimum215°C

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