DuPont Hytrel?TPE 4068FG Thermoplastic Copolyester Elastomer (TPC-ET)
Subcategory: Elastomer, TPE; Polyester, TP; Polymer; Thermoplastic
Material Notes:
Hytrel? 4068FG is a high performance thermoplastic polyester elastomer with food compliance specificity.
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| Physical Properties | Metric | English | Comments | |
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| Density | 1.1 g/cc | 0.0397 lb/in? | ISO 1183 | |
| Moisture Absorption at Equilibrium | 0.3 % | 0.3 % | 50%RH; 23?C; ISO 62 | |
| Water Absorption at Saturation | 0.7 % | 0.7 % | Immersed; 23?C; ISO 62 | |
| Linear Mold Shrinkage | 0.009 cm/cm | 0.009 in/in | ||
| Melt Flow | 8.5 g/10 min | 8.5 g/10 min | 190?C, 2.16kg; ISO 1133 | |
| Melt Flow | 9 g/10 min | 9 g/10 min | 2.16 kg/220?C; based on room temperature density; ISO 1133 | |
Mechanical Properties |
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| Hardness, Shore D | 40 | 40 | Maximum; ASTM D 2240 | |
| Tensile Strength at Break | 22 MPa | 3190 psi | ISO 527 | |
| Tensile Strength, Yield | 3.5 MPa | 508 psi | @ 10% Strain; 23?C; ISO 527 | |
| Elongation at Break | Min 300 % | Min 300 % | ISO 527 | |
| Elongation at Break | 620 % | 620 % | ISO 527 | |
| Tensile Modulus | 0.03 GPa | 4.35 ksi | ISO 527 | |
| Flexural Modulus | 0.028 GPa | 4.06 ksi | 100?C; ISO 178 | |
| Flexural Modulus | 0.055 GPa | 7.98 ksi | ISO 178 | |
| Flexural Modulus | 0.172 GPa | 24.9 ksi | -40?C; ISO 178 | |
| Izod Impact, Notched (ISO) | NB | NB | ISO 180/1A | |
| Izod Impact, Notched, Low Temp (ISO) | NB | NB | -40?C; ISO 180/1A | |
| Charpy Impact Unnotched | NB | NB | ISO 179/1eU | |
| Charpy Impact, Notched, Low Temp | NB | NB | -30?C; ISO 179/1eA | |
| Charpy Impact, Unnotched Low Temp | NB | NB | -30?C; ISO 179/1eU | |
| Charpy Impact, Notched | NB | NB | ISO 179/1eA | |
| Tensile Impact Strength | 145 kJ/m? | 69 ft-lb/in? | ISO 8256 | |
Thermal Properties |
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| CTE, linear 20?C | 230 ?m/m-?C | 128 ?in/in-?F | 23 - 55?C (73 - 130?F); Parallel; ASTM E 831 | |
| CTE, linear 20?C | 230 ?m/m-?C | 128 ?in/in-?F | 23 - 55?C (73 - 130?F); Parallel; ISO 11359-1/-2 | |
| CTE, linear 20?C Transverse to Flow | 230 ?m/m-?C | 128 ?in/in-?F | 23 - 55?C (73 - 130?F); ASTM E 831 | |
| CTE, linear 20?C Transverse to Flow | 230 ?m/m-?C | 128 ?in/in-?F | 23 - 55?C (73 - 130?F); ISO 11359-1/-2 | |
Processing Properties |
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| Melt Temperature | 225 ?C | 437 ?F | Optimum; Injection Molding | |
| Mold Temperature | 30 - 40 ?C | 86 - 104 ?F | Injection Molding | |
| Mold Temperature | 40 ?C | 104 ?F | Optimum; Injection Molding | |
| Drying Temperature | 100 ?C | 212 ?F | Injection Molding | |
| Dry Time | 2 - 3 hour | 2 - 3 hour | Injection Molding; Dehumidified Dryer | |
| Moisture Content | Max 0.08 % | Max 0.08 % | Injection Molding | |
Descriptive Properties |
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| Appearance | Natural | |||
| Drying | Recommended | |||
| DuPont Product Category | High Performance Hytrel? Resins | |||
| Form | Pellets | |||
| Part Marking Code | >TPC-ET< | ISO 11469 | ||
| Processing Method | Extrusion | |||
| Processing Method | Injection Molding | |||
| Region | Europe | |||
| Resin Identification | TPC-ET | ISO 1043 | ||
| Uses | Food Applications, Non-specific | |||
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