DuPont Hytrel? TPE 8238 TPC-ET
Subcategory: Elastomer, TPE; Polyester, TP; Polymer; Thermoplastic
Material Notes:
Hytrel? 8238 is the highest modulus grade, with nominal hardness of 82D. It contains non-discoloring stabilizer. It can be processed by many conventional thermoplastic processing techniques like injection molding and extrusion.
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| Physical Properties | Metric | English | Comments | |
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| Density | 1.28 g/cc | 0.0462 lb/in? | ISO 1183 | |
| Specific Gravity | 1.28 g/cc | 0.0462 lb/in? | ASTM D 792 | |
| Water Absorption | 0.3 % | 0.3 % | Immersion 24h; 23?C; ASTM D 570 | |
| Water Absorption | 0.3 % | 0.3 % | Immersion 24h; 23?C; ISO 62 | |
| Moisture Absorption at Equilibrium | 0.2 % | 0.2 % | 50%RH; 23?C; ISO 62 | |
| Water Absorption at Saturation | 0.6 % | 0.6 % | Immersed; 23?C; ISO 62 | |
| Linear Mold Shrinkage | 0.016 cm/cm | 0.016 in/in | Parallel 2.0mm; ISO 294-4 | |
| Linear Mold Shrinkage | 0.016 cm/cm | 0.016 in/in | Flow; ASTM D 955 | |
| Linear Mold Shrinkage, Transverse | 0.016 cm/cm | 0.016 in/in | 2.0mm; ISO 294-4 | |
| Melt Flow | 10 g/10 min | 10 g/10 min | 2.16 kg/240?C; based on room temperature density; ISO 1133 | |
| Melt Flow | 12.5 g/10 min | 12.5 g/10 min | 2.16kg at 240?C; ASTM D 1238 | |
| Melt Flow | 12.5 g/10 min | 12.5 g/10 min | 240?C, 2.16kg; ISO 1133 | |
Mechanical Properties |
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| Hardness, Shore D | 74 | 74 | 15s; ISO 868 | |
| Hardness, Shore D | 82 | 82 | Maximum; ASTM D 2240 | |
| Hardness, Shore D | 82 | 82 | Maximum; ISO 868 | |
| Tensile Strength at Break | 48.3 MPa | 7010 psi | ASTM D 638 | |
| Tensile Strength at Break | 50 MPa | 7250 psi | ISO 527 | |
| Tensile Strength, Yield | 27.6 MPa | 4000 psi | @ 5% Strain; 23?C; ASTM D 638 | |
| Tensile Strength, Yield | 30.3 MPa | 4390 psi | @ 10% Strain; 23?C; ASTM D 638 | |
| Tensile Strength, Yield | 33 MPa | 4790 psi | @ 10% Strain; 23?C; ISO 527 | |
| Tensile Strength, Yield | 36 MPa | 5220 psi | ISO 527 | |
| Elongation at Break | Min 300 % | Min 300 % | ISO 527 | |
| Elongation at Break | Min 50 % | Min 50 % | Nominal; ISO 527 | |
| Elongation at Break | 340 % | 340 % | Nominal; ISO 527 | |
| Elongation at Break | 350 % | 350 % | ASTM D 638 | |
| Elongation at Break | 400 % | 400 % | ISO 527 | |
| Elongation at Yield | 20 % | 20 % | ISO 527 | |
| Tensile Modulus | 1.18 GPa | 171 ksi | ISO 527 | |
| Flexural Modulus | 0.255 GPa | 37 ksi | 100?C; ASTM D 790 | |
| Flexural Modulus | 0.26 GPa | 37.7 ksi | 100?C; ISO 178 | |
| Flexural Modulus | 1.11 GPa | 161 ksi | ASTM D 790 | |
| Flexural Modulus | 1.116 GPa | 162 ksi | ISO 178 | |
| Flexural Modulus | 2.6 GPa | 377 ksi | -40?C; ISO 178 | |
| Flexural Modulus | 3.03 GPa | 439 ksi | -40?C; ASTM D 790 | |
| Izod Impact, Notched (ISO) | 11.2 kJ/m? | 5.33 ft-lb/in? | ISO 180/1A | |
| Izod Impact, Notched, Low Temp (ISO) | 5.5 kJ/m? | 2.62 ft-lb/in? | -40?C; ISO 180/1A | |
| Charpy Impact, Notched, Low Temp | 0.5 J/cm? | 2.38 ft-lb/in? | -30?C; ISO 179/1eA | |
| Charpy Impact, Notched, Low Temp | 0.6 J/cm? | 2.86 ft-lb/in? | -40?C; ISO 179/1eA | |
| Charpy Impact, Notched | 1.5 J/cm? | 7.14 ft-lb/in? | ISO 179/1eA | |
| Tensile Impact Strength | 57 kJ/m? | 27.1 ft-lb/in? | ISO 8256 | |
| Izod Impact, Notched | 0.3 J/cm | 0.562 ft-lb/in | -40?C; ASTM D 256 | |
| Izod Impact, Notched | 0.4 J/cm | 0.749 ft-lb/in | ASTM D 256 | |
Electrical Properties |
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| Volume Resistivity | Min 1e+013 ohm-cm | Min 1e+013 ohm-cm | IEC 60093 | |
| Volume Resistivity | 2e+014 ohm-cm | 2e+014 ohm-cm | IEC 60093 | |
| Surface Resistance | Min 1e+015 ohm | Min 1e+015 ohm | IEC 60093 | |
| Dielectric Constant | 3.7 | 3.7 | 1E6 Hz; IEC 60250 | |
| Dielectric Constant | 4 | 4 | 1E2 Hz; IEC 60250 | |
| Dielectric Strength | 21 kV/mm | 533 kV/in | IEC 60243-1 | |
| Dissipation Factor | 0.01 | 0.01 | 1E2 Hz; IEC 60250 | |
| Dissipation Factor | 0.0175 | 0.0175 | 1E6 Hz; IEC 60250 | |
| Comparative Tracking Index | Min 600 V | Min 600 V | IEC 60112 | |
| Comparative Tracking Index | Min 600 V | Min 600 V | 23?C; 3.0mm; UL 746A | |
Thermal Properties |
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| CTE, linear 20?C | 103 ?m/m-?C | 57.2 ?in/in-?F | -40 - 23?C (-40 - 73?F); Parallel; ASTM E 831 | |
| CTE, linear 20?C | 103 ?m/m-?C | 57.2 ?in/in-?F | -40 - 23?C (-40 - 73?F); Parallel; ISO 11359-1/-2 | |
| CTE, linear 20?C | 147 ?m/m-?C | 81.7 ?in/in-?F | 23 - 55?C (73 - 130?F); Parallel; ISO 11359-1/-2 | |
| CTE, linear 20?C | 149 ?m/m-?C | 82.8 ?in/in-?F | 23 - 55?C (73 - 130?F); Parallel; ASTM E 831 | |
| CTE, linear 20?C Transverse to Flow | 146 ?m/m-?C | 81.1 ?in/in-?F | 55 - 120?C (130 - 248?F); ASTM E 831 | |
| CTE, linear 20?C Transverse to Flow | 146 ?m/m-?C | 81.1 ?in/in-?F | 55 - 120?C (130 - 248?F); ISO 11359-1/-2 | |
| CTE, linear 20?C Transverse to Flow | 147 ?m/m-?C | 81.7 ?in/in-?F | 23 - 55?C (73 - 130?F); ASTM E 831 | |
| CTE, linear 20?C Transverse to Flow | 149 ?m/m-?C | 82.8 ?in/in-?F | 23 - 55?C (73 - 130?F); ISO 11359-1/-2 | |
| CTE, linear 20?C Transverse to Flow | 9 ?m/m-?C | 5 ?in/in-?F | -40 - 23?C (-40 - 73?F); ASTM E 831 | |
| CTE, linear 20?C Transverse to Flow | 9 ?m/m-?C | 5 ?in/in-?F | -40 - 23?C (-40 - 73?F); ISO 11359-1/-2 | |
| CTE, linear 100?C | 169 ?m/m-?C | 93.9 ?in/in-?F | 55 - 120?C (130 - 248?F); Parallel; ASTM E 831 | |
| CTE, linear 100?C | 169 ?m/m-?C | 93.9 ?in/in-?F | 55 - 120?C (130 - 248?F); Parallel; ISO 11359-1/-2 | |
| Melting Point | 221 ?C | 430 ?F | 10?C/min; ISO 11357-1/-3 | |
| Melting Point | 223 ?C | 433 ?F | ASTM D 3418 | |
| Deflection Temperature at 0.46 MPa (66 psi) | 105 ?C | 221 ?F | ISO 75-1/-2 | |
| Deflection Temperature at 0.46 MPa (66 psi) | 140 ?C | 284 ?F | ASTM D 648 | |
| Deflection Temperature at 1.8 MPa (264 psi) | 45 ?C | 113 ?F | ISO 75-1/-2 | |
| Deflection Temperature at 1.8 MPa (264 psi) | 55 ?C | 131 ?F | ASTM D 648 | |
| Brittleness Temperature | -84 ?C | -119 ?F | ISO 974 | |
| Glass Temperature | 50 ?C | 122 ?F | 10?C/min; ISO 11357-1/-2 | |
| UL RTI, Electrical | 50 ?C | 122 ?F | 0.91mm; UL 746B | |
| UL RTI, Electrical | 90 ?C | 194 ?F | 1.5mm; UL 746B | |
| UL RTI, Electrical | 90 ?C | 194 ?F | 3.0mm; UL 746B | |
| UL RTI, Mechanical with Impact | 50 ?C | 122 ?F | 0.91mm; UL 746B | |
| UL RTI, Mechanical with Impact | 85 ?C | 185 ?F | 3.0mm; UL 746B | |
| UL RTI, Mechanical with Impact | 85 ?C | 185 ?F | 1.5mm; UL 746B | |
| UL RTI, Mechanical without Impact | 50 ?C | 122 ?F | 0.91mm; UL 746B | |
| UL RTI, Mechanical without Impact | 85 ?C | 185 ?F | 1.5mm; UL 746B | |
| UL RTI, Mechanical without Impact | 85 ?C | 185 ?F | 3.0mm; UL 746B | |
| Flammability, UL94 | HB | HB | 3.0mm; IEC 60695-11-10 | |
| Flammability, UL94 | HB | HB | 3.0mm; UL94 | |
| Flammability, UL94 | HB | HB | 1.5mm; IEC 60695-11-10 | |
| Flammability, UL94 | HB | HB | 1.5mm; UL94 | |
| Flammability, UL94 | HB | HB | 0.91mm; IEC 60695-11-10 | |
| Flammability, UL94 | HB | HB | 0.91mm; UL94 | |
| Oxygen Index | 22 % | 22 % | ISO 4589-1/-2 | |
Processing Properties |
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| Melt Temperature | 240 ?C | 464 ?F | Optimum; Extrusion | |
| Melt Temperature | 250 ?C | 482 ?F | Optimum; Injection Molding | |
| Mold Temperature | 45 - 55 ?C | 113 - 131 ?F | Injection Molding | |
| Mold Temperature | 45 ?C | 113 ?F | Optimum; Injection Molding | |
| Drying Temperature | 110 ?C | 230 ?F | Extrusion | |
| Drying Temperature | 110 ?C | 230 ?F | Injection Molding | |
| Dry Time | 2 - 3 hour | 2 - 3 hour | Extrusion; Dehumidified Dryer | |
| Dry Time | 2 - 3 hour | 2 - 3 hour | Injection Molding; Dehumidified Dryer | |
| Moisture Content | Max 0.08 % | Max 0.08 % | Extrusion | |
| Moisture Content | Max 0.08 % | Max 0.08 % | Injection Molding | |
Descriptive Properties |
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| Additive | Antioxidant | |||
| Appearance | Beige, Light | |||
| Drying | Recommended | |||
| DuPont Product Category | General Purpose Resins | |||
| Extrudable | Cast Film | |||
| Extrudable | Coating | |||
| Extrudable | Filament | |||
| Extrudable | Hose | |||
| Extrudable | Sheet | |||
| Extrudable | Tubing | |||
| Extrudable | Wire and Cable | |||
| Features | Noise Dampening | |||
| Features | Hardness, High | |||
| Features | Food Contact Acceptable | |||
| Features | Chemical Resistance | |||
| Features | Creep Resistance, Good | |||
| Features | Energy Absorption, High | |||
| Form | Pellets | |||
| Heat Stabilized | Yes | |||
| Injection Moldable | Yes | |||
| Melt Castable | Yes | |||
| Part Marking Code | >TPC-ET< | ISO 11469 | ||
| Processing Method | Casting | |||
| Processing Method | Extrusion | |||
| Processing Method | Injection Molding | |||
| Region | Americas | |||
| Region | Asia/Pacific | |||
| Region | Europe | |||
| Resin Identification | TPC-ET | ISO 1043 | ||
| Ultrasonic Weldable | Yes | |||
| Uses | Industrial Applications | |||
| Uses | Hose | |||
| Uses | Automotive | |||
| Uses | Compounding | |||
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