Eastar? Copolyester EN058, Natural
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| Product Description |
| Eastar? EN058 Copolyester is a copolymer PET. It is crystallized. |
| Propertya | Testb
Method | Typical Value, Unitsc |
| |
| General Properties |
| Specific Gravity | D 792 | 1.33 |
| Mold Shrinkage | D 955 | 0.002 mm/mm (0.002 in./in.) |
| Water Absorption, 24 h immersion | D 570 | 0.19% |
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| Mechanical Properties |
| Tensile Stress @ Yield | D 638 | 58 MPa (8400 psi) |
| Tensile Stress @ Break | D 638 | 24 MPa (3500 psi) |
| Elongation @ Yield | D 638 | 4% |
| Elongation @ Break | D 638 | 90% |
| Flexural Yield Strength | D 790 | 78 MPa (11300 psi) |
| Flexural Modulus | D 790 | 2400 MPa (3.5 x 105 psi ) |
| Rockwell Hardness, R Scale | D 785 | 111 |
| Izod Impact Strength, Notched |
| D 256 | 56 J/m (1.0 ft·lbf/in.) |
| D 256 | 33 J/m (0.6 ft·lbf/in.) |
| Impact Strength, Unnotched |
| D 4812 | NB |
| D 4812 | 2446 J/m (46 ft·lbf/in.) |
| Impact Resistance (Puncture), Energy @ Max. Load |
| D 3763 | 32 J (24 ft·lbf) |
| D 3763 | 38 J (28 ft·lbf) |
| |
| Thermal Properties |
| Deflection Temperature |
| D 648 | 69°C (156°F) |
| D 648 | 63°C (145°F) |
| Vicat Softening Temperature @ 1 kg load | D 1525 | 80°C (176°F) |
| |
| Optical Properties |
| Haze | D 1003 | <1%<> |
| Total Transmittance | D 1003 | 82% |
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| Typical Processing Conditions |
| Drying Temperature | | 160°C (320°F) |
| Drying Time | | 4-6 hrs |
| Processing Melt Temperature | | 277-293°C (530-560°F) |
| Mold Temperature | | 16-32°C (60-90°F) |
a Unless noted otherwise, all tests are run at 23°C (73°F) and 50% relative humidity.
b Unless noted otherwise, the test method is ASTM.
c Units are in SI or US customary units. |
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