Eastar? Copolyester GN007, Natural
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| Product Description |
| Eastar? GN007 Copolyester is a water-clear glycol modified polyethylene terephthalate (PET) with an added mold release. Eastar? GN007 copolyester will not crystallize and thus offers wider processing latitude than conventional crystallizable polyesters. This material offers an excellent combination of clarity, toughness, and melt strength that makes it useful for a variety of processing techniques and end-use applications. |
| General Properties |
| Specific Gravity | D 792 | 1.27 |
| Mold Shrinkage Parallel to Flow, 3.2-mm (0.125-in.) thickness | D 955 | 0.002-0.005 mm/mm (0.002-0.005 in./in.) |
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| Thermal Properties |
| Deflection Temperature |
| D 648 | 70°C (158°F) |
| D 648 | 62°C (143°F) |
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| Thermal Properties (*** Method) |
| Deflection Temperature |
| *** 75 | 70°C |
| *** 75 | 62°C |
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| Mechanical Properties |
| Tensile Stress @ Break | D 638 | 30 MPa (4300 psi) |
| Tensile Stress @ Yield | D 638 | 50 MPa (7200 psi) |
| Elongation @ Break | D 638 | 180% |
| Elongation @ Yield | D 638 | 4.4% |
| Tensile Modulus | D 638 | 2030 MPa (2.9 x 105 psi ) |
| Flexural Strength | D 790 | 68 MPa (9800 psi) |
| Flexural Modulus | D 790 | 2060 MPa (3.0 x 105 psi ) |
| Rockwell Hardness, R Scale | D 785 | 108 |
| Izod Impact Strength, Notched |
| D 256 | 105 J/m (1.9 ft·lbf/in.) |
| D 256 | 40 J/m (0.7 ft·lbf/in.) |
| Impact Strength, Unnotched |
| D 4812 | NB |
| D 4812 | NB |
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| Mechanical Properties (*** Method) |
| Tensile Strength @ Yield | *** 527 | 48 MPa |
| Tensile Strength @ Break | *** 527 | 29 MPa |
| Elongation @ Yield | *** 527 | 4% |
| Elongation @ Break | *** 527 | 200% |
| Tensile Modulus | *** 527 | 2000 MPa |
| Flexural Modulus | *** 178 | 2100 MPa |
| Flexural Strength | *** 178 | 67 MPa |
| Izod Impact Strength, Notched |
| *** 180 | 9.4 kJ/m2 |
| *** 180 | 4.4 kJ/m2 |
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| Optical Properties |
| Haze | D 1003 | 0.2% |
| Total Transmittance | D 1003 | 90% |
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| Typical Processing Conditions |
| Drying Temperature | | 71°C (160°F) |
| Drying Time | | 6 hrs |
| Processing Melt Temperature | | 249-271°C (480-520°F) |
| Mold Temperature | | 16-38°C (60-100°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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