product
Eastar™ Copolyester GN078 has superior water clarity. It also has superior chemical resistance among the copolyester portfolio and is an excellent product for large tough bottles. Eastar™ Copolyester GN078 is an environmentally responsible material that contains no halogens or orthophthlate plasticizers. This product has been GREENGUARD INDOOR AIR QUALITY CERTIFIED®. The GREENGUARD INDOOR AIR QUALITY CERTIFIED® Mark is a registered certification mark used under license through the GREENGUARD Environmental Institute (GEI). GEI is an industry-independent, non-profit organization that oversees the GREENGUARD Certification Program. The GREENGUARD Certification Program is an industry independent, third-party testing program for low-emitting products and materials for indoor environments. For more information about GEI and to obtain printable certificates for Eastman™ Copolyesters, visit www.greenguard.org. Choose Eastman Chemical Company under the Manufacturer category and click search to display a list of our products.
EASTAR™ GN078
Eastar™ Copolyester GN078 has superior water clarity. It also has superior chemical resistance among the copolyester portfolio and is an excellent product for large tough bottles. Eastar™ Copolyester GN078 is an environmentally responsible material that contains no halogens or orthophthlate plasticizers. This product has been GREENGUARD INDOOR AIR QUALITY CERTIFIED®. The GREENGUARD INDOOR AIR QUALITY CERTIFIED® Mark is a registered certification mark used under license through the GREENGUARD Environmental Institute (GEI). GEI is an industry-independent, non-profit organization that oversees the GREENGUARD Certification Program. The GREENGUARD Certification Program is an industry independent, third-party testing program for low-emitting products and materials for indoor environments. For more information about GEI and to obtain printable certificates for Eastman™ Copolyesters, visit www.greenguard.org. Choose Eastman Chemical Company under the Manufacturer category and click search to display a list of our products.
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Identification & Functionality
Chemical Family
Polymer Name
Plastics & Elastomers Functions
Technologies
Product Families
Features & Benefits
Labeling Claims
Plastics Features
Applications & Uses
Plastics & Elastomers End Uses
Recommended Applications
- Closures-fragrance pkg
- Consumer housewares-NFC
- Fragrance packaging
- Home, garden & automotive packaging
- Jars-skin care pkg
- Non-medical housings & hardware for elec
- Personal care & cosmetics packaging
- Speciality containers-color cosmetics pk
- Walls
Properties
Physical Form
Mechanical Properties
| Value | Units | Test Method / Conditions | |
| Tensile Strength at Break | 48.3 | MPa | ASTM D 638 |
| Tensile Strength at Yield | 47.6 | MPa | ASTM D 638 |
| Elongation at Yield | 5 | % | ASTM D 638 |
| Elongation at Break | 300 | % | ASTM D 638 |
| Elongation at Yield | 5.0 | % | D 638 |
| Elongation at Break | 300.0 | % | D 638 |
| Tensile Modulus | 1862 | MPa | ASTM D 638 |
| Tensile Modulus | 1900 (2.7 x 105) | mPa (psi) | D 638 |
| Impact Resistance (Puncture), Energy at Max. Load at 0°C | 41 (30) | J (ft·lbf) | D 3763 |
| Flexural Strength | 64.8 | MPa | ASTM D 790 |
| Impact Resistance (Puncture), Energy at Max. Load at 23°C | 41 (30) | J (ft·lbf) | D 3763 |
| Flexural Strength | 65 (9400) | mPa (psi) | D 790 |
| Flexural Modulus | 1862 | MPa | ASTM D 790 |
| Flexural Modulus | 1900 (2.7 x 105) | mPa (psi) | D 790 |
| Impact Resistance (Puncture), Energy at Max. Load at -40°C | 39 (29) | J (ft·lbf) | D 3763 |
| Impact Strength, Unnotched at 23°C (73°F) | NB | - | D 4812 |
| Impact Strength, Unnotched at -40°C (-40°F) | NB | - | D 4812 |
| Izod Impact Strength, Notched at 23°C | NB | - | D 256 |
| Izod Impact Strength, Notched at -40°C | 63C (1.2C) | j/m (ft·lbf/in.) | D 256 |
| Rockwell Hardness, R Scale | 105.0 | - | D 785 |
| Tensile Stress at Break | 48 (7000) | mPa (psi) | D 638 |
| Tensile Stress at Yield | 47 (6900) | mPa (psi) | D 638 |
| Izod Impact notched (1/8 in) | N | J/m | ASTM D 256 |
| Izod Impact notched, Low-Temperature | 64.1 | J/m | ASTM D 256 |
| Rockwell Hardness | R105 | - | ASTM D 785 |
| Temperature | -40 | °C |
Physical Properties
| Value | Units | Test Method / Conditions | |
| Mold Shrinkage (MD) | 0.003 | mm/mm | ASTM D 955 |
| Density | 1250 | kg/m3 | ISO 1183 |
Thermal Properties
| Value | Units | Test Method / Conditions | |
| Deflection Temperature at 0.455 MPa (66 psi) | 73 (163) | °C (°F) | D 648 |
| Deflection Temperature Under Load (264 psi) | 62.8 | °C | ASTM D 648 |
| Deflection Temperature Under Load (66 psi) | 72.8 | °C | ASTM D 648 |
| Deflection Temperature at 1.82 MPa (264 psi) | 63 (145) | °C (°F) | D 648 |
| Vicat Softening Temperature | 85 (185) | °C (°F) | D 1525 |
| Vicat Temperature | 85 | °C | ASTM D 1525 |
Typical Properties
| Value | Units | Test Method / Conditions | |
| Density | 1.25 | g/cm3 | D 792 |
| Mold Shrinkage | 0.3 | % | D 955 |
Optical Properties
| Value | Units | Test Method / Conditions | |
| Haze | 1.3 | % | ASTM D 1003 |
| Gloss | 143 | - | ASTM D 2457 |
| Color | -0.2 | - | D 2244 |
| Color | 0.6 | - | D 2244 |
| Haze | 1.3 | % | D 1003 |
| Color L* | 95.0 | - | D 2244 |
| Light Transmittance | 91 | % | ASTM D 1003 |
| Gloss at 60° | 143.0 | - | D 2457 |
| Regular Transmittance | 87.0 | % | D 1003 |
| Total Transmittance | 91.0 | % | D 1003 |
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