Technical Data Sheet
Drystar™ 0831 Copolyester
Applications
Jars-skin care pkg
Personal care & cosmetics packaging
Key Attributes
High clarity and transparency
High flow copolyester
Tough
Product Description
Drystar™ 0831 Copolyester is a high flow product and contains a mold release. Other outstanding features of Drystar™ 0831 are easily maintained such as excellent appearance and clarity, good physical properties, chemical resistance, and easy processing. Drystar™ 0831 is for sale only in Asia as a high-flow formulation.
Typical Properties
Property
a
Test Method
b
Typical Value, Units
c
General Properties
Specific Gravity
D 792
1.27
Mold Shrinkage
D 955
0.002-0.005 mm/mm (0.002-0.005 in./in.)
Mechanical Properties
Tensile Stress @ Yield
D 638
48 MPa (7000 psi)
Tensile Stress @ Break
D 638
24 MPa (3500 psi)
Elongation @ Yield
D 638
4 %
Elongation @ Break
D 638
75 %
Flexural Modulus
D 790
1900 MPa (2.76 x 10
5
psi)
Flexural Strength
D 790
66 MPa (9600 psi)
Rockwell Hardness, R Scale
D 785
107
Izod Impact Strength, Notched
@ 23°C (73°F)
D 256
84 J/m (1.5 ft·lbf/in.)
@ -40°C (-40°F)
D 256
46 J/m (0.8 ft·lbf/in.)
Impact Strength, Unnotched
@ 23°C (73°F)
D 4812
NB
@ -40°C (-40°F)
D 4812
NB
Impact Resistance (Puncture), Energy @ Max. Load
@ 23°C (73°F)
D 3763
35 J (26 ft·lbf)
@ -40°C (-40°F)
D 3763
44 J (32 ft·lbf)
Optical Properties
Haze
D 1003
0.4 %
Total Transmittance
D 1003
91 %
Thermal Properties
Deflection Temperature
@ 0.455 MPa (66 psi)
D 648
68 °C (154 °F)
@ 1.82 MPa (264 psi)
D 648
60 °C (140 °F)
Typical Processing Conditions
Drying Temperature
d
71 °C (160 °F)
Drying Time
d
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.
d
Drying is only recommended for products previously opened and exposed to humid conditions.
Comments
Properties reported here are based on limited testing. Eastman makes no representation that the material in any particular shipment will conform to the values given.
Eastman and its marketing affiliates shall not be responsible for the use of this information, or of any product, method, or apparatus mentioned, and you must make your own determination of its suitability and completeness for your own use, for the protection of the environment, and for the health and safety of your employees and purchasers of your products. No warranty is made of the merchantability of fitness of any product, and nothing herein waives any of the Seller's conditions of sale.
2/28/2018 11:35:39 AM