SPECTAR                             PETG                    Mfg by :  Eastman Chemical Company
	A transparent copolyester with very high impact resistance, SpectarŽ sheet is the brand name for extruded Polyethleneterephtalate Glycol (PETG) copolyester sheet. The Spectar sheet programme offers solutions to both indoor and outdoor (UVP-version) applications. In addition to the clear and the opal versions, a variety of colours and designs to suit a wide range of design requirements are available. Spectar sheet has good optical properties and brilliant surface. The spectar sheet range contains sheets that are easy to fabricate, to vacuum form, and show an exceptional low temperature performance. Important benefits of spectar sheet are its very good chemical resistance and very high impact properties. Spectar sheet meets all current food contact legislation and can be used in contact with food. The UV Grade is not intended for food contact and is therefore not covered by this warranty. Spectar sheet also combines the following excellent properties Easy to vacuum form, need no predrying Exceptional low temperature performance Low water absorption Easy to recycle Very high impact properties       Applications   Bus shelters (UV-version), poster glazing, machine guards, medical appliance package, displays, refrigerators and cold storeroom equipment, bicycle safety helmets, food containers, lenticular lenses / graphic arts, lighting controllers for hazardous areas.     Technical Data     Property Method Units Spectar sheet + Spectar UV sheet     General     Density D1505 g/cm3 1.27 Rockwell Hardness D-785 R scale 105     Optical     Light Transmission 5036 % 88 Refractive Index 53491  1.57 Haze D1003 % <1     Mechanical     Flexural Modulus  53452 MPa 2075 Flexural Strength 53452 MPa 70 Tensile Modulus 53455 MPa 2200 Tensile Strength 53455 MPa 50 Elongation 53455 % 54     Thermal     Vicat Temp. (B)  53460 °C 82 Heat Deflection Temp. (A/B) 53461 °C 72/68 Specific Heat Capacity D-2766 J/gK 1.1 Coefficient of linear thermal expansion 53752 K-1 x 10-5 6.8 Thermal conductivity 52612 W/mK 0.20 Degradation temperature  °C >280 Max. service temperature  °C 70 Sheet forming temp. range  °C 120-160     Impact Strengths     Izod (notched) ISO180 kJ/m2 11.5 Charpy (notched) 53453 kJ/m2 10 Charpy (unnotched) 53453 kJ/m2  NB     Electrical     Dielectric constant 100 HZ IEC 250  2.6 Volume Resistivity D257 .cm 1015 Surface Resistivity D257  1016 Dielectric strength D149 kV / mm 16 Dissipation Factor (50 HZ) IEC 250  0.01
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