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http://www.stemmerich.com
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PPG - Starphire
DESCRIPTION
| Starphire float glass is a crystal clear soda-lime glass product. Its high visible light transmission and brilliant edge are two characteristics unique to Starphire glass. This glass has a low iron composition with mechanical and physical properties similar to ordinary clear soda-lime glass. |
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SHEET SIZES
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Largest is about 48" x 65". |
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AVAILABLE THICKNESSES
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Thickness
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Tolerance
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| 3.3 mm | ± 0.127 mm |
| 6.0 mm | + 0 mm, - 0.43 mm |
| 10 mm | + 0.313 mm, - 0.985 mm |
| 12.7 mm | ± 0.79 mm |
PROPERTIES
| Refractive Index: | nd (λ = 588 nm) = 1.5183 |
| Transmission: | @ 300 nm 37.9% | 360-680 nm 90%+ | @ 1200 nm 86.1% |
| @ 330 nm 80.8% | @ 740 nm 89.1% |
@ 2100 nm 87.0%
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| Mechanical and Thermal: |
Density | 2.5 g/cm3 |
| Young's Modulus | 73.1 GPa | |
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Thermal Coefficient of Expansion (0-300°C) = 90.3 x 10-7
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| Chemical: |
Chemical solubility
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Total Solids
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0.167% | |
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Total Alkali
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0.050% | |
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Approximate Chemical Composition
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Silicone Dioxide
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73% | |
| Sodium Oxide | 15% | |
| Calcium Oxide | 10% | |
| Trace Elements | 2% | |
| Electrical: | Dielectric Constant | 5.7 |
| Surface Resistivity | 106 - 108 ohms/sq. |
APPLICATIONS
| Starphire Glass is used where high visible light transmission and a clean-looking edge are desired. |