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Schott GM31685 Dental Glass
| Category | Ceramic , Glass , Oxide , Silicon Oxide |
| Manufacturer | Schott North America |
| Trade Name | |
| Port | Shanghai port,China |
| Trade Terms | FOB, CFR, CIF |
| Payment Terms | L/C, T/T, Western Union |
| Download PDF | Schott GM31685 Dental Glass.pdf  |
| Price | EMAIL US sales@lookpolymers.com |
Material Notes:
Remarks: Low refractive index glass ceramicApplication: CompositeAdvantagesGreater variety of composition and refractive indiciesOutstanding transparencyBest radiopacitiesInformation Provided by SCHOTT North America, Inc.
| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Density | 2.60 g/cc | 0.0939 lb/in³ |
| Thermal Properties | Metric | English | Comments |
|---|---|---|---|
| CTE, linear | 1.00 µm/m-°C @Temperature -30.0 - 70.0 °C |
0.556 µin/in-°F @Temperature -22.0 - 158 °F |
|
| Transformation Temperature, Tg | 800 °C | 1470 °F | ISO 7884-8 |
| Optical Properties | Metric | English | Comments |
|---|---|---|---|
| Refractive Index | 1.53 | 1.53 | n<sub>d</sub> |
| Component Elements Properties | Metric | English | Comments |
|---|---|---|---|
| Al2O3 | 20 % | 20 % | |
| K2O | 1.0 % | 1.0 % | |
| MgO | 5.0 % | 5.0 % | |
| SiO2 | 60 % | 60 % | |
| ZrO2 | 5.0 % | 5.0 % |
| Descriptive Properties | Value | Comments |
|---|---|---|
| Hydrolytic Resistance | Class 1 | DIN ISO 719 |
| Li2O (%) | 5 | |
| Radiopacity (digital method) | 170 | ISO 4049 |
| Radiopacity as thickness of aluminium equal to 2-mm thick glass material | 1.5 (75%) | ISO 4049 |
| Ta2O5 (%) | 1 | |
| ZnO (%) | 1 |
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