Borosilicate glass have very low coefficient of thermal expansion, making them more resistant to thermal shock. It is suitable for use in glass production that requires end product to be highly resistant to chemicals and thermal fluctuation.
Composition
Borosilicate Cullet
| Item | Content |
| SiO2 | 71.84% |
| Al2O3 | 3.44% |
| Na2O | 5.98% |
| K2O | 0.81% |
| MgO | 0.07% |
| CaO | N.D. |
| TiO2 | 0.02% |
| Fe2O3 | 0.05% |
| ZnO | 3.36% |
| B2O3 | 14.00% |
| Li2O | 0.33% |
| Sb2O3 | 0.10% |
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