What it is
A high-calcium limestone formulated as a reliable flux input for standard glass melting operations — where consistent CaO delivery, melt fluidity control, and furnace thermal stability govern production efficiency and batch-to-batch reliability.
What it does
- Delivers consistent CaO flux input for controlled melt formation
- Enhances melt fluidity and reduces furnace thermal variation
- Stabilises batch chemistry across container and coloured glass grades
- Supports silica network conditioning for structural glass integrity
- Maintains predictable furnace operation across continuous production cycles
Where it’s typically used
Container glass, coloured glass, and insulation glass furnaces where reliable calcium flux, melt fluidity, and batch stability are the primary operational requirements.
Quality options
- CaO ≥ 50%
- Fe₂O₃ ≤ 0.10%
- MgO ≤ 3%
- SiO₂ ≤ 4%
Size
- 1 – 2 mm
- 1.5 – 2.5 mm
- Controlled fines
- Custom PSD available
Applications
- Calcium flux input for melt fluidity and furnace thermal control
- Batch composition stabilisation in container and coloured glass systems
- Silica network conditioning for consistent mechanical glass performance
- PSD-controlled feed for efficient, high-rate standard glass melting
FAQs
If you have questions about limestone products, specifications, or typical applications, the answers below address some of the most common topics. For anything more specific, our technical team is happy to help.
How does Base Pure support stable, high-volume glass melting operations?
CaO ≥ 50% with controlled fines ensures reliable calcium flux input — maintaining melt fluidity and thermal stability across diverse furnace types.
Why do container and coloured glass producers rely on Base Pure for batch consistency?
Its PSD-controlled sizing prevents segregation and feed irregularities, delivering predictable batch behaviour even in high-throughput, variable-colour production.
What makes Base Pure the cost-efficient backbone of standard glass operations?
Engineered for broad furnace compatibility — container, coloured, and insulation glass alike — Base Pure delivers process reliability without premium-grade cost overhead.













