How Calumite Slag is Used

Calumite Slag is used in all types of soda-lime-silica glass production. Calumite Slag usage depends on factors such as glass color, glass composition, and local raw materials. The level of Calumite Slag is expressed as a percentage of the dry sand weight. In flint container glass, Calumite Slag is typically 6-7% of the dry sand weight. In green container glass, it is 10-13%, while in amber glass, up to 18% of the dry sand weight is used.

In float glass, Calumite Slag is typically used at 4-8% of the dry sand weight. Use of the redox number concept, pioneered by previous employees of Calumite Company, LLC, and now accepted by glassmakers worldwide, ensures the optimum level of Calumite slag is utilized to improve redox control in the furnace and final glass composition.

Maximizing the Benefits of using Calumite Slag

Many of the benefits of using Calumite Slag , including improved melting efficiency, reduced process CO₂ emissions and improved color stabilization are always achieved when Calumite Slag is used. Other benefits can be maximized depending on the specific priorities of the glassmaker at the time, for example reducing energy consumption or improving glass quality.

Calumite Slag Availability and Delivery

Calumite Company, LLC ships its products throughout the United States and has sufficient quantities to meet any customer requirements.