What is Calumite? Calumite is a calcium-alumino-silicate based material that is 99% glassy in nature, which is produced from granulated blast furnace slag. Learn More Calumite as an Abrasive Calumite is a light in colour Calcium Silicate mineral. Applications include: Cleaning of ornate buildings, wood rejuvenation and masonry renovation. Learn More Benefits of Calumite The two key characteristics of Calumite that contribute to the range of benefits that it offers are its glassy nature and its redox value. Learn More Where we Supply Calumite is used around the world in all types of soda-lime-silica glass production, from float glass to fibre glass, and container glass. Learn More How Calumite Works Calumite acts in a similar way to cullet as it is a glassy material with the benefit of being a weak reducing agent which is evenly distributed in the batch. Learn More Latest News Calumite Ltd has become a member of Glass Futures, the Global Centre of Excellence for glass in research and development, innovation, and training. Learn More
