Calcium Carbonate for Cables Cables are manufactured from solid materials or stranded copper core. Previously fire resistant cable shell are made from PVC plastic, it is flammable, while fire, it creates smoke and waste large amounts of toxic gases, endanger human life. Using Calcium Carbonate is GREAT SOLUTION for this problem! - Calcium carbonate is non toxic, odorless and tasteless, it does not affect the environment. - The thermal decomposition temperature of calcium carbonate above 800 , and general plastic are flammable, and its ignition temperature of about 400 , so the initial combustion stage, the hope of calcium carbonate decomposition in carbon dioxide is not possible Shivish Microns LLP Calcium carbonate for cables is a cost effective filler, reducing product cost effectiveness