What kind of material is A-class fireproof material carbon silicon board?

Carbon silicon board, also known as CS carbon fiber silica fireproof insulation board (referred to as carbon silicon board or CS board), is an inorganic fireproof insulation board made of ordinary portland cement, high-quality mineral powder, carbon fiber, silicone, inorganic foaming agent and other additives through advanced production equipment and foaming process. It is a class A fireproof material, which can be directly used for the insulation layer of building external wall insulation system, roof insulation system, fire isolation zone of external wall insulation system, self-insulation cold and hot bridge treatment of building, etc.