Soluble ceramic fiber, composed mainly of SiO2, MgO, and CaO, is an alkaline earth silicate fiber. Similar to aluminum silicate fiber, it undergoes calcination, crushing, and melting before being formed into soluble fiber blankets, modules, papers, boards, and vacuum-formed products. Soluble fiber products possess fire resistance, insulation, sound absorption, and energy-saving properties. They find applications in industries such as petroleum, ceramics, steel, chemicals, metallurgy, machinery, construction, automotive, shipbuilding, and high-speed rail. Due to its solubility in body fluids, it minimizes potential health risks, hence the term “soluble fiber.”