Ceramic fibers are made of melted silicon oxide and aluminum in the spinning process. Therefore, white, twisted fibers with high temperature resistance, low thermal conductivity and good chemical resistance are obtained. They have excellent resistance to sudden temperature fluctuations. Since pure ceramic fiber is not allowed to be processed into textile products, organic fibers must be added to allow spinning. In these products the organic part is about 15% (burns on first heating and hence the inevitable loss of glow).
In addition, textile materials are reinforced with glass thread or chrome steel wire. The maximum temperature resistance of glass fiber products is approximately 550°C and wire products for chrome steel can be used up to approximately 1000°C. Considering the influence of medium and mechanical loads on the material. The thermal resistance of non-core products such as wool, mats or paper varies from 1260°C to 1430°C for aluminosilicate fibers or 1600°C for polycrystalline fibers (mullite and corundum). These products are resistant to water, oils, fats, liquid metals and most acids.
Special features of ceramic fiber fabrics are: resistance to continuous temperature stress up to 1600°C, very good thermal insulation properties, low weight, elasticity, resistance to thermal shock, very good electrical insulating properties.