1. Types of refractory materials for high-temperature kilns 1. Siliceous refractory material Siliceous refractory material is a refractory material with SiO2 as the main component. It has extremely high fire resistance and high temperature stability. Silica refractory materials have excellent thermal shock resistance, wear resistance and chemical stability, so they are widely used in thermal insulation layers, linings and load-bearing structures in high-temperature kilns.