High silica glass fiber cloth is made by silica fiberglass fabric which is a kind of inorganic fiber containing more than 96% SiO2. It is high temperature resistance. Its softening point approaches 1700°C and can be used at 1000°C for a long time. It can work short-term at 1500°C. 
For types, there are high silica woven fabric (fabrication grade) and acid leached E glass fabric silica fabric (welding grade). The high silica cloth can be further finished with silicone, PU, vermiculite, aluminum foil. 

Besides 96% SiO2 silica fabric, InsoFire also offers 70% middle temperature silica fabric for 800℃ with excellent strength and stability. Compared with ceramic fabric, silica cloth is light weight and no shots exposure high temperature, much more clean and healthy to handle. It is widely used for applications which both thermal protection and heat resistance are required.