High silica chopped strands is cut and processed by high-silicon glass fiber yarn, known for its high temperature resistance, ablation resistance and corrosion resistance. It has gradually substitute for asbestos and ceramic fibers and becomes the main thermal insulation material. These chopped strands are composed primarily of silica and offer remarkable resistance to extreme temperatures, making them invaluable across various industries. High silica chopped strand can be directly used as insulation filling material, to produce high- silica needled felt and high-silica wet-laid felt and as a reinforcing material mixed with organic resin to make ablation resistant bodies, such as missile heat insulation cover etc.