High silica sewing thread is a specialized industrial product crafted from high-strength, high silica twisted yarn, which is treated with PTFE (polytetrafluoroethylene) dispersion to enhance its performance and durability. This thread is designed to retain its integrity in extreme conditions, with a silica content typically above 96%, allowing it to withstand continuous temperatures up to 1000° C and short-term exposure up to 1650° C. The PTFE coating not only improves the thread's chemical resistance, particularly against acids and alkalis, but also enhances its lubricity, making it easier to sew and less prone to breaking under tension. Ideal for high-temperature industrial applications, high silica sewing thread is used extensively in the manufacturing of fireproof garments, heat-resistant fabrics, and aerospace and automotive components, where reliability and resistance to harsh environments are paramount.