Quartz Wool

Physical & Chemical Properties

High-Temperature Resistance: Long-term working temperature: 1050-1100℃; Short-term temperature resistance: up to 1500℃; Melting point: ≥1660℃. Excellent thermal shock resistance, no cracking or powdering under rapid temperature changes, maintaining structural integrity in ultra-high temperature conditions.

High Purity & Chemical Stability: SiO₂ purity ≥99.95%. No binder, asbestos or harmful substances, no volatile matter at high temperature. Resistant to most acids, alkalis and organic solvents (except hydrofluoric acid and hot phosphoric acid), suitable for harsh corrosive environments.

Superior Thermal Insulation: Randomly arranged fluffy fiber structure traps static air effectively, thermal conductivity as low as 0.036W/(m·K) at room temperature, 10 times better than ordinary glass fiber. Small heat capacity, quick response to temperature changes, reducing heat loss significantly.

Mechanical Performance: Fiber diameter: 1-14μm (common 3-5μm); Density: 2.2g/cm³; Tensile strength: up to 3600MPa. Fluffy, soft and flexible, good dimensional stability and resilience, easy to process, fill and install.

Excellent Electrical Insulation: Volume resistivity ≥10¹⁶Ω·cm (20℃-1000℃); Dielectric constant: ~3.70 (1MHz); Dielectric loss: 0.0001 (1MHz). Ideal for high-temperature insulation and wave-transparent applications.

Wide Applications

Aerospace & National Defense: Thermal protection system of aircraft, engine insulation layer, rocket nozzle ablative layer, missile and satellite radome, stealth material.

Industrial High-Temperature Equipment: Lining of industrial furnaces, kilns and heating elements, insulation and sealing of high-temperature pipelines, glass tempering furnaces, fiber drawing furnaces and casting ladles.

Semiconductor & Electronics: Insulation and sealing for semiconductor diffusion furnaces, high-frequency equipment and precision electronic components, meeting clean production requirements.

Laboratory & Scientific Research: Gas chromatography liner filling, high-temperature experiment filter media, catalyst carrier, laboratory heating equipment insulation.

Chemical & New Energy: High-temperature flue gas filtration, chemical reactor insulation, exhaust gas treatment, solar photovoltaic and lithium battery equipment insulation.