High Silica Cloth is a high-performance, heat-resistant woven fabric made from amorphous silica fibers containing more than 96% silicon dioxide (SiO₂). It is manufactured from a special fiberglass base fabric that undergoes a leaching process to remove impurities, resulting in a product with exceptional purity and thermal stability.
This flexible, lightweight, and strong textile is designed as a superior, health-conscious alternative to asbestos and ceramic textiles. It maintains its structural integrity and flexibility even under extreme thermal stress, making it the material of choice for critical high-temperature protection and insulation applications.
Key Features & Specifications
· High Purity: SiO₂ content ≥ 96%
· Exceptional Thermal Resistance:
· Continuous operating temperature: 900°C – 1,100°C
· Intermittent/peak resistance: up to 1,400°C – 1,600°C
· Softening point: ~1,700°C
· Low Thermal Conductivity: Provides excellent insulation and heat retention
· Excellent Thermal Shock Resistance: Survives sudden, extreme temperature changes without tearing or degrading
· Chemical & Corrosion Resistance: Highly resistant to most acids, alkalis, and corrosive agents
· High Dielectric Strength: Offers reliable electrical insulation
· Low Smoke & Low Halogen: Emits minimal smoke and contains no halogens, enhancing safety in fire situations
· Low Shrinkage: Thermal shrinkage rate is close to 1%, ensuring dimensional stability
· Flexible & Lightweight: Soft texture allows easy wrapping around uneven surfaces and equipment
· Non-Toxic: Safe for handling and environmentally sustainable
Product Specifications:
| Model | Thickness (mm) | Weight (g/m²) | Weave | Width (cm) |
| ST300 | ~0.10 – 0.28 | 87 | Plain | 82 – 100 |
| ST600 | 0.60 – 0.65 | 580 | Satin | 92 |
| ST1300 | 1.26 – 1.30 | 1200 | Satin | 86 – 92 |
Typical Applications
· Welding Protection: Welding curtains, blankets, pads, and splash protection
· Fire Protection: Fireproof curtains, fire blankets, fire doors, and firefighter garments
· Industrial Insulation: Furnace curtains, turbine insulation, diesel engine exhaust covers, and thermocouple insulation
· Molten Metal Handling: Splash guards and shields in foundries and metal processing
· Aerospace & Defense: Thermal protection systems for rockets and high-temperature ablated parts
· Cable & Hose Protection: Wraps and sleeves for high-temperature lines
· Sealing & Gaskets: High-temperature sealing materials and gaskets