Comparison of Soluble vs. Insoluble Fiber Inorganic Boards under High-Temperature Conditions
1. Soluble Fiber Inorganic Boards
▶ High-Temperature Safety:
Lower melting point (120–150 °C); in case of fire, they release smoke quickly, reducing the risk of injury from smoke inhalation.
▶ Environmental and Biocompatibility:
Biodegradable and bio-soluble, posing minimal harm to humans and the environment; meets green building standards.
▶ Lightweight and Easy to Install:
Compatible with cement-based materials, strong interface bonding, and convenient construction.
2. Insoluble Fiber Inorganic Boards
▶ Excellent High-Temperature Resistance:
Maintains structural integrity and mechanical performance above 1500 °C; fire resistance rating A, suitable for long-term high-temperature applications such as industrial furnaces and fire barriers.
▶ High Stability:
Water-resistant, freeze-thaw resistant; unlikely to crack or deform in extreme climates; service life up to 50 years.
▶ Combined Thermal Insulation and Fire Resistance:
High closed-cell rate (>95%), low thermal conductivity (≤0.045 W/m·K); effectively blocks heat transfer and prevents fire spread.
3. Usage Recommendations:
▶ Soluble Fiber Boards:
Suitable for locations with high environmental and safety requirements (e.g., public spaces, vehicle interiors), but not for continuous high-temperature environments.
▶ Insoluble Fiber Boards:
Ideal for applications requiring long-term resistance to ultra-high temperatures (>1000 °C) and high stability, such as metallurgical equipment or firewalls.



