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Silicate Fiber Board

Updated: 2026-09-25

Overview

Silicate Fiber Board is a versatile industrial material made from bonded silicate fibers, typically alumina-silica based. It combines lightweight construction with exceptional thermal insulation, making it ideal for high-temperature environments. Unlike organic insulation, it is incombustible and resistant to most chemicals. The board is manufactured through a wet-forming process, resulting in a uniform microstructure that ensures consistent performance. Primarily used in heavy industries, it meets stringent safety and efficiency standards. Its adaptability allows customization in thickness (10–100 mm) and density, catering to specific thermal or acoustic requirements. The material is also eco-friendly, often containing recycled content and being fully recyclable.

Physical and Chemical Properties

Silicate Fiber Board exhibits a low thermal conductivity (0.05–0.12 W/m·K), enabling efficient heat retention. Its porous structure contributes to sound absorption, with noise reduction coefficients (NRC) up to 0.7. The material maintains structural integrity up to 1260°C, with minimal shrinkage or deformation. Chemically inert, it resists acids, alkalis, and solvents, though prolonged exposure to strong acids may degrade performance. The board is non-hygroscopic but should be protected from prolonged moisture to prevent minor strength loss. Mechanical properties include moderate compressive strength (0.5–2 MPa), suitable for non-load-bearing applications.

Main Applications

In metallurgy, Silicate Fiber Board lines kilns and furnaces, reducing energy loss and protecting structural components. Petrochemical plants use it for pipeline insulation and fireproof barriers, leveraging its resistance to hydrocarbons. Construction sectors install it in walls and ceilings for both thermal and acoustic insulation. HVAC systems benefit from its mold-resistant properties, while marine applications utilize it for engine room insulation. Specialty grades are employed in aerospace for thermal protection. Its fireproofing capabilities (ASTM E136 compliant) make it critical in safety-critical environments like power plants and refineries.

Safety and Storage

While non-toxic, cutting or machining the board generates respirable fibers. Use NIOSH-approved masks (N95 or higher) and wet methods to suppress dust. Installers should wear gloves and long sleeves to prevent minor skin irritation. Store boards flat on pallets in covered areas; stacking height should not exceed 1.5 meters to prevent deformation. Avoid contact with water during storage. In case of fire, the material does not contribute to flame spread but may release trace silica particles—ensure adequate ventilation during extreme thermal events.

B2B Procurement Guide

Specify operating temperature range, dimensional tolerances (±2 mm standard), and required certifications (e.g., ISO 9001, UL listings). Bulk orders (≥100 m²) typically attract 10–15% discounts. Lead times vary from 1–4 weeks depending on customization. Verify supplier testing reports for thermal conductivity and fire resistance. For export, confirm compliance with destination standards like EU REACH or US EPA. Preferred payment terms include 30% upfront for custom orders. Sample testing is recommended before large purchases, especially for color-sensitive applications.

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