Product Specification

Fire resistant and thermally Calcium Silicate Insulation Board engineered for demanding industrial insulation and protection requirements

Product Definition

RG Industrial-grade calcium silicate board is a high-performance, inorganic insulation material engineered specifically for demanding industrial environments. Composed primarily of silica and calcium compounds reinforced with selected fibers, it is manufactured under autoclaved conditions to create a rigid, micro-porous structure capable of withstanding extreme temperatures, mechanical stress, and corrosive conditions while providing superior thermal efficiency and fire protection.

Core Value Proposition for Industrial Applications

• Unmatched Fire Integrity: Provides passive fire protection, maintaining critical insulation and structural barriers during fire events.

• High-Temperature Stability: Engineered to withstand continuous high-temperature service with minimal linear shrinkage.

• Mechanical Robustness: Offers high compressive strength and durability in challenging plant environments.

• Long-Term Reliability: Resistant to moisture, corrosion, and thermal cycling, ensuring prolonged service life and reduced maintenance costs.

Key Performance Characteristics

1. Thermal Performance & Temperature Resistance

• Service Temperature Range:

  • Standard Grade: Up to 650°C (1200°F) continuous service

  • High-Temperature Grade: Up to 1100°C (2012°F) continuous service

• Low Thermal Conductivity: Typically 0.05 - 0.07 W/m·K at 100°C, ensuring high energy efficiency.

• Minimal Linear Shrinkage: <2% at maximum service temperature, preserving system integrity and preventing gaps.

2. Fire Safety & Protection (Passive Fire Protection - PFP)

• Non-Combustible (A1 Class): Will not ignite, fuel a fire, or emit significant smoke.

• Fire Rating: Can provide up to 4 hours of fire resistance for structural elements (ratings vary by system design).

• Integrity Protection: Maintains barrier integrity to prevent spread of fire and hot gases.

3. Mechanical & Physical Properties

• High Compressive Strength: Ranges from 0.5 MPa to >8 MPa, depending on density, allowing use in load-bearing applications.

• Density Range: Industrial grades typically from 220 kg/m³ to 1000 kg/m³.

• Dimensional Stability: Low coefficient of thermal expansion and excellent resistance to warping or sagging.

4. Chemical & Environmental Resistance

• Moisture Resistant: Low water absorption; treated grades offer enhanced hydrophobic properties.

• Chemical Inertness: Resistant to most oils, solvents, and weak acids/alkalis. Chemically stable in most industrial atmospheres.

• Corrosion Inhibition: Non-corrosive to pipes and vessels; chloride content is typically controlled to prevent stress corrosion cracking (SCC) on stainless steel.

Product Grades & Specifications for Industrial Use

Primary Industrial Applications

1. Power Generation

• Boiler Insulation: Furnace walls, casings, economizers, ducts.

• Turbine & Pipework: Insulation for steam lines, feedwater systems, and auxiliary equipment.

• Fire Protection: Encasement for structural steel, cable trays, and critical safety systems.

2. Oil, Gas & Petrochemical (O&G)

• Process Equipment: Vessels, reactors, columns, heat exchangers.

• Pipe Insulation: For both above-ground and subsea applications.

• LNG Facilities: Fire protection and cryogenic spill protection layers.

• Platforms & Refineries: Passive fire protection (PFP) for decks, walls, and structural members.

3. Iron, Steel & Metal Processing

• Furnace Back-up Insulation: Behind refractory linings in reheat furnaces, ladles.

• Equipment Casing: For annealing lines, galvanizing tanks, and process ductwork.

• Personnel Protection: Thermal barriers on walkways and near hot equipment.

4. Marine & Offshore

• A-Class Divisions: Bulkheads and decks requiring integrity and insulation ratings per SOLAS.

• Fire Doors & Dampers: Core material.

• Equipment Housings & Enclosures.

5. Other Key Sectors

• Cement & Glass: Kiln hoods, heat recovery ducts.

• Chemical Plants: Corrosion-resistant insulation for various processes.

• Waste-to-Energy: Flue gas duct and boiler insulation.

Design & Installation Advantages

• Ease of Fabrication: Can be cut, drilled, and shaped on-site with standard woodworking tools.

• Versatile Fixing: Can be mechanically fixed with studs/welds or secured with high-temperature adhesives.

• System Compatibility: Works seamlessly with metal jacketing, mastics, and sealants in complete insulation systems.

• Prefabrication: Available as pre-formed pipe sections, curved segments, and custom shapes to reduce installation time.