Inorganic Thermial Calcium Silicate Insulation Board Block 1260℃ 40mm
RG Thermial insulation Calcium Silicate Boards in High Performance
Product Overview
RG Calcium silicate board is an advanced inorganic insulation material manufactured through a hydrothermal reaction of silica, calcium oxide, and reinforcing fibers. The resulting microporous structure creates a lightweight, rigid board with exceptional thermal, fire, and moisture-resistant properties, making it one of the most versatile insulation solutions across construction and industrial applications.
Core Characteristics & Advantages
1. Exceptional Fire Performance
Non-combustible (A1/A2 Fire Rating): Will not ignite, contribute to fire spread, or produce significant smoke
High Temperature Resistance: Continuous service up to 650°C (1200°F) for standard grades, with high-temperature variants exceeding 1000°C (1832°F)
Fire Protection Systems: Maintains structural integrity during fire exposure, protecting structural elements and creating effective fire barriers
Zero Fire Toxicity: Emits no toxic fumes when exposed to flame
2. Superior Thermal Insulation
Low Thermal Conductivity: Typically 0.05–0.06 W/m·K at 20°C
Energy Efficiency: Significantly reduces heat transfer in both high-temperature and building envelope applications
Dimensional Stability: Maintains insulating properties and shape across wide temperature ranges
3. Moisture & Chemical Resistance
Hydrophobic Properties: Naturally moisture-resistant with optional silicone treatments for enhanced performance
Mold & Mildew Resistance: Inorganic composition prevents biological growth
Chemical Inertness: Resistant to most oils, solvents, and mild acids/alkalis
Low Water Absorption: Typically <5% by volume (with treated versions <2%)
4. Mechanical & Physical Properties
High Strength-to-Weight Ratio: Rigid structure with densities ranging from 170–1000 kg/m³
Workability: Easily cut, shaped, and machined with standard woodworking tools
Good Dimensional Stability: Low thermal expansion and minimal shrinkage
Excellent Surface: Suitable for direct finishing or cladding
Product Classification & Grades
By Density & Application
Low-Density (170–350 kg/m³): Primarily for building insulation, ceilings, and wall systems
Medium-Density (350–700 kg/m³): General industrial insulation, fire protection, partitions
High-Density (700–1000+ kg/m³): Structural applications, high-temperature industrial use, load-bearing elements
By Function & Specialization
Standard Building Boards: For interior partitions, ceilings, wall lining
Fire-Rated Boards: Enhanced formulations for fire doors, shafts, protection systems
Industrial Insulation Boards: For pipes, vessels, boilers, and equipment
Exterior Grade: Weather-resistant with improved moisture performance
Acoustic Boards: Enhanced sound absorption properties
Technical Specifications (Typical Values)
| Property | Unit | Standard Grade | High-Temp Grade | Building Board |
|---|---|---|---|---|
| Density | kg/m³ | 220–280 | 600–800 | 650–950 |
| Thermal Conductivity | W/m·K | 0.055 (at 100°C) | 0.09 (at 400°C) | 0.065 (at 20°C) |
| Compressive Strength | MPa | ≥0.5 | ≥5.0 | ≥8.0 |
| Flexural Strength | MPa | ≥0.4 | ≥6.0 | ≥9.0 |
| Continuous Service Temp | °C | 650 | 1000–1100 | 150 |
| Linear Shrinkage | % | ≤2.0 (at 650°C) | ≤1.5 (at 1000°C) | ≤0.5 (at 150°C) |
| pH Value | - | 8–10 | 8–10 | 8–10 |
| Moisture Content | % | ≤3 | ≤3 | ≤3 |
Standard Sizes: 1200×2400 mm, 1220×2440 mm; Thickness: 12–100 mm
Primary Applications
Construction & Building Sector
Fire Protection: Fire-rated walls, shafts, columns, beams, and fire doors
Interior Systems: Partition walls, ceiling tiles, wall lining, duct enclosures
External Wall Insulation: As part of ETICS/rendered facade systems
Passive Fire Protection: Encasement of structural steel, penetration seals
Modular Construction: Prefabricated wall and ceiling panels
Industrial Applications
High-Temperature Insulation: Boilers, furnaces, kilns, heat exchangers
Pipe Insulation: Prefabricated sections for industrial piping
Equipment Insulation: Vessels, reactors, turbines, flue gas ducts
Marine Industry: Fire divisions, accommodation insulation, A-class bulkheads
Power Generation: Thermal insulation in conventional and nuclear plants
Specialized Uses
HVAC Systems: Duct insulation, plenum lining, equipment housing
Clean Rooms: Pharmaceutical and electronics manufacturing facilities
Historical Restoration: Reversible, breathable insulation for heritage buildings
Offshore Platforms: Fire and thermal protection in hazardous areas
Installation & Fabrication
Working Methods
Cutting: Easily cut with hand saws, scoring knives, or power tools
Machining: Can be routed, drilled, and shaped with standard equipment
Fastening: Accepts screws, nails, and adhesives suitable for mineral substrates
Joining: Boards can be butted tightly; joints may be taped, filled, or caulked
Finishing: Can be painted, plastered, tiled, or left exposed
Installation Considerations
Substrate Preparation: Ensure clean, dry, and even surfaces
Mechanical Fixing: Use corrosion-resistant fasteners appropriate for the substrate
Expansion Joints: Allow for thermal movement in large installations
Moisture Protection: Seal edges and joints in high-humidity environments
Safety: Use appropriate dust control and personal protective equipment during cutting
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