1. Introduction to Our High-Performance Calcium Silicate Boards
Are you searching for a dependable, high-performance, and sustainable building material that perfectly balances structural safety with commercial cost-efficiency? Our factory specializes in manufacturing top-tier, industrial-grade calcium silicate boards, offering the most competitive bulk prices for international importers, building material distributors, drylining wholesalers, and large-scale construction contractors worldwide.
Engineered from a precise formulation of high-purity calcareous materials (such as lime and cement) and siliceous materials (such as quartz sand and fly ash), reinforced with premium natural cellulose fibers, our boards undergo a sophisticated high-pressure steam curing process in advanced autoclaves. This specialized molecular bonding results in a crystalline structure known as tobermorite, which endows our panels with unparalleled dimensional stability, high flexural strength, and exceptional durability under the most demanding environmental conditions.
2. Comprehensive Technical Specifications & Parameter Matrix
To ensure full compliance with diverse international building codes and architectural mandates, we maintain strict quality control over our mechanical and thermal properties. Below is the comprehensive technical profile of our standard export product line:
| Technical Property | Test Method / Compliance Standard | Performance Data / Verified Rating |
|---|---|---|
| Bulk Density | ASTM C1185 / EN 12467 | Low Density: 0.8–1.1 g/cm³ | Medium-High Density: 1.2–1.4 g/cm³ |
| Fire Resistance Rating | BS 476 Part 4 / EN 13501-1 / ASTM E84 | Class A1 Non-combustible (Zero smoke development, zero flame spread) |
| Flexural Strength (Modulus of Rupture) | ASTM C1185 (Wet state / Dry state) | Cross-direction: ≥ 12 MPa | Parallel-direction: ≥ 10 MPa |
| Thermal Conductivity | Clean State at 25°C (Mean Temperature) | ≤ 0.24 W/(m·K) (Excellent thermal insulation properties) |
| Moisture Movement (Linear) | From fully saturated to oven-dry state | ≤ 0.25% (Extreme dimensional stability in high humidity) |
| Water Absorption Rate | 24-hour full immersion testing | ≤ 35% (Will not sag, warp, disintegrate, or harbor mold) |
| Asbestos Content | EPA 600/R-93/116 / NIOSH 9002 | 100% Asbestos-Free (Certified organic cellulose fibers only) |
3. Standard Export Dimensions & Customization Capabilities
We understand that different regional markets (such as Southeast Asia, the Middle East, Europe, and Latin America) require specific sizing conventions. We offer fully customizable cutting and thickness profiling:
Standard Dimensions: 1220mm x 2440mm (4ft x 8ft), 1200mm x 2400mm, 600mm x 600mm (for acoustic ceiling tiles), and 600mm x 1200mm.
Available Thicknesses: 4.5mm, 6mm, 8mm, 9mm, 10mm, 12mm, 15mm, 18mm, 20mm, and heavy-duty 25mm industrial barrier slabs.
Edge Profiles: Square Edge (SE) for modular applications or Tapered/Beveled Edge (TE) for seamless jointing and drywall skim-coating.
4. Why Choose Our Factory for Bulk Procurement?
100% Asbestos-Free Certification: Environmental safety is non-negotiable. We strictly enforce a zero-asbestos manufacturing policy. Every production batch is certified free of asbestos, formaldehyde, and other toxic VOCs. This guarantees seamless, stress-free customs clearance in highly regulated markets such as the European Union (CE Mark), the United States, and Australia.
Unrivaled Moisture, Water, and Weather Resistance: Unlike traditional gypsum drywall or plasterboards, our autoclaved calcium silicate panels do not absorb structural humidity to the point of degradation. When exposed to extreme moisture or direct water, they do not rot, swell, delaminate, or lose their mechanical strength. This makes them the ultimate substrate choice for damp indoor areas (commercial kitchens, indoor swimming pools, public bathrooms) and external cladding systems.
High Impact Durability & Total Pest Resistance: Termite infestations and rodent damage plague many soft timber and gypsum alternatives. Our inorganic matrix is entirely immune to insects, termites, and fungal growth. Furthermore, its high density offers superior impact resistance, making it ideal for high-traffic public areas such as school corridors, hospital wards, and subway terminals.
Direct-from-Factory Wholesale Pricing Models: By bypassing trading middlemen and third-party brokers, our factory provides a highly optimized, tiered calcium silicate board bulk price structure. We specialize in Full Container Load (FCL) optimization. Our logistics team utilizes heavy-duty, seaworthy, ISPM-15 certified wooden pallets wrapped in moisture-barrier shrink film to maximize container capacity while driving down your ocean freight cost per square meter.
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