Fireproof calcium silicate board for internal cladding is a high-performance building material manufactured from cement, quartz sand, and natural fiber reinforcement. This advanced board combines exceptional fire resistance with superior durability for interior wall applications in commercial and residential buildings.
Fireproof calcium silicate board for internal cladding is a high-performance building material manufactured from cement, quartz sand, and natural fiber reinforcement. This advanced board combines exceptional fire resistance with superior durability for interior wall applications in commercial and residential buildings.

Fireproof calcium silicate board for internal cladding offers outstanding advantages for modern construction projects. Architects, contractors, and builders choose this material for its perfect balance of safety, strength, and easy installation.
Natural and Elegant – Well effect decoration for beautiful interiors
Fast and Simple Construction – High efficiency, lower cost, direct nail installation
Stable Maintenance – Long time use, more than 50 years service
High Strength – Anti-bending strength over 12MPa, suitable for crowded places
Class A1 Fireproof – 4-hour fire resistance for maximum safety
Fireproof calcium silicate board for internal cladding meets rigorous quality standards:
Thickness Range: 4.5-25mm for various application needs
Standard Sizes: 1200×2400mm, 1220×2440mm, 1200×3000mm, 1220×3000mm
Density: 1.2-1.3g/cm³ for optimal strength-to-weight ratio
Water Content: ≤10% ensuring dimensional stability
Swelling Ratio: ≤0.25% prevents warping and deformation
Shrinking Ratio: ≤0.50% maintains size over time
Anti-Bending Strength: ≥12MPa for structural reliability
Fire Resistance: 240 minutes (GB/T9978-1999)
Fire-Proof Rate: Class A1 incombustible (GB8624-1997)
Radioactivity: GB6566-2001 compliant (A-class Decoration Materials)
Color: Natural grey
Surface Finish: Sanding available for exterior grade
Certifications: ISO9001:2008, ASTM C1186-08, CE, Green Building Material Certificate

Fireproof calcium silicate board for internal cladding delivers exceptional performance:
Fire Resistance: Class A1 incombustible, 4-hour protection
Water Resistance: After wetting, strength drops 20-40%, recovers 100% after drying
Dimensional Stability: Minimal expansion and contraction
Impact Resistance: Withstands daily use in high-traffic areas
Thermal Performance: Excellent heat insulation for comfort
Green Environmental Materials – Safe and sustainable
Excellent Strength and Toughness – Reliable structural performance
Water-Proof, Fire-Proof, Damp-Proof – Triple protection system
Antisepsis and Moth-Proofing – Prevents biological degradation
Good Acoustic Insulation – Effective noise reduction
Good Thermal and Heat Insulation – Energy efficient
Durability and Long Lifetime – More than 50 years of service
Non-Deformation – Maintains shape over time
Easy Processing – Simple cutting and installation
Faster Working – Saves time and labor costs
Fireproof calcium silicate board for internal cladding offers practical installation benefits:
Direct Installation – Can be installed with nails like gypsum board
Fast and Simple Construction – High efficiency, lower cost
Lightweight Design – Easy to handle and transport
Simple Processing – Can be cut with standard tools

Fireproof calcium silicate board for internal cladding is ideal for diverse interior settings:
Interior wall cladding and paneling
Partition boards for offices and commercial spaces
Suspended ceiling tiles
Interior dry wall decoration
Office buildings and corporate headquarters
Emporium and retail stores
Hotels and hospitality venues
Hospitals and healthcare facilities
Schools and educational institutions
Stations and transportation hubs
Fireproof calcium silicate boards outperform traditional materials:
| Feature | Our Board | Gypsum Board | Magnesium Board |
|---|---|---|---|
| Fire Rating | A1 (240+ min) | Non-Flammable | Incombustible |
| Strength | ≥12MPa | 4-5MPa | <12MPa |
| Water Recovery | 100% after drying | Permanent damage | Permanent damage |
| Lifespan | 50+ years | 5-7 years | 5-7 years |
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