Interior wall partition high density calcium silicate board is a premium building material manufactured from tobermorite crystals and natural fibers. This high-performance board combines excellent strength, fire resistance, and dimensional stability for diverse interior partition applications.
Interior wall partition high density calcium silicate board is a premium building material manufactured from tobermorite crystals and natural fibers. This high-performance board combines excellent strength, fire resistance, and dimensional stability for diverse interior partition applications.

Interior wall partition high density calcium silicate board offers outstanding advantages for modern construction projects. Architects, contractors, and builders choose this material for its perfect balance of density, durability, and ease of installation.
Green Environmental Material – Safe and sustainable composition
Excellent Strength and Toughness – ≥12MPa bending strength
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 – Non-deformation, decades of service
Interior wall partition high density calcium silicate board meets rigorous quality standards:
Thickness Range: 6-12mm (6-35mm full range available)
Standard Sizes: 1220×2440mm, 1200×2400mm, 1200×600mm, 600×600mm
Density: 1.2-1.4g/cm³ for optimal strength-to-weight ratio
Water Content: <10% ensuring dimensional stability
Swelling Ratio: <0.20% prevents warping and deformation
Shrinking Ratio: <0.45% 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)
Asbestos Content: 100% free of asbestos
Color: Grey
Surface Finishing: Natural texture
Edge Type: Square
Certifications: ISO, SGS compliant

Interior wall partition high density calcium silicate board delivers exceptional performance:
Fire Resistance: Class A1 incombustible, 240-minute protection
Water Resistance: Excellent moisture protection
Dimensional Stability: Minimal expansion and contraction
Sound Control: Good acoustic insulation properties
Thermal Performance: Low thermal conductivity, unmatched adiabatic performance
Good Durability – Withstands high-temperature continuous thermal loads
Low Thermal Conductivity – Unmatched adiabatic performance
Light Weight, High Strength – Highest strength among rigid insulation products
No Powdering – Long-term use without ceramic fiber felt-like powdering
Easy Processing – Cut arbitrarily with ordinary tools
Safe and Hygienic – Asbestos-free, no sulfur or chlorine toxic substances
Interior wall partition high density calcium silicate board is ideal for diverse settings:
Building interior partitions
Carriage and marine construction
Vessel interior walls
Suspended ceilings in commercial spaces
Office and institutional buildings
Exterior wall cladding
Paneling systems
Lightweight grouting panels
Interior dry wall decoration boards
Fire-proof, heat insulation, damp-proof panels

Interior wall partition high density calcium silicate board provides unmatched value:
Superior to gypsum and magnesium boards
Higher strength than traditional materials
Low maintenance requirements
Long service life reduces replacement costs
Competitive low price with best service
Lightweight design for easy handling
Simple cutting with ordinary tools
Fast installation saves labor costs
Compatible with various mounting systems
High density calcium silicate boards outperform traditional materials:
| Feature | Calcium Silicate Board | Gypsum Board | Magnesium Board |
|---|---|---|---|
| Fire Rating | A1 (240+ min) | 60 min | 50-70 min |
| Strength | ≥12MPa | 4-5MPa | 6-8MPa |
| Water Recovery | Excellent | Permanent damage | Permanent damage |
| Lifespan | Many years | 5-7 years | 5-7 years |
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