Premium Fire-Resistant Calcium Silicate Boards

Engineered for superior fire protection, moisture resistance, and acoustic performance in modern construction applications

Calcium silicate board

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Calcium silicate board
Calcium silicate board

Introduction

The boards are made with quartz sand, cement reinforced fiber as main raw materials, and made through high temperature, high pressure maintenance and special treatment.

Specification

  • Moisture proof, excellent fire-proof performance, sound-proof, high strength & stable dimensions
  • Non-combustibility found
  • Popular thickness: 6mm, 9mm & 12mm
  • Available size: 1200x2400mm (metric) & 1220x2440mm (imperial)

Character

Moisture proof, excellent fire-proof performance, sound-proof, high strength & stable dimensions

Main Use

  • Internal and external wall parts
  • Sound-adsorb wall parts
  • Furred ceiling

Physical Property

  • Density: 1.3g/cm3
  • Moisture content: 12%
  • Water absorption: 60%
  • Thermal conductivity: average ≥ 0.20W/MK
  • Bending strength: transverse ≥ 8.5N/mm2, vertical ≥ 6.0N/mm2
  • Pulling-out force of screw: 70 N/mm
  • Anti-flex cracking strength: 10 MPa
  • Anti-freeze: no distortion after 25 repeated cycles of freezing and thawing
  • Water-impermeability: through water immersing for 24HR, no water drop appearedon bottom surface.

Laboratory Test Pass

  • Standard Test Method for Behavior of Materials in a Vertical Tube Furnace of 750°C: ASTME136: 2011
  • Standard Test Method for Surface Burning Characteristics of Building Materials : ASTEME84 : 2012 Class A
  • Sound insulation : ISO 717-1: 2006
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How do DOUGLAS Calcium Silicate Boards compare to other fire-resistant materials in construction safety standards?

DOUGLAS Calcium Silicate Boards exceed industry safety standards with verified non-combustibility (ASTM E136:2011) and Class A surface burning characteristics (ASTM E84:2012). Unlike conventional materials, our boards maintain structural integrity during fire exposure while offering superior moisture resistance and sound insulation. This comprehensive protection makes them ideal for critical applications where building safety cannot be compromised. Contact us for detailed performance specifications and certification documentation.

With a density of 1.3g/cm³ and impressive physical properties including high bending strength (transverse ≥ 8.5N/mm², vertical ≥ 6.0N/mm²), these boards maintain dimensional stability in challenging environments. DOUGLAS Calcium Silicate Boards excel in water impermeability tests and demonstrate remarkable freeze-thaw resistance with no distortion after 25 repeated cycles. Ideal for internal and external wall applications, sound-absorbing wall systems, and furred ceilings, these boards meet rigorous international standards including ASTM E84:2012 Class A for surface burning characteristics and ISO 717-1:2006 for sound insulation, making them the preferred choice for professionals demanding excellence in building materials.

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