Calcium Silicate Boards: A Complete Guide for Buyers in 2025


Calcium silicate boards are versatile building materials widely used in construction for their durability, fire resistance, and thermal insulation properties. Whether you're a contractor, architect, or DIY enthusiast, understanding these boards can help you make the right choice for your project.


How to Find Reliable Calcium Silicate Boards from China in 2025


China remains a top supplier of calcium silicate boards, offering competitive prices and high-quality products. To find reliable manufacturers:

  • Check certifications like ISO, CE, or ASTM compliance.
  • Read customer reviews on platforms like Alibaba.
  • Request samples to test quality before bulk orders.
  • Verify production capacity and lead times.

What Buyers Should Know Before Buying Calcium Silicate Boards from China


Before purchasing, consider:

  • Shipping costs: Bulk orders may reduce per-unit expenses.
  • Customization: Some suppliers offer tailored sizes or finishes.
  • Payment terms: Secure methods like PayPal or LC protect your investment.

Types of Calcium Silicate Boards


Common types include:

  • Standard boards: Ideal for general construction.
  • Fire-resistant boards: Enhanced with additives for high-temperature applications.
  • Moisture-resistant boards: Treated for humid environments like bathrooms.

Functions and Features of Calcium Silicate Boards


Key features:

  • Non-combustible (up to 1,000°C).
  • Lightweight yet durable.
  • Low thermal conductivity for energy efficiency.

Scenarios of Calcium Silicate Boards


Popular uses:

  • Fireproof walls in commercial buildings.
  • Ceiling panels in hospitals.
  • HVAC system enclosures.

How to Choose Calcium Silicate Boards


Match the board to your needs:

  • For fire protection, opt for boards with ≥2-hour fire ratings.
  • In wet areas, choose moisture-resistant variants.
  • For curved surfaces, select flexible options.

Calcium Silicate Boards Q & A


Q: Are these boards eco-friendly?
A: Yes, most are made from natural materials like quartz and lime.


Q: Can they be painted?
A: Absolutely—use acrylic paints for best results.


Q: How do they compare to gypsum boards?
A: They’re more durable and fire-resistant but cost slightly more.


Q: What’s the typical lifespan?
A: Over 50 years with proper installation.


Q: Are Chinese manufacturers reliable?
A: Many are, especially those with international certifications.