China Suppliers Factory for High-Quality Calcium Silicate Board for Wide Building Applications
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Excellent fire resistance
Non-combustible class A material
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Superior water proofing ability
Good moisture resisting ability, not easy to generate swelling or shaping.
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High Strength
The wall of Calcium Silicate board is very strong and durable, not easy to be damaged.
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Wonderful sound and heat insulation performance
Filled with mineral wool, not only heat insulation but also sound insulation
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Stable Dimensions
Both moisture movement and the shrinking percentage are controlled in a optimum range.
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Performance Test Results
| Rupture Strength (MPa) | Non Inflammability | Moisture Expansion Rate (%) | |
| Standard Request | ≥4 | A1 | ≤0.25 |
| Testing Result | 8.1 | A1 | 0.19 |
| Determined | ✔ Pass | ✔ Pass | ✔ Pass |
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Product Specifications
| Thickness (mm) | Density | L × W (mm) | Surface Treatment |
| 4 – 25 |
Common type: 1.2–1.5 g/cm³ High-density type: 1.6–2.0 g/cm³ |
2400 × 1200 Customized available |
Non-belt sanded; belt sanding on the front side is optional. Front side belt sanded; chamfering is optional. |
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Product Images
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Frequently Asked Questions
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What is the rupture strength of the Forest Calcium Silicate Board?
The board achieves a tested rupture strength of 8.1 MPa, which significantly exceeds the standard requirement of ≥4 MPa, ensuring excellent structural reliability for a wide range of building applications.
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Is the calcium silicate board fire-resistant?
Yes. The board has achieved an A1 non-inflammability rating — the highest fire resistance classification — making it suitable for fire-rated wall assemblies, ceilings, and other applications where fire safety is critical.
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What thickness and density options are available?
The board is available in thicknesses ranging from 4 mm to 25 mm. Two density options are offered: the Common Type (1.2–1.5 g/cm³) and the High-Density Type (1.6–2.0 g/cm³), allowing selection based on load-bearing and application requirements.
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What standard panel sizes are available, and can custom sizes be ordered?
The standard panel size is 2400 × 1200 mm. Customized dimensions are also available upon request to meet specific project requirements.
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What surface treatment options does the board offer?
Two surface treatment options are available: non-belt sanded (with optional belt sanding on the front side), and front-side belt sanded (with optional chamfering). These options allow for flexible finishing to suit different aesthetic and installation needs.
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How does the moisture expansion rate of this board compare to the standard requirement?
The tested moisture expansion rate is 0.19%, which is well below the standard maximum of ≤0.25%. This low rate indicates excellent dimensional stability in humid or moisture-prone environments, reducing the risk of warping or cracking over time.



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