Environmental Building Board
Fire-proof Board
Sound Resistance
Termite Resistance
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China Magnesium Oxide Boards (MgO Boards) - High-Quality Suppliers and Factory for Construction Solutions
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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.
1. Core Parameters
| Density | 950 - 1150 kg/m³ (59 - 72 lb/ft³) - Optimized for strength-to-weight ratio |
| Thickness | 6mm, 8mm, 9mm, 12mm, 15mm, 18mm, 20mm (Custom thickness available). |
| Size | 1220mm x 2440mm (4' x 8'), 1200mm x 2400mm. (Custom sizes possible). |
| Color | Natural off-white/light gray |
2. Fire Performance (A1 Grade)
| Fire Reaction | A1 |
| Flame Spread | Zero flame spread (ASTM E84 / UL 723: Class A) |
| Smoke Developed Index (SDI) | < 5 (ASTM E84 / UL 723) |
| Heat Release | Total Heat Release (THR) and Peak Heat Release Rate (PHRR) |
| Toxicity | Zero |
3. Mechanical Strength & Durability
| Flexural Strength | ≥ 15 MPa (EN 12467) |
| Modulus of Elasticity | ≥ 4500 MPa (EN 12467) |
| Impact Resistance | High resistance to impact damage |
| Screw Holding Capacity | Meets or exceeds relevant building standards |
| Nail Pull Resistance | ≥ 75 lbf (340 N) (ASTM C473) |
| Thermal Shock Resistance | Exceeding 1000°C without spalling or cracking |
4. Moisture & Environmental Resistance
| Water Resistance | < 10% by weight after 24h immersion (EN 12467) |
| Moisture Vapor Transmission | Allows walls to "breathe" |
| Freeze-Thaw Resistance | Excellent performance after multiple cycles (ASTM C666) |
| Mold & Mildew Resistance | Inherently inorganic core inhibits growth (ASTM G21, ASTM D3273) |
5. Thermal & Acoustic Properties
Thermal Conductivity (λ): ~0.15 - 0.20 W/(m·K) - Provides basic insulation.
Acoustic Performance: Contributes to sound reduction in wall/ceiling assemblies.
6. Environmental & Health
VOCs: Zero VOC emissions (ISO 16000).
Formaldehyde: Free (< Detection Limit).
Asbestos: Free of Asbestos & Heavy Metals.
Sustainability: Recyclable mineral content.
7. Surface & Workability
Surface Finish: Smooth, "PureGuard Treated" finish.
Machinability: Easily cut, routed, or drilled with standard tools.
Adhesion: Substrate for tiles, paints, and plasters.
8. Certifications & Compliance
Fire: EN 13501-1: A1, ASTM E84 Class A, BS 476.
Structural: EN 12467, ASTM C1288 / C1325.
Quality: ISO 9001, LEED contributable.
Frequently Asked Questions
What is Magnesium Oxide (MgO) board?
MgO board is a factory-made, non-insulating mineral board product used for general construction. It is an environmentally friendly building material with high fire resistance and durability.
Is MgO board completely fireproof?
Yes, it is rated as A1 Grade (non-combustible) with zero flame spread and zero smoke development, making it one of the safest building materials available.
Can MgO boards be used in wet areas?
Absolutely. MgO boards have excellent water resistance and are inherently resistant to mold and mildew, making them ideal for bathrooms, kitchens, and basements.
How do you cut and install MgO boards?
They can be cut using standard woodworking tools like circular saws or hand saws. They can be fastened using screws or nails, similar to traditional cement or gypsum boards.
Does MgO board contain toxic substances?
No. Our MgO boards are free of VOCs, formaldehyde, asbestos, and heavy metals, ensuring high indoor air quality for any project.
Can I paint or tile directly onto the board?
Yes, the smooth factory finish provides an excellent substrate for direct application of tiles, paints, renders, and veneers.