Fire-Resistant, Moisture-Resistant & High-Strength Inorganic Building Board

Key Features
1. Excellent Fire Resistance
Magnesium Oxysulfate Board is an inorganic building material with good fire-resistant properties.
It is suitable for applications where fire safety is an important consideration, including:
Fire-resistant partition walls
Ceiling systems
Fire-resistant wall systems
Industrial buildings
Commercial buildings
Public facilities
The specific fire rating and fire-resistance performance should be confirmed according to the actual product test report and system configuration.

2. Good Moisture Resistance
The inorganic composition provides good moisture resistance under suitable application conditions.
It can be used in:
Kitchens
Bathrooms
Basement areas
Equipment rooms
Industrial buildings
General high-humidity areas
For continuously wet or water-exposed environments, the appropriate product specification should be selected according to the project requirements.

3. Good Impact Resistance
The combination of inorganic materials and reinforcing fibers creates a dense and stable board structure with good resistance to everyday impact.
This makes Magnesium Oxysulfate Board suitable for wall and partition applications where durability and mechanical stability are required.

4. Acoustic Performance
Magnesium Oxysulfate Board provides useful mass and structural stability when incorporated into wall and ceiling systems.
When combined with:
Acoustic insulation
Mass Loaded Vinyl (MLV)
Damping Soundproof Panels
Light Steel Keels
Multiple board layers
it can form a composite acoustic wall or ceiling system designed to improve overall sound insulation.

5. Good Dimensional Stability
Controlled forming and curing processes help create a stable inorganic board structure.
Key characteristics include:
Good flatness
Stable dimensions
Resistance to deformation
Consistent board structure
Suitable for long-term building applications

6. Inorganic Building Material
Magnesium Oxysulfate Board is primarily made from inorganic materials and is suitable for modern construction projects requiring durable, fire-resistant building materials.
Its specific environmental and safety performance should be confirmed according to the applicable product testing and certification requirements.

Product Composition
Magnesium Oxysulfate Board is mainly composed of:
Magnesium Oxide (MgO)
Magnesium Sulfate (MgSO₄)
Reinforcing Fibers
Inorganic Fillers
Functional Additives
Through controlled formulation and manufacturing processes, these materials form a stable inorganic composite board.

Technical Specifications

Note: Actual specifications may vary according to product formulation, manufacturing process, and board configuration. Final technical data should be confirmed by the product specification and test report.

Applications

1. Partition Wall Systems
Magnesium Oxysulfate Board can be installed with light steel framing to create interior partition and fire-resistant wall systems.
Typical applications include:
Residential buildings
Hotels
Office buildings
Schools
Hospitals
Commercial buildings

2. Ceiling Systems
The board can be used as a ceiling substrate and installed with light steel or aluminum ceiling grids.
Suitable applications include:
Commercial ceilings
Office buildings
Hotels
Public buildings
Industrial facilities

3. Fire-Resistant Walls & Partitions
Due to its inorganic composition and fire-resistant properties, Magnesium Oxysulfate Board can be incorporated into selected fire-resistant wall and partition systems.
Depending on the required performance, it can be combined with other fire-resistant materials to create a complete wall assembly.

4. Industrial Buildings
Magnesium Oxysulfate Board is suitable for selected applications in:
Industrial plants
Equipment rooms
Machinery rooms
Warehouses
Utility areas
Industrial partitions

5. Decorative Substrates
The flat surface and good machinability make the board suitable as a substrate for various interior finishing applications.
It can be further treated by:
Painting
Laminating
Surface coating
Decorative panel installation
Other finishing processes

Magnesium Oxysulfate Board Partition System
Magnesium Oxysulfate Board can be combined with light steel keels, acoustic insulation, and soundproofing materials to create a complete composite partition system.
Typical Wall Structure
Building Structure
↓
Light Steel Keel
↓
Acoustic Insulation / Soundproofing Material
↓
Magnesium Oxysulfate Board
↓
Surface Finish
↓
Finished Wall
For projects with higher fire or acoustic requirements, additional layers of MLV, damping soundproof panels, acoustic insulation, or building boards can be incorporated into the wall system.

Magnesium Oxysulfate Board Ceiling System
Magnesium Oxysulfate Board can be used as a ceiling substrate with light steel or aluminum ceiling grids.
Typical Ceiling Structure
Structural Slab
↓
Hangers
↓
Light Steel Keel / Aluminum Ceiling Grid
↓
Magnesium Oxysulfate Board
↓
Surface Treatment
↓
Finished Ceiling
The system can also accommodate lighting fixtures, access panels, ventilation equipment, and other ceiling components.

Product Advantages
Fire Resistant
Its inorganic composition provides good fire-resistant properties for building wall and ceiling applications.
Moisture Resistant
Provides good moisture resistance and dimensional stability under suitable application conditions.
Strong & Durable
The reinforced inorganic structure provides good impact resistance and mechanical stability.
Versatile Applications
Suitable for partition walls, ceilings, fire-resistant walls, decorative substrates, and selected industrial building applications.
Factory Direct Supply
As a professional Magnesium Oxysulfate Board manufacturer, we provide factory-direct supply for overseas distributors, contractors, importers, and construction projects.
Custom Manufacturing
We can customize:
Thickness
Dimensions
Density
Color
Packaging
Product labeling
OEM branding

OEM / ODM Services
We provide flexible OEM and ODM services for overseas building material distributors, contractors, importers, and large construction projects.
Available services include:
Custom thickness
Custom dimensions
Custom density
Custom color
Custom packaging
OEM branding
Bulk project supply
Product testing documentation
If you provide your project drawings, required specifications, estimated quantity, or technical requirements, our team can recommend suitable Magnesium Oxysulfate Board specifications and complementary materials.

Quality Control
We implement quality control throughout the manufacturing process.
Raw Material Inspection
Magnesium oxide
Magnesium sulfate
Reinforcing fibers
Inorganic fillers
Functional additives
Production Process
Material batching
Mixing
Forming
Pressing
Curing
Drying
Cutting
Finished Product Inspection
Thickness
Dimensions
Density
Flatness
Strength
Appearance
Fire performance
Moisture resistance
Final technical specifications are confirmed according to the actual product and applicable test reports.

Frequently Asked Questions
Q1: What is Magnesium Oxysulfate Board?
Magnesium Oxysulfate Board is an inorganic building board primarily made from magnesium oxide, magnesium sulfate, reinforcing fibers, and other inorganic materials.
Q2: What is Magnesium Oxysulfate Board used for?
It is mainly used for partition walls, ceiling systems, fire-resistant walls, interior construction, decorative substrates, and selected industrial building applications.
Q3: Is Magnesium Oxysulfate Board fire resistant?
Yes. It is an inorganic building material with good fire-resistant properties. The exact fire rating and fire-resistance period should be confirmed according to the actual product test report and complete system configuration.
Q4: Is Magnesium Oxysulfate Board moisture resistant?
Yes. It provides good moisture resistance under suitable application conditions and can be used in kitchens, bathrooms, equipment rooms, and other appropriate high-humidity environments.
Q5: Can it be used for partition walls?
Yes. It can be installed with light steel framing and combined with acoustic insulation and soundproofing materials to create composite partition systems.
Q6: Can it be used for ceilings?
Yes. Magnesium Oxysulfate Board can be installed with light steel or aluminum ceiling grids for commercial, public, and industrial ceiling applications.
Q7: Can the board be customized?
Yes. We support customization of thickness, dimensions, density, color, packaging, and OEM branding.
Q8: Can you supply complementary building materials?
Yes. In addition to Magnesium Oxysulfate Board, we can supply light steel keels, aluminum ceiling grids, Magnesium Oxide Board, calcium silicate board, damping soundproof panels, Mass Loaded Vinyl (MLV), fiberglass acoustic panels, and mineral wool acoustic panels.