Magnesium oxide board
Magnesium sulfate board is a new generation of magnesium oxide board, also called MgSO4 board. It is made of pure magnesium oxide and magnesium sulfate, reinforced with strong alkali-free glass-fibre mesh.
Using magnesium sulfate instead of magnesium chloride makes MgSO4 panels highly water resistant: there are no halogens in the board for moisture to draw back out.
- Thickness
- 3–30 mm
- Max. size
- 1220 × 3050 mm
- Density
- 900–1400 kg/m³
- Fire rating
- A1, non-combustible
- Fire resistance
- Heat resistance
- Moisture resistance
- Impact resistance
- Building safe
- Insect resistance
- Mould resistance
- Health safe
The MgSO4 board range
Same chloride-free binder; different fillers, densities, surfaces and edges for each job.
MgO Board
3–25 mm1.1–1.4 t/m³
General-purpose MgSO4 board for walls, ceilings, linings and decorative substrates, 3–25 mm.
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Sanded MgO Board
3–30 mm< 0.1 mm
Sanded or polished for accurate thickness, ready for PVC film, HPL and paper lamination.
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MgSO4 Sanding Board
4, 5, 6, 8, 10 mm1.1–1.2 t/m³
Sanded MgSO4 substrate for composite flooring cores, decorative boards and furniture, 4–10 mm.
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Subfloor MgO Board
16, 18, 19, 20 mm1220 × 2440, 600 × 2700 mm
High-strength T&G subfloor for light-steel and timber-frame buildings, 16–20 mm.
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MgO Floor
15, 18, 19 mm≥ 20–25 MPa
Load-bearing MgSO4 floor board for internal and external subflooring and decking, 15–19 mm.
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EPS MgO Board
6, 8, 10, 12 mm0.8–1.0 t/m³
Lightweight MgSO4 board with EPS particles, 6–12 mm, as a substrate for decorative walls.
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Lightweight EPS MgO Board
3–25 mm600–800 kg/m³
EPS particles instead of wood chips for 600–800 kg/m³ density; waterproofed for exterior underlay.
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MgO Fire Door Core Board
27, 38, 45 mm900 × 2100 mm
Magnesium oxide perlite core for fire doors, 27, 38 and 45 mm at 900 × 2100 mm.
View productSizes, thicknesses and edges
- Standard sizes
- 1220 × 2440, 1220 × 2745, 1220 × 3050 mm
- Other sizes
- Made to order
- Density
- 900–1400 kg/m³
- Colours
- Off-white, grey, black, yellow
What MgSO4 board does well
Every product in the range shares these properties of the chloride-free magnesium oxysulfate core.
Fireproof
Non-combustible, A1 fire rating. It does not contribute to the spread or growth of fire and smoke.
Safe for people
Made of natural minerals without dangerous or toxic chemicals; free of asbestos, ammonia, silica, benzene and formaldehyde.
Water resistant
Resists moisture and water and stays structurally and dimensionally stable.
Termite, insect, mildew and mould resistant
Its inorganic nature makes it resistant to termites and insects.
Easy to install
No carcinogenic dust, fly ash or other toxins, so it is safe to work with; light to transport and quick to install.
Bonds to almost anything
Excellent adhesion, so it can be bonded and laminated to many other materials.
Durable
Stronger and longer-lasting than most construction materials.
Need test data?
Our laboratory can provide an in-lab test report for every shipment; third-party reports on request.
Request reports
Surfaces, thicknesses, edges
The formulation changes with the application — strength, water resistance and rigidity — and the surface can be polished, slurried or brushed.
Tell us about your project
Send the board type, thickness, size and quantity. We reply with a quotation, loading plan and lead time — usually within 2 hours on working days.
- Your requirementsProduct, thickness, size, edges and the application.
- Quotation and samplesPrice per sheet and per container, and samples for testing.
- Production and shippingTested in our laboratory, packed on pallets, shipped from Shanghai or Ningbo.
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