Product Details Magnesium Oxide board MgO board is a factory-made, non-insulating sheathing board product. It can be used for a number of applications including wall and ceiling linings, fascias, soffits, tile backing and underlayment. It is made of magnesium oxide, a type of mineral cement, and is commonly called simply MgO due to its chemical composition of magnesium (chemical symbol Mg) and oxygen (chemical symbol O). Think of MgO as a type of sheathing board (sort of like drywall or cement board) but with much-improved characteristics such as fire resistance, weather ability, strength, resistance to mold, mildew, and so on. Fire Resistance limit of fireproof MgO board: 3mm thickness can reach the request of fireproof. 9mm Wellyoung MgO board could be applied for >= 120mins fireproof lightweight partition wall; 12mm Wellyoung MgO board could be applied for >= 180mins fireproof lightweight partition wall. The data is for reference only. Please contact us for more details on fireproof MgO board in different specifications. Features of magnesium oxid board: 1. Normal MgO board: one smooth, one rough surface; 2. Pasted with wall paper; 3. Coated with latex paint; 4. Glued with ceramic tile; 5. With a design of wood or water or other grain. Specifications and datas Item Size Thickness weight Quantity/20GP(pallet packing) 1 1220*2440mm 3mm 10kg 1800pcs 2 1220*2440mm 4mm 14kg 1300pcs 3 1220*2440mm 6mm 18kg 1080pcs 4 1220*2440mm 8mm 24kg 808pcs 5 1220*2440mm 10mm 28kg 648pcs 6 1220*2440mm 12mm 34kg 540pcs