Main Difference between Magnesium Sulfate Board and Magnesium Oxide Board
Magnesium sulfate board and magnesium oxide board might appear similar, but these two materials have some essential differences. In this article, we look at the difference in their make-up and, more importantly, the various applications of these boards to help you choose the most suitable one for your next project.
Magnesium Sulfate Board
Also referred to as MGSO4 board, chloride-free board, or sulfate MGO board, magnesium sulfate board is a waterproof and lightweight, non-flammable, and non-asbestos panel product that is commonly used in SIPs (Structural Insulated Panels) decoration and construction. The board comprises magnesium oxide (MGSO4), magnesium sulfate, wood fiber, and perlite. Magnesium sulfate board has a specific temperature and a long curing duration. It provides excellent performance in stability, impact strength, and bending strength.
Magnesium sulfate board, also known as MgO sulfate board or MgSo4 board, has been widely used in building construction in recent years. Its most significant advantage is not to absorb moisture back to halogen, and there are many sources of magnesium sulfate, including the reuse of industrial waste acid. The primary raw materials of magnesium sulfate board are magnesium oxide, magnesium sulfate, perlite, halogen, fiberglass mesh, and so on.
The main features of magnesium sulfate include
Waterproof, fireproof, non-asbestos, heating isolation, lightweight, sound reduction, impact resistance.
This board has been exported to the USA, the UK, Australia, Ireland, Chile, New Zealand, Thailand, Poland, etc.
Applications of magnesium sulfate board include
The Decorative applications For Internal Walls, Partitions & Ceiling, The Underlay board for Floor and Wall tile, The Sub-roof board
Magnesium Oxide Board
Magnesium oxide board, or MgO board, is a factory-produced on-insulating sheathing board. It has a variety of applications, including underlayment, tile backing, soffits, fascias, and ceiling and wall linings.
The board is made from the mineral cement called magnesium oxide. It serves as a form of cement board or drywall. However, it has additional properties such as all-weather ability, fire resistance, mold/mildew resistance, and strength.
When used in the context of building construction, magnesium oxide board is available in a variety of sheet sizes and thicknesses. Available grades for this board include utility grades, rough textures, and smooth finishes. MgO board is light gray, beige or white in color. When you knock it with your knuckles, it produces a "hard" sound.
Magnesium oxide boards, like cement and gypsum sheathings, can be used in many applications. However, even though the applications are similar, the substitution is not one-to-one regarding joint treatments, fastening methods, and sheet thicknesses. Magnesium oxide board is the easiest to use among all these options.
The possible uses of magnesium oxide board include
Partitions Fire walls Shower stall tile backer board Structural sheathing for wood or metal stud walls Shaft liners Facings for structural panels designed to use MgO as the facing Soffits Ceilings Fascia Substrates for insulated and coating systems (e.g., Stucco, EIFS, and Direct-Applied Finish Systems)
Magnesium oxide board is more complex than drywall, but it can still be scored and snapped with enough effort. It's primarily used as a cross between cement boards and drywall. You can use a power saw to cut the MgO board. Moreover, you can drill through it and fasten it like other comparable boards. Sawing through it produces dust, so precautions should be taken even though it is inert.