Magnesium Oxide Board Grade

Magnesium oxide board grade is commonly known as bitter earth, which is an alkaline oxide with the general properties of alkaline oxides and belongs to a cementitious material. It's a white powder (light yellow is magnesium nitride), odorless, tasteless, non-toxic, and a typical alkaline earth metal oxide. Its chemical formula is MgO. White powder, the melting point is 2852°C, the boiling point is 3600°C, and the relative density is 3.58 (25°C).

Magnesium oxide board grade is soluble in acid and ammonium salt solutions and insoluble in alcohol. When exposed to the air, it is easy to absorb moisture and carbon dioxide and gradually become basic magnesium carbonate. It combines with water to form magnesium hydroxide under the specified conditions, which is a slightly alkaline reaction. The pH of the saturated aqueous solution is 10.3. Please feel free to contact us.

Magnesium oxide board grade is requested for high reactivity with low Fe2O3 and CaO and high LOI. It could shorten the curing time and be better for drying. Magnesium oxide reacts with magnesium sulfate, or chloride, to produce Magnesium cement board for building construction is available in various sizes and thicknesses. It is not a paper-based material. It generally comes in a light gray, white, or beige color. Numerous versions and values of grades exist, including smooth face, rough texture, utility, and versatile grades, as well as different densities and strengths for different applications and uses.

Magnesium board benefits include impressive strength, as well as its fire, mold, and insect resistance, which make it suitable for a wide range of applications, from tile backer and wall panels to exterior trim and lap siding.

And it also has the following function:

Fire Resistant

Class A1 fire-rated product. Scores a 0/0 rating on the ASTM E84/UL 723 flame spread and smoke developed index. No plywood, OSB, or drywall panel can claim this. Releases up to 30 lbs. of water as vapor during a fire event, helping to cool and contain the fire.