Magnesium oxide (MgO) boards have not been universally banned, but specific cases have arisen, leading to restrictions or recalls in certain regions. One well-known incident occurred in Denmark around 2015, when MgO boards were found to absorb moisture excessively, leading to condensation issues. The boards used in Denmark were produced using a magnesium chloride (MgCl2) solution, which is hygroscopic (absorbs water from the air). Under certain conditions, this caused corrosion of nearby metal components like screws and fasteners.
The key reasons that led to concerns or restrictions in some areas are:
Moisture Absorption: Some formulations of MgO boards, particularly those using magnesium chloride, have been found to absorb too much moisture, especially in humid climates. This can cause water accumulation and damage to surrounding materials. MOC, or the magnesium chloride MGO board, is the first generation of MGO boards. Due to containers, much of the chlorine ions within the formulation do not have a proper and strict curing process that leads to the absorption of moisture from air and makes it happen reactions with the salty of the chlorine ions that will cause the moisture with corrosions issue.
Corrosion of Metals: The high moisture content in MgO boards that use MgCl2 as a binder can lead to the corrosion of metal fasteners, such as screws, nails, and other structural elements. This was particularly evident in the Danish case.
Durability in Humid Conditions: MgO boards were promoted as highly durable, but in some instances, their performance in very humid environments was overestimated. This resulted in premature degradation of some boards, especially if they were not installed correctly or lacked proper waterproofing.
It is important to note that newer formulations of MgO boards, such as those that use magnesium sulfate (MgSO4) instead of MgCl2, have addressed these issues. MgSO4 is not hygroscopic and does not cause metal corrosion, making these boards safer for use in a broader range of climates.
In summary, while MgO boards were not "banned" globally, some earlier formulations had issues that led to restrictions in particular cases, primarily due to moisture-related problems. Modern advancements in MgO board manufacturing have resolved mainly these concerns.
The Restoration: From Ban to Improvement
The Shift to Magnesium Sulfate (MgSO4):
Explain how manufacturers responded to the MgCl2 issues by shifting to magnesium sulfate (MgSO4), which is not hygroscopic and does not cause corrosion. This innovation helped address many of the concerns.
New Formulations and Approvals:
Detail how new formulations of MgO boards are gaining approval in places previously banned and how they’re being marketed as a superior alternative to traditional materials like gypsum and fiber cement.
The Promise of Magnesium Oxide Boards
A Green Revolution in Building: Discuss the rise of MgO boards as a sustainable, eco-friendly building material. Highlight how their low carbon footprint, due to their abundant and naturally occurring magnesium, made them highly appealing for green construction practices.
Exceptional Properties: Expand on their numerous applications, such as ceilings, subflooring, fire protection, and decorative materials. Describe their key features, such as fire resistance, mold resistance, and excellent mechanical strength.
MagMatrix New Magnesium Oxide Board -- The Third Generation of MGO Board Industry
MagMatrix’s new magnesium oxide board represents a modern advancement in MgO technology. By addressing past issues and reinforcing the material’s strengths, the board provides a more reliable, sustainable, and versatile residential and commercial construction solution. Its improved moisture resistance, fireproofing capabilities, and eco-friendly production make it an appealing option for green buildings in the future.
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