Overview & Benefits – Magnesium Oxide Board

MgO Board — The New Generation Building Material

The Wasatch Panel Solutions® product line is engineered to eliminate the toughest problems faced by architects, engineers, contractors, and builders today while also making construction easier. Addressing both, magnesium oxide boards result in lower construction costs during installation and reduced maintenance expenses over the lifespan of the building.
Wasatch Panel Solutions Building Products Ltd. provides a better alternative for healthy, affordable, durable, and energy efficient buildings. MgO board is a technologically advanced building material offering superior performance in every category when compared to traditional wood, gypsum, and cement based products.

Magnesium oxide more commonly called magnesia is a versatile mineral that when used as part of a cement mixture and cast into thin cement panels under proper curing procedures and practices can be used in residential and commercial building construction. MgO magnesium board are suitable for a wide range of general building uses and for applications that require fire resistance, mold and mildew control, as well as sound control applications and many other benefits.

As an environmentally friendly building material, magnesia board has strength and resistance due to very strong bonds between magnesium and oxygen atoms that form the magnesium oxide molecules (chemical symbol MgO).

Magnesia boards are used in place of traditional gypsum drywall as wall and ceiling covering material and sheathing, as well as in a number of other construction applications.” (description from Wikipedia)

Since MgO board is a mineral based green building product and it is homogeneous, there will be no delamination over time. It can also have a positive impact on occupants’ health and safety while extending the life of the building investment.

What Differentiates MgO Board From other Materials?

MgO Board is virtually impervious to: 
MgO boards actively prevent the growth of mold or mildew and are also environmentally friendly and non-toxic.

In addition to the above characteristics, MgO has excellent adhesion values that are perfect for Portland stucco, acrylic stucco, wallpaper, stone, tile, brick, and much more. MgO’s adhesion values also allow it to be endorsed by most major suppliers of finishes including Imasco Minerals, Master Wall, Acrylabs, Mapei, Surecrete, Carpenter Stone, Total Wall, Stucco Flex, and Encap are part of a growing list. Since MgO Panel Solutions Board is glass smooth on one side, a level five beautiful and durable finish can be achieved with much less work than typical gypsum board and it can be painted the same day as they are installed. For paint, it is recommended to use a specified primer such as Sherwin Williams’ Loxon.

Wherever gypsum and fiber-cement products are used, MgO is a superior alternative. Applications include: interior walls, ceilings, backer board, and underlayment; exterior wall cladding, soffit, siding, and trim. MgO is also widely used in MgO Insulated Panels (MIP) and such Original Equipment Manufacture (OEM) applications as MgO Panel Solutions Cladding System, an integral rain-screen commercial grade siding.

MgO board has different characteristics than gypsum. It can be scored and snapped but better results come from cutting with carbide saws and shaping with routers.  Attachment can be done using a nail gun, which results in much faster construction time or screws that are able to self countersink work. MgO board generally has superior strength than gypsum for impact, fastener holding, and shear applications. A single screw in a 12 mm board can hold 200 lbs in shear and half that amount in tension. Due to its hardness, Corner and J beads are not required. Joints do not have to be on a stud and it is possible to go from board installation to painting the same day. Moreover, because of its stiffness, thinner boards can be used. Ten millimeter (3/8 inch) works well  for walls  and eight millimeter (5/16 inch) can be used for ceilings.

Qualifications & Safety

Fungus and Mold: Wasatch Panel Solutions Board is non-nutrient for fungus and mold when tested in accordance with ASTM G21, magnesium chloride is antimicrobial by nature.

Fire Safety: Wasatch Panel Solutions Board is ASTM E119 & NFPA 251/ UL263 – CAN / ULC-S101M, S-135 classified non-combustible, 2010 NBC.

Water: Moisture and water have no effect on Wasatch Panel Solutions Board as is shown by the ASTM C1186-02 test.

Impact: Wasatch Panel Solutions Board is resilient to impact as tested by the ASTM C1325-04.  MgO Panel Solutions products can with stand abuse, as they are highly impact tolerant.

Freeze and Thaw: Wasatch Panel Solutions Board’s freeze-thaw testing exceeds the requirements of ASTM C1185 and AC386: 50 cycles have no effect.

Fastener and Nail-Head: Wasatch Panel Solutions Board provides a solid substrate suitable for screw or nail fastening.  ASTM C1325-04

Expansion and Contraction Properties: <0.02% delta  60 degrees C and <0.04% delta 60% humidity.


MgO board has very low carbon footprint and it can be recycled or re-purposed. It contributes to clean landfills since it is classified as a mineral and when ground to powder becomes a valuable soil amender.