Mgo board is a type of building material used for a variety of construction projects. It is made from magnesium oxide, a compound that is resistant to fire and moisture. But is mgo board waterproof? The answer is both yes and no.

Mgo board is not completely waterproof. It is highly resistant to moisture and water, but it is not impervious to water. This means that if the board is subjected to a continuous stream of water, it will eventually start to absorb moisture and become damaged. In addition, the edges the board are not as waterproof as the rest of the board, so it is important to seal these areas with a waterproofing sealant.

However, mgo board is highly resistant to moisture. It is often used in areas where there is a high risk of water damage, such as bathrooms and kitchens. It also has a low water absorption rate, which means that it won’t swell or warp in short-term contact with water. This makes it a great choice for areas that may be exposed to moisture for extended periods of time.

Overall, mgo board is a great choice for areas that need to be resistant to water and moisture. It is not impervious to water, but it is highly resistant to moisture and water damage. It is also easy to seal the edges and seams of the board with a waterproofing sealant to ensure that the board is completely waterproof and resistant to water damage.