1. Waterproofing agents are added to the slurry during production.

2. Waterproofing agents are sprayed on the outer surface of the finished product during packaging.
3. MGO board has a high magnesium oxide (MgO) content of 517, resulting in a very low magnesium hydroxide (Mg(OH)₂) content. This prevents it from reacting with carbon dioxide in the air, thereby ensuring excellent weather resistance.