magnesium oxide Magnesium oxide is one of the main products of Persia Paya Madan Magnesium oxide is a common type of magnesium supplement that is widely used in a variety of fields Persia Paya Madan is one of the main producers of magnesium oxid in Iran which supply a variety of magnesium oxide products for wide range of applications, such as agricultural, industrial and chemical, construction, environmental, steel / refractories. Our products are known with a consistency in quality and low impurity levels, low heavy metals & trace elements. The chemical purity of our caustic magnesia products varies from the low MgO content grades for the agricultural industry to high MgO levels for refractory based productions. When building with MgO panels it is recommended to use coated fasteners on specific increments, as well as using protective measures to eliminate water penetration. In iran MgO products are a very popular building material but are renowned for the corrosive effects caused by the MgCl2 that may leech out over time due to moisture. The exposure to resulting MgCL2 may corrode any untreated metal fasteners. There is also evidence to support corrosive effects when moisture is present creating a "saturated effect" and there can be issues if non-coated fasteners are used.