- Quickness: which due to this property can be used plaster in the multiplicative arch and the construction of thin blades that must be hardened and fastened in place before laying each row of bricks.
- Increase in volume when hardening: This property of gypsum fills all the pores and thus prevents the plaster layer from cracking and prevents insects from nesting in it.
- Fire resistance: Hardened gypsum, like gypsum, has two crystalline water molecules. If the gypsum is exposed to the heat caused by the fire, this crystallization is separated from the gypsum again against the heat and is placed in front of the fire as a layer of water. In this way, gypsum can resist the spread of fire to other spaces for 2 to 3 hours.
- Acoustic properties: Plaster has a good behavior against acoustic vibrations. In a way that it absorbs 60 to 70% of these vibrations and prevents its reflection.
- Plasticity: The result of this property is the ductility of plaster into beautiful shapes and designs by the art of plastering.
- The white color of gypsum: which makes gypsum paintable in any color, while white is a soothing and beautiful color.
- Gypsum strength: Gypsum is resistant to compressive and tensile forces, which is sufficient for use in buildings.
- The price is right
- Abundance and availability
- Not water resistant: Gypsum is very weak against water and moisture. The whitewashed layers of gypsum are drummed against moisture and appear separately on the wall, and after the moisture is removed and the place is dry, the drummed gypsum does not return to its original state. Therefore, the use of plaster should be avoided in places that are in contact with water, such as bathrooms, bathrooms and kitchens, as well as in wet areas.
- Corrosion in metals: Gypsum reacts with metals such as iron, lead, zinc and produces sulfate, causing corrosion and rust of the metal.
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