Why Does Rock Wool Need To Be Coated with Cement Mortar

Rock wool is a commonly used insulation material with excellent thermal insulation and fire resistance properties. However, the surface of rock wool is relatively rough, which makes it easy to absorb dust and moisture, and also makes it vulnerable to physical damage from external sources. Therefore, in order to protect rock wool and prevent it from being damaged or contaminated, a layer of cement mortar is generally applied to the surface of the rock wool.

Cement mortar can protect rock wool and increase its strength and stability, thereby improving its service life. In addition, cement mortar can also provide fire resistance, waterproofing, and anti-corrosion properties, further enhancing the performance and effectiveness of rock wool.

In summary, the use of cement mortar as a coating for rock wool is essential to ensure its long-term performance and durability.