Understanding Efflorescence on Natural Stone
When installing stone materials with wet cement mortar, alkaline substances in the cement can migrate to the surface of the stone through its joints or capillaries. As the mortar dries, these substances can crystallize and leave a white powdery residue known as efflorescence.Characteristics of EfflorescenceEfflorescence appears as white streaks that flow downward from the joints of the stone.It seeps out from the coarser capillaries in the stone's surface, creating irregular white powdery pa...