What is Efflorescence? Kerakoll Zero Efflorescence Solution Have you ever noticed white deposits on the wall and floor surfaces of your tile or stone installations? This white residue is the result of efflorescence. Efflorescence is a natural occurrence in Portland cement applications. All Portland-cement based products, which are present in concrete render and screed mortars, and most cementitious adhesives and grouts, will have this presence of calcium hydroxide crystals after the hydration process. Efflorescence usually arises from the percolation of water through the cement-based backing that leaches out soluble salts, which are then deposited on the surface through the joints. Once the water evaporates, it leaves behind a white residue. Whilst efflorescence is harmless, it is unsightly, leading to many complaints to builders from owners. #Kerakoll #keepingtheenvironmentgreen #livinggreen #buildgreen #Construction #Melbourne #waterproofers #waterproofing #waterproofingsystems #builders #architects #tilers #tiling #adhesive #Levelling #screed #balcony #bathrooms #bathroom #melbournebuilders #melbournebuilder #concretor #melbournearchitects #Melbourneconstruction #Sustainability #sydney🇦🇺 #greenbuilding #silicafree (at Australia Wide) https://www.instagram.com/p/CoDz3YkB2UP/?igshid=NGJjMDIxMWI=