How do Protecs cementitious products work exactly?
Chemical agents (organic and inorganic salts) are used in the Al Helaili Waterproofing range of cementitious waterproofing products. These require the presence of water to react with oxides of, for instance calcium, aluminum, iron and others, to form large complex molecules. The ions all having one or more free chemical bonds interact with each other, or with other complex ions, to produce a long chained complex chemical bond which then crystallizes in the concrete’s capillary system. These molecular complexes are capable of bonding physically or chemically with considerable amounts of water. However, they still allow the passage of water vapor, thus allowing the concrete to breathe. The complexes are also capable of exchanging atom groups with nearby molecules in a similar way to ion exchange used in water softeners and can in this way penetrate through the capillaries, deep into the substrate. Here they react as just described with calcium oxides and hydroxides also popularly called
