Application of waterproofing from the inside in foundation curtain walls

Surface preparation

Care must be taken to ensure that the application area is durable, dry, clean, dust-free and suitable for the next steps. The surface must be free of all oil, rust, thick lubricating oil and paraffin residues that will weaken the adhesion, the surface must be free of debris and the surface must be saturated with moisture. A thin layer of cement syrup on the surface should be scraped off, and very smooth surfaces should be lightly roughened. Gaps between 5mm and 20mm deep must be repaired two days in advance with a suitable TAMCRETE® repair material. The surface to be applied should be wetted with water before application, but creating a water puddle must be avoided. Each layer should be applied in the opposite direction of each other. The next layer should be applied after waiting 5-6 hours depending on the temperature of the surroundings.

Application of water insulation

IZOMAX® C25 Kapiler is applied to the concrete surface with a brush or roller. IZOMAX® C25 Kapiler is absorbed by the concrete when applied to the surface. Then the active chemicals inside react with moisture in the capillary gaps of the concrete. It also forms insoluble crystals. These crystals fill the gaps and micro-cracks in the concrete, preventing the future water leaks, protecting the concrete and the instruments from the corrosive effects of water. After the application of waterproofing, the entire surface should be plastered with a thin plaster to prepare the surface or to prepare it for further applications.