Tadelakt: Anleitung. So erstellen Sie Unikate aus wasserechtem Kalkputz

Tadelakt is a traditional lime plaster technique from Morocco. By compacting the lime plaster and treating it with soap, a glossy, waterproof surface is created. Originally, tadelakt was used to seal cisterns and steam baths in Morocco. Today, the lime plaster technique allows new design possibilities in bathrooms and kitchens. The right substrates for Tadelakt The substrates for lime plaster should be rough, dry, solid and absorbent. Mineral substrates, such as hydraulic lime plasters, are advantageous. In Morocco, tadelakt is traditionally applied on clay. In this country, the craftsman often finds substrates made of concrete, gypsum plaster, cement board and plasterboard. However, ceramic or aerated concrete blocks can also be coated with tadelakt. From these, individually shaped washbasins and even bathtubs can be made. In this way, the execution of the historical lime plaster technique makes it possible to create truly unique pieces in the bathroom. Critical surfaces such as gypsum board and cement board require a plaster primer and adhesive lime plaster. Alternatively - especially in the bathroom - tile adhesive can be combed on as an adhesive primer and left to stand rough. Tadelakt can even be applied to old tiles. To do this, they are first thoroughly cleaned and then coated with tile adhesive as a primer. This is followed by a layer of lime adhesive plaster with reinforcement. Working wooden substrates are not suitable for Tadelakt. Processing of Tadelakt Tadelakt is applied in two layers. Both layers, as well as the first treatment with soap must always be done on the same day. The application and the first smoothing is done with a spring steel trowel and a semi-precious stone to achieve the high gloss of the surface. The Kreidezeit company also offers a polishing stone made of hard ceramic, which is particularly ergonomically shaped and thus transfers the pressure well to the surface. However, compaction should only take place when the second layer of plaster has already been applied. If the polishing stone still glides over the surface as if on smooth ice, leaving streaks, the plaster is not yet ready for compaction. Only when the surface offers gradually increasing resistance to the circular hand movement can the tadelakt, and thus the fine pores in the surface, be compacted. This may take some time; only when the movement of the polishing stone produces a light tone is the surface sufficiently compacted. Edges must be finished with particular care without chipping and preferably rounded. This also applies to outside corners. For watertight connections in the sanitary area, for example on a shower tray, a plaster rail is required. Soaping the lime plaster In the final work step, olive oil soap is applied with a soft brush. The "black soap" is made from the oil of black olives, the light smooth soap from green olives. It penetrates deeply and protectively into the pores of the substrate, forming the waterproof hydrophobic surface. After application, the soap is rubbed with the polishing stone in circular movements until a mirror-smooth surface is obtained. Polishing with plastic balls After complete drying, but after two days at the latest, apply diluted smoothing soap or "black soap" again. After a short tightening, the surface is polished with a plastic foil bale. To maintain functionality, Tadelakt should be regularly re-soaped in the splash water area. For this purpose, for example, "Marseille soap" from the company Kreidezeit is suitable. Further photos and information on http://www.bauhandwerk.de under http://www.bauhandwerk.de/artikel/bhw... and on http://www.profiheimwerker.info under http://profiheimwerker.info/putz/putz.... Thomas Wieckhorst, editor-in-chief of bauhandwerk, shows the production of Tadelakt. Homepage http://www.bauhandwerk.de Newsletter: http://www.bauhandwerk.de/artikel/bhw... Twitter   / bauhandwerk_   Facebook   / redaktionbauhandwerk   DIY http://www.profiheimwerker.info Translated with www.DeepL.com/Translator (free version)