The surface must be clean, dry, smooth, load-bearing and meet the conditions of preparation in accordance with the requirements. Contaminants and substances that adversely affect adhesion must be removed, and unevenness or chips must be leveled with appropriate materials, such as "Klebe -und ArmierungsMasse AM 195" or "KlebeMasse KM 193".
Thoroughly mix GrundKonzentrat concentrate before use, dilute with clean water and mix thoroughly again. When preparing the solution you need to follow the following proportions of dilution: a) for weakly absorbing bases: 1 part of concentrate to 4 parts of water (1: 4); b) for normally absorbing bases: 1 part concentrate to 5 parts water (1: 5); c) for strongly absorbing bases: 1 part of concentrate to 7 parts of water (1: 7); d) for gypsum bases: 1 part concentrate to 9 parts water (1: 9). If not all concentrate has been used during operation, it should be tightly closed with a lid and left until the next use.
GrundKonzentrat concentrate diluted with water in a certain proportion should be applied with a paintbrush or brush undiluted in one or two passes until the surface is completely saturated. Do not allow the formation of a shiny layer after drying.