Protectosil® WS 670
Aqueous emulsion based on organofunctional silanes for the water repellent impregnation of porous, mineral substrates
Scope of Application
Protectosil® WS 670 is suited for the water repellent impregnation of porous, mineral substrates shows very high reactivity and resistance against alkali penetrates deeply into porous, mineral substrates shows no formation of sticky silicone films gives invisible and water vapour permeable protection reduces significantly the uptake of water reduces the uptake of water soluble pollutants may be further diluted with water For most applications a concentration from 8 % (1 part Protectosil® WS 670 + 4 parts of demineralised water) to 20% (1 part of Protectosil® WS 670 + 1 part of demineralised water) of the active ingredient is recommended. Demineralised water is recommended for diluting. Protectosil® WS 670 is best diluted just before application. The amount of Protectosil® WS 670 to be applied and the concentration to be used are highly dependent on the absorbtivity of the substrate and the desired penetration depth. Very absorbent substrates may require up to 1 l/m² of Protectosil® WS 670.