Kimistone KSF

The product penetrates deeply into the porous structure of the material to be consolidated, thanks to the low surface tension of the solvent. Under standard environmental conditions (+ 20 ° C, 50% UR) the final degree of consolidation is reached after approx. 2 weeks. Kimistone KSF has been tested on many types of stone (natural and artificial) substrates and guarantees the absence of color changes and the absence of significant reductions in the water vapor permeability of the substrate on which it is applied. The product guarantees the consolidation of the stone materials on which it is applied due to the reaction between the ethylsilicates and the water contained in the materials themselves. Ethylsilicates in the presence of water and in a neutral environment are slowly hydrolyzed into amorphous silica. The presence of the solvent causes the ethylsilicates to penetrate the stone material before the reaction. Consolidation is obtained after approx. 2-3 weeks thanks to suitable catalysts that determine the rate of reaction so as to avoid a too rapid reaction which would result in the formation of a very low gel and a too slow reaction that would lead to partial loss of etylsilicate by evaporation. When the substrate has hydroxyl groups (eg sandstones and clay stones), a reaction that also involves a bond between the broken grains is obtained, as the reaction occurs with the same hydroxyl groups. In the case where the support does not contain hydroxyl groups (eg marble and limestone), the amorphous silica is deposited in the porous structure, however obtaining a consolidating effect but without bonds with the stone. The product can be used “as-is”. In the case of supports with open porosity of less than 12-15%, it is advisable to use the Kimistone KSF with a dilution, using ethylene solvent, up to a 1:2 ratio. Kimistone KSF can be applied by low pressure spray or by brush using the pockets, tablets or dive technique. The product must be applied until refused on perfectly dry and clean surfaces. If you intend to repeat a second application of the product, do not do so within 4 hours of the first application. It is advisable to always carry out a preliminary test before the application to assess the amount of product required in relation to the microstructure of the material to be consolidated.