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The variation of weight, absorption ratio and surface water level undergone by the ceramic support protected by the incorporation of a treatment with water repellent products is analyzed. The water repellent products are selected based on their chemical composition in six types, classified in monocomponent and bicomponent. The waterproofing of the ceramic support is carried out through two processes: brush and immersion, with each one of the water repellents. The suction test is carried out, obtaining data each one, two, five, ten, fifteen, twenty, twenty-five and thirty minutes. All the water repellent applied superficially to a porous ceramic material show a reduction in the variation of weight, absorption ratio and surface water level parameters with regards to the base material without waterproofing, regardkes if the method used for its application (brush or immersion).  Waterproofing through the silanes component product applied through brush causes the optimal results with regards to the variation of weight and absorption ratio parameters, being the siliconates applied trhough brush and the silanes/siloxanes through immersion those obtaining the optimal results in the surface water level measurement.

Application method of water repellent products and its influence on the suction process on the facade of ceramic brick