Protectosil® WS 600

Aqueous emulsion for the water repellent treatment of mineral porous materials, especially facades.

Scope of Application

Protectosil® WS 600 is suited for the water repellent impregnation of porous mineral substrates does not form sticky silicone films shows very good penetration on absorbent mineral materials gives water vapor permeable, colorless protection reduces significantly the uptake of water repels water soluble pollutants effective on micro cracks of up to 0.3 mm can be diluted with water is very efficient on mineral rendering, sand-lime brickwork, hard-baked brickwork, roofing tiles We recommend using a minimum concentration of 10% of the active ingredient in water. This corresponds to a dilution with water (preferable demineralized water) of 1:4. Protectosil® WS 600 is not recommended to be applied undiluted. Minimum dilution rate should be 1:1. The concentration to be used and the exact amount to be applied are depending on the absorbance of the substrate. The substrates to be treated should be dry and clean. Acceptable surface cleaning methods include sandblasting and water blasting. During application outside temperatures and surface temperatures should be between 5 °C and 40 °C. Protectosil® WS 600 should not be applied during strong wind or rain. Protectosil® WS 600 should be applied by wet-on-wet flow coating to the saturation point. The solution should be applied in 2 - 3 coats without drying between the coats. On vertical surfaces the solution should run down in the form of a clearly visible descending wet curtain. This is achieved by allowing the solution to flow against the surface of the building material without pressure. Most liquid delivery devices e.g. airless pumping equipment are suitable. The material should not be atomized or applied with a brush. The water repellent effect of Protectosil® WS 600 can develop within minutes or require up to several days depending on the substrate and weather conditions. Therefore, the impregnation should be applied continuously and without a break to avoid overlapping.