Protectosil® preserves functionality and aesthetics of building facades
Protectosil® products are clear, breathable, and penetrating. They are silane-based and suitable for above-grade brick masonry, concrete masonry and concrete.

Depending on the kind of surface protection desired and the preferred application method, Evonik offers suitable Protectosil® products for various needs.

The Nassau Hall of the Princeton University, a beautiful sandstone building constructed in 1756, was treated with Protectosil® CHEM-TRETE® 40 VOC.

Protectosil ANTIGRAFFITI® protects the inner courtyard and sandstone benches of the Louvre museum in Paris, France.

Cleaning the windows takes several days. Accordingly, taping the windows and window frames prior to applying a surface protection agent on the facade would have cost considerable time and money. Because Protectosil® CHEM-TRETE® BSM 400 does not leave any residue on glass or metal, operators decided in favor of treating the building efficiently with Protectosil®.
We will show you in the video how facades are optimally protected against environmental and weathering influences like rain, snow, grime, oil, exhaust gases and microorganisms.
Protectosil® products will not yellow, peel or fade, and they keep the building façade looking natural. By reducing the amount of water entering the substrate, Protectosil® products discourage the entry of water carrying contaminants such as salts and dirt, reducing deterioration caused by efflorescence, mildew, scaling, acid rain and spalling.