While concrete may not be your first thought when you are designing your shower and bath, it has increasingly become a common material used. It provides a sleek, modern look all while being extremely easy to clean. The concrete will not have grout and joints where mold can build up, requiring less cleaning and maintenance than a traditional shower.
Concrete showers are also a great choice for their visual appeal. Concrete is an incredibly flexible material, and a concrete shower can be visually manipulated to look like a tiled shower. The possibilities, though, are endless: you can even create colorful and elaborate artistic murals in your shower. Concrete is almost infinitely customizable.
The biggest problem with using concrete in your shower is the materials porosity. Concrete is very porous by nature, which is the result of its process of creation. The mixture of Portland cement, aggregate (such as sand or gravel), and water leaves a number of air pockets throughout the material. While these air pockets dont affect the strength of the concrete too much, they will allow the absorption and passage of water through untreated concrete.
Therefore, it is important to properly seal your concrete showers, baths, and sinks with a high quality concrete sealer. First, youll want to apply a penetrating sealer, such as Siloxa-Tek 8510. The Siloxa-Tek 8510 will penetrate deep within the concrete through the tiny surface pores, while filling in tiny hairline cracks and air pockets to prevent the seepage of water into the material. With such a sealer, water will not enter into the concrete, preventing future problems.