Do Granite and Marble counter tops stain?
All natural stone is porous by nature. Some stones are denser than others such as granites, but nevertheless porous. Some stains (oils, coffee, etc) will set easier than others depending on the material and type of stain. Any product that is left on the surface of the stone will without a doubt penetrate the surface over time. However, if there is a quick cleanup, then the likelihood of a stain setting into the stone is not likely. To protect stone from staining we seal all material with a chemical coating before installation. This process is referred to as sealing.