Why Does Grout Get Dirty? The Science Explained
Grout gets dirty because cementitious grout is porous, textured, and slightly lower than the tile surface, so it absorbs liquids and traps soil that tile sheds. As water evaporates, dirt, oils, soap residue, minerals, and microorganisms remain in the joint, where repeated traffic and moisture darken the grout. Key Facts at a Glance Standard cement […]