When tile grout breaks or comes loose, it's important to replace it before water seeps between the tiles and mold takes hold.

For example, using unsanded grout to fill wide tile seams (more than ⅛ inch across) will make cracks more likely to appear.

For use inside or out on a variety of surfaces including sanded grout, ceramic tile, porcelain tile, glazed tile, stucco, travertine, marble, slate, granite, terrazzo and more to protect against ...

We may earn revenue from the products available on this page and participate in affiliate programs. Learn More › Any homeowner undertaking a DIY tiling project will work with grout, a putty-like ...