Tile Your Way to Success 2025: Ace the Red Seal Tilesetter Challenge!

Sealing grout serves the essential purpose of protecting it from stains and moisture penetration, thereby extending its lifespan. Unsealed grout is porous and can absorb liquids, leading to discoloration, staining, and the growth of mold or mildew in wet areas. By applying a sealant, the porous surface of the grout is coated, creating a barrier that prevents liquid infiltration and enhances its durability over time. This protective layer helps maintain the appearance of the grout and contributes to the overall integrity of the tiled surface, particularly in high-moisture environments such as bathrooms and kitchens.

While enhancing the color and facilitating easier cleaning can be benefits of sealing grout, the primary function remains focused on protection from moisture and stains. Increasing the bonding strength of tiles is not a function of grout sealing; rather, bonding strength is typically achieved through the adhesive used during installation.