Custom Building Products PolyBlend PLUS Charcoal Sanded Tile Grout, 25 lb. is designed to enhance performance, finished color, and color consistency in your tiling projects. This dry sanded tile grout is a polymer-modified, cement-based formula that creates hard and dense joints resistant to shrinking, cracking, and wear. It is formulated for durability and accommodates joint widths from 1/8 inch to 1/2 inch (3.1 to 12.7 mm), making it suitable for both interior and exterior applications such as floors, countertops, walls, ceilings, showers, fountains, and pools. Easy to use, simply mix the grout with water and apply. This product comes conveniently packaged in a 25 lb. bag.