Grout fills the spaces between tiles, providing a finished look and preventing water penetration. The selection between two primary types hinges primarily on joint size. One variety incorporates fine sand, while the other does not. The sanded version offers strength and resistence to cracking in wider grout lines, for instance, in joints 1/8 inch or larger. The other, without sand, is better suited for narrow joints where the aggregate would be excessive and potentially cause scratching or installation issues.
Correct grout selection is critical to the longevity and appearance of tiled surfaces. Using the appropriate material prevents structural problems like crumbling grout and water damage, ultimately saving on costly repairs. Historically, grout formulations were simpler, with fewer options available. Modern advancements provide specialized grouts for different applications, underscoring the importance of understanding their characteristics.
