Grout is not merely plain cement, although cement serves as the primary foundational binder in standard cement-based tile grout formulations. Standard sanded and unsanded tile grouts are complex mixtures composed of Portland cement, fine aggregate sand (in sanded varieties), water-retaining chemical additives, plasticizers, and color pigments designed to ensure durability and aesthetic appeal. Additionally, modern specialty grouts depart significantly from traditional cement compositions by utilizing advanced polymers, epoxy resins, or polyurethane compounds that deliver superior stain resistance, waterproof qualities, and chemical durability without relying on cement binders at all.
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