C0, C1, C2 Tile Adhesive Grades: A Clear Guide To Smart Material Selection “Which tile adhesive should I pick?” It’s one of the most common—and costly—questions in tile installation. Walk into any building supplies store, and you’ll see packaging marked with a jumble of letters and numbers: C0, C1, C2, D, T, E, S1, S2. Many people end up relying on sales staff recommendati