Seabee BU A School Wall and Floor Tile, Trim, And PEB Practice Test

The first step is to let the grout cure according to the manufacturer's instructions. Grout is cementitious and needs a proper curing period for the chemical hydration to complete and moisture to dissipate. If you seal too soon, the sealer can trap moisture and interfere with the grout’s cure, causing hazing, discoloration, or weaker bonding of the sealer. After the grout has fully cured, clean the surface to remove any haze and ensure the grout is dry before applying the sealer. Direct sun exposure or sealing immediately after grouting can cause problems, and cleaning with a neutral detergent is part of the prep only after curing, not the sealing step itself.