How Long Does It Take For Grout To Dry Before Sealing. 48 to 72 hoursafter you’ve installed new tile, you want to wait at least 48 to 72 hours for the grout to dry and cure. Also to know is, how long does it take for grout to dry in shower?
And you can start using the shower the day after you caulk. Before you apply the sealer, allow the grout to dry for 45 minutes.
Armor SX5000 Silane Siloxane Concrete Sealer
Besides the question of “how long does grout take to dry?”, how to seal the grout is an equally important issue. Both are subject to variation depending on the brand and environmental conditions, but a basic recommended drying time is 72 hours when used in a shower tile job.