How long does grout take to cure?
Short answer
24-72 hours
Grout is firm in a few hours but needs 24-72 hours to cure before sealing or heavy use.
What changes the time
| Condition | Time | Why |
|---|---|---|
| in a humid bathroom | up to 7 days before sealing | Trapped moisture must escape before you seal. |
| with epoxy grout | 24 h | Epoxy grout cures faster and needs no sealing. |
Tips
- Do not get the grout wet for at least 24 hours.
FAQ
How long before I can shower over new grout?
Wait at least 24-48 hours, longer in humid rooms.