Yes, grout sealer will prevent this a protect your grout moving.

Grout color wet vs dry. So the answer is no, color sealed grout will not get darker when wet or lighter when dry. Grout dries lighter than the dark color it is when you lay it down wet. If the water penetrates the grout immediately, apply another coat, and wait for another two to three hours.

A good, quality color seal fills all the tiny pores so that there is no longer any space for moisture. For best results and longevity, keep. That’s another very important clue.

It can take new grout 24,. If the grout is not fully cured, it may not yet have achieved the color that was selected from the. Don't expect grout color to look exactly like sample stick/picture but should look close!!

However, the grout doesn’t always give you the color you expect. If the grout stays wet after a shower, let it remain dry for 72 hours. The grout color does not change when it is wet.

This will permeate the grout as long as. Add colorant pigment to the grout mix, if desired. Yep you need to seal the grout.

New grout can take 24 or even 48 hours before it’s completely dry. Usually, the wet grout is darker than the dry one. It will look darker when wet cuz water absorbs into unsealed grout.