Golfi90
2020-07-07 20:21:27
- #1
Hello everyone!
Matching our relatively black 60x60cm tiles, we had our bathrooms grouted in black.
At first, all the grout lines were nice and black.
For some time now, however, some of the grout lines are turning white.
When they get wet in the shower, for example, the grout lines immediately turn black again.
When they dry out, they turn white again.
This whole process is reproducible at will.
What can we do about it now?
As far as I saw back then, ready-mixed grout from a bag was used.
Matching our relatively black 60x60cm tiles, we had our bathrooms grouted in black.
At first, all the grout lines were nice and black.
For some time now, however, some of the grout lines are turning white.
When they get wet in the shower, for example, the grout lines immediately turn black again.
When they dry out, they turn white again.
This whole process is reproducible at will.
What can we do about it now?
As far as I saw back then, ready-mixed grout from a bag was used.