Hi. In my bathrooom I have a mirror which was glued on the wall tiles using silicone. It pretty much fits on the wall (maybe 1-2 millimeters gap). Under the bottom , left and right sides of the mirror I see some gray substance. It probably is mildew or rust because of the humidity formed when bathing. Two questions:
- how can i clean this ? (however, it is not much, so I wouldn't mind leaving it there)
- how can i prevent it from spreading? I thought of sealing the 3 sides with silicone and leaving the top one unsealed so that any humidity trapped can escape. If humidity occupies space from bottom to up, then sealing the sides would be fine.
Your comments please