First, the reasons for the dark spots in the bathroom mirror
In fact, this situation is not uncommon, the bright bathroom mirror in the bathroom for a long time under the dense water vapor, the edge of the mirror will slowly become black and even gradually spread to the center of the mirror. The reason is that the mirror surface is commonly manufactured by electroless silver plating, with silver nitrate as the main raw material.
There are two cases of black spots, one is in a humid environment, the protective paint and silver coating on the back of the mirror peel off, and the mirror has no reflective layer. Second, in a humid environment, the silver coating on the surface is oxidized by the air into silver oxide, which is itself a black substance, causing the mirror to look black.
Bathroom mirrors are cut, the exposed edge of the mirror is easily eroded by moisture, this corrosion often starts from the edge and gradually spreads to the center, so protect the edge of the mirror. The glass glue or edge sealing strip is used to seal the edge of the mirror, and it is best not to close to the wall when installing the mirror, leaving some gaps conducive to the evaporation of fog and water vapor.
Second, the treatment of dark spots in the bathroom mirror
1, if the black spot on the mirror is floating on the surface, it means that it is a dirty thing splashed on the mirror, we can scrape it off with our nails, or wipe a little toothpaste on the black spot and then wipe it down with a rag.
2, but there is a black spot on the mirror is not dirty, it may be because the metal film behind the mirror occurred oxidation reaction and formed something, if it is so produced black spots that there is no way to remove, can only be left alone or change a mirror. Therefore, reasonable use and maintenance in daily life becomes very important.
3, do not clean the mirror with corrosive detergent such as strong acid and alkali, it is easy to cause corrosion to the mirror.
4, the mirror should be wiped with a soft dry cloth or cotton to prevent the mirror from being wiped;
5, do not wipe the surface of the mirror directly with a damp rag, doing so may lead to moisture into the mirror, affecting the effect and life of the mirror;
6, apply soap on the surface of the mirror, wipe clean with a soft cloth, water vapor will not be attached to the surface of the mirror.
Daily use of bathroom mirrors should pay attention to cleaning and maintenance, to prevent moisture into the mirror, it will be easy to black or appear spots.
