Alexander Miller wrote:

I have a large wall mirror in our bathroom, secured with the usual
clips. In places the bottom has desilvering or blackening about 1.5
inches up from the edge.

I intend to cover the edges with wood framing to hide the bad spots,
but it would be good to find a way of "stopping the rot." Does anyone
have experience with a product I can safely use to seal the bad parts
of the silvering before I cover them?

Thanks, Alexander.
(My mail is at shaw.ca and you can call me fony.)
Alexander


We have the same with large wall mirrors in baths which have bottom edge
of mirror sitting
on the top of the backsplash behind sink. I'm sure the problem is
condensation running down mirror and then
wicking in behind the mirror. I would get the mirror as dry as possible
and then run some clear silicone caulk along the edges.