raden wrote:
In message , Lobster
writes
I've got an old 7'x4' mirror wardrobe door which I've decided to
recycle in the refurbed bathroom - basically by removing the glass,
cutting it down a bit and hanging it along the complete length of one
wall, above the basin. (A la Property Ladder!)

The actual glass weighs about 25kg. The wall is a freshly re-skimmed
lath-and-plaster job and is pretty solid; I was thinking of sticking
the mirror to the wall with some form of adhesive (probably standing it
on temporary battens screwed to the wall until it's set). Using screw
fixings would be awkward because (a) I haven't got the bottle to drill
holes! and (b) the positioning of the holes relative to where the
supporting studs are would look crap.
snip
I just gobbed a load of silicone on the back of mine and let it set over
night

Overnight might not be enough to set a really large bead of silicone -
I'd leave it a week - unless there was a pressing reason to need it
sooner.