On 07/07/2011 05:29, The Natural Philosopher wrote:
DerbyBoy wrote:
I have ordered a rather tall mirror which I need to fix to a dot-dab
wall (painted).
I am opting for mirror adhesive - any tips?The weight will be mainly
taken by a tiled splashback.


yep. get the recommended mirror adhesive from a glaziers.

Absolutely, I've often put them up, with no problems at all; including a
couple of big ones about 5' x 3'. I'm under no illusions that they will
ever come off the wall except in small pieces.

Vital to use proper mirror adhesive and to follow the manufacturer's
instructions to the letter. There are different types; one is
solovent-based impact adhesive which you spread thinly on both surfaces,
allow to dry and then press together; the other sort is more 'bulky' and
you apply it from a cartridge gun in thick beads about 6" apart. You
need to maintain the thickness of the bead for it to do its job; I
usually attach a few spacers to the back of the mirror so it can't be
pressed too closely against the wall; this also allows air behind to
ensure the adhesive 'goes off'.

Another good tip for a big mirror is to screw a temporary batten to the
wall to take the weight of the mirror while it sets.

David