Most adhesives let go or get easier with heat. You might try a
hair dryer if you do not have a heat gun. Heat one piece of
glass, then concentrate the heat on a starting corner and pry
gently with a stiff putty knife or small glass setter's crow bar.
Wear safety glasses and gloves.
I hope you are not planning on getting the mirrors off in useable
condition, it will be a 50/50 venture at best. The heat should
also help you get the adhesive off the walls once the glass is
Keep the whole world singing . . . .
DanG (remove the sevens)
I have a similar problem for my bathroom. I haven't got around to
removing the 6 pieces of mirror tile yet . My game plan is to
1. Spray behind the mirror with WD 40 and see if that softens the
sticky pads enough for me to pry loose the tiles without pulling out
the drywall paper.
2. If this doesn't work my next plan is to spray WD 40 again and add
some cooking oil too in the hope that the oil plus WD 40 will work
itself into the glue to weaken it.
3. If that doesn't work either then its the paint stripper heat gun to
semi-melt the glue and soften the pad.
4. Last chance will be to heat the mirror tile with that heat gun and
crack the mirror glass by shocking it with a cold water mister.
If you can get behind the mirror to spray in WD-40 at the pads, you can
probably slide a thin blade back there, cut through the pads, and save
yourself a lot of trouble. Once the pads are cut, the mirror will lift
away, and you can then use a putty knife to clean off what's left of the
pads from the wall.
I'd be skittish about prying glass or spraying WD-40 onto a wall that I
hope to paint or paper. A more brutal, basic attack would be to break
the mirrior away, at least one panel to see what's behind it. Cover the
surface of the mirror with Contact paper, lay down heavy plastic to
catch pieces, wear eye protection, and give it a smack. When I was
re-glazing daughter's old windows, I used Contact paper to contain the
glass when the only alternative was removing it - I did not want to dig
at the old, hard putty and put my hand through the window and didn't
know any other method to remove it. If the mirror is held on with
minimal glue, this might keep you from tearing the wallboard to shreds.
I tried that long ago and vaguely remember that I couldn't reach the
pads on far end of the mirror. It had to be a bare snap off box
cutter knife blade because there was no room for any handle attachment
if I wanted to work behind the mirror. Since I couldn;' finish the
separation I had to pull off the bottom pads and with it a long strip
of drywall paper. Rather than mutilate the rest of the wall I put a
replacement mirror tile back and left it at that. Its amazing how
tenacious these glue pads are. They don't work half as well when used
to hold up something else. Anyway I never used sticky pads again on
drywall as the chances are that they tear off the drywall paper when
it came to removing them.
Nothing to it.
1) Pry top of mirror away from wall a bit (carefully). Consider inserting a
wood shim or two. The idea is to apply seperation pressure continously
while you do the next step.
2) Pour a small amount of solvent between the wall and the mirror. "Goof
Off" works well here but paint thinner might also. Forget the WD-40. It's
not a solvent. As the solvent softens the adhesive, the mirror will move
away from the wall. add another shim to maintain the seperation pressure.
3) Stay prepared to "catch" the mirror if the adhesive decides to release
all at once.
you can go at it 2 ways heat or cold dry ice should cause the adhesive to
harden. a hair dryer to cause it to soften. Dental floss, I prefer the
Glide brand as it is made form Gore-Tex and holds up pretty well, used like
a saw back and forth. It is important to TAPE the glass 100% so that if it
does break you will not have as much to clean up and put a towel wit a drop
cloth on top of it under the glass the towel will cushion the fall and the
dropcloth with catch any shards.
2. piano wire see-sawed back and forth
dadiOH's dandies v3.0...
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Get it at http://mysite.verizon.net/xico
I've used this technique for 25 years with no problems. You need an
exposed edge of a tile. Get some shim or roofing shingles and slide a
couple under the mirror tile and tap the end with a rubber mallet until
you feel resistance. tap a few more times and wait. Tap more, wait a bit
and tap more. You may need to additional shims to add thickness, but the
mirror will come off. It comes off gently, too, not shooting across the
At some point, a shim may run into the mastic and you'll need to tap
harder, or take them out and reposition them.
There will be mastic left on the wall which will have to be removed, or
torn out pieces of plaster or sheetrock that need to be patched. If the
damage is severe, replaster or install (N) drywall.
 wooden shingles, not shakes. You want them to be even, not bumpy.
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