BTDT
The adhesive is a good product and will hold just like when the car was new.
Before applying it, however, you need to get the glass CLEAN. There's
probably a good deal of stuff on the windshield you'd never suspect -
silicone being the worst offender. Even new glass has lots of invisible
film on it from manufacturing, shipping, and installation. Many glass
cleaners also leave films, and of course smoke, outgassing of interior paint
and upholstery, etc. adds more contamination.
Use a razor blade to clean off all the old adhesive. Clean the windshield
with lacquer thinner on a clean cotton cloth - use an old white t-shirt,
etc. - no paper towels (all kinds of binders, soluble plastics, etc. in
them). Clean again with a razor blade and again with lacquer thinner on
another clean piece of cotton cloth. Finally buff clean with yet a third
small piece of clean cotton cloth.
Do the same with the metal piece that you need to attach to the windshield.
NOW you should be able to get a good bond, following manufacturer's
application instructions.
Good luck !
Karl Vacek
> This at the fourth, maybe even the fifth time my rear view mirror
> has fallen off since I had the windshield replaced a few years back.
> The adhesive the glass shop used didn't work worth a damn and the stuff
> I've used to reattach the mirror hasn't worked any better. Probably
> because it was the same junk. What I've been using is the 2-part
> Permatex
> Rear View Mirror Adhesive available at most auto parts stores and even
> some drug and grocery stores. I've followed the included instruction to
> the
> letter, to no avail. Since the rear view mirrors on my other cars don't
> fall
> off on a regular basis, I'm assuming there's something better out there!
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