I have tried 4 different adhesives for the rearview mirror "button" and non have lasted more than a day. I am guessing I'm not quite in the correct position on the windshield and the spot has more curve to it? Can someone measure the distance from the top and driver side edge of the windshield to the center of the button please?
Thank you
The glass and the mirror mount both need to be spotlessly clean with no residue from the old adhesive.
Not even a speck.
You have to follow the instructions exactly.
Including temperature bond time etc...
Dont overlook the mounting surface.
In general, "fresh" wet adhesives will not chemically bond to cured adhesives.
The old adhesive has already cured and catalysized and outgassed.
The new adhesive is only reacting with itself, and not with that now chemically different old adhesive.
And you should make sure that the adhesive you are using isnt ancient.
Its not a very commonly purchased adhesive so it may be a couple of years old.