We’ve been trying to get the metal button of a rear-view mirror to bond to a new windshield.
Dave Dunn's September 2017 column.
Question: We’ve been trying to get the metal button of a rear-view mirror to bond to a new windshield. We’re in the summer heat of Las Vegas where it is routinely over 110°F―and even hotter inside a closed car. We’ve tried all the typical glues but, while the button will cure and hold, it falls off when the mirror is attached. It will sometimes hold for a few days; other times, it’s just a few minutes. We’ve followed the instructions to the letter, but the bonds always fail. We’ve even tried the special superglue that touts glass-to-metal bonds. When the car gets hot, the mirror always falls off.
Answer: I would certainly recommend one of the leading brands of rear-view mirror adhesive. They have been used all over the world for many years in both hot and cold climates. That’s not to say that there have not been failures, but they are rare.