What kind of glue should be used to reattach a fallen rearview mirror?

2 Answers
DeJeremiah
08/31/25 5:37am
Using glue cannot effectively reattach it; the mirror must be replaced entirely. Below is relevant information about rearview mirrors: 1. Definition: Vehicles are typically equipped with anti-glare rearview mirrors inside the cabin, which consist of a special mirror, two photodiodes, and an electronic controller. The electronic controller receives signals from the photodiodes for both front and rear light. If the light shining on the interior rearview mirror is stronger from behind than from the front, the electronic controller will send a voltage to the conductive layer. 2. Material: The reflective coating of automotive rearview mirrors is generally made of silver and aluminum, though some use chromium.
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Roman
09/13/25 2:08am
I once encountered a situation where the rearview mirror fell off during car repair, and using specialized adhesive is crucial. Never casually use 502 or ordinary glue, as these are not heat-resistant and can melt under summer sun exposure, causing the mirror to fall off again, which is even more troublesome. I recommend automotive structural adhesive or epoxy resin glue, which are specifically designed for rearview mirrors and can withstand vibrations and weather changes. Before applying the adhesive, thoroughly clean the back of the mirror and the base with alcohol wipes to remove old glue and grease, then wait for it to dry completely before applying a thin layer of adhesive. Align the position and press firmly for a few minutes; it's best to let it sit for a day to allow the glue to fully cure. If you're in a hurry, you can use a hairdryer on low heat to assist drying, but don't hold it too close to avoid damaging the plastic. Don't delay this issue, as poor rear visibility while driving can easily lead to accidents. Regularly check the mirror's stability during car washes to save a lot on repair costs.
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