The adhesive is a Locktite anerobic designed specifically for this application. If the adhesive is properly used, it will provide a permanent bond stronger than the glass itself. To achieve this result the following instructions on use of the adhesive should be strictly followed.
The installer must accurately determine where the bracket should go on the door and mark this position with a grease pencil or other similar technique. This is crucial as once the adhesive has set, it is virtually impossible to reposition, or for that matter to remove the bracket. In selecting a position for the bracket, note that the strike is larger than the bracket and that in most applications, the idea is to align the top of the strike plate just below the top of the door so that it will mate with the magnet face and yet not scrape against the door header. Take the time to be sure that you have identified the proper position for the bracket for the specific installation.