Window trim adhesive?

What do you use to get the stainless window trim on the back of the door glass of a 69/70 fastback to stay on? Whatever I used last time only lasted about a year. There doesn't seem to be anything in the groove of the stainless. Is it just a direct glass-stainless bond?
Once the trim is on, both sides don’t match up with the rear trim piece. It touches at the bottom but not at the top. I've adjusted the window at the bottom of the door and is already at its max movement. Any ideas? They are both original and I don’t think the passenger side trim has ever been off.
 
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I bought a 2 part epoxy type adhesive from a glass shop. It came in a small plastic package with a red stirring stick separating the two components--one component was white, the other black. Mixed together was a medium gray and had the potential to be real messy. The stuff was made for glass.