What have you used successfully to fasten the sliding glass pieces to the aluminum frames? I have the unit disassembled, the old glue cleaned from the glass and channels, new sliding moldings and am ready to reassemble.
thanks

 

Windshield Urethane and frit primer. This is the product a body shop would use. I would recomend getting two tubes and some frit primer. Clean and prime the frit. The frit is the black around the outside of the glass, it keeps uv rays from killing the adhesive. Then cut a V in the tip for the urethane and put a half inch tall need around the glass. Carefully set in place. I will warn you this stuff is very hrd to push from a caulking gun, so a battery powered one is recomended. Any autobody and paint store should be able to fix you up.