Originally Posted by gwrench
Sounds like a job for 3M Weatherstrip adhesive. Auto parts stores should have it.

I tried that, it didn't last.

Originally Posted by Cretch
How about the type of glue they use for rear view mirrors? An auto parts store may have some.

I think both surfaces have to be pretty flat. The part that the mating flashing is not.

Originally Posted by Orion2000
Loctite 406 is specifically formulated for plastic and rubber.

I need something that has fairly quick tack time Taking the entire window down and doing the job on a bench is not very easy. Whatever I do has to be done situ with clamps maybe.

Thanks everyone for taking the time and giving excellent ideas and advice.

If God wanted you to walk and carry things on your back, He would not have invented stirrups and pack saddles