I know the use on 3M primer and Window-Weld has been covered. Did this last year to one side of the glass with excellent results. The other side is now separating. I decided on another approach and wanted to see what y'all think.

As we know the issue is the separation of the adhesive from the canvas. Rather than scape all the adhesive, apply primer, and Window-Weld decided to apply E6000 to the existing urethane. The urethane was in good shape and E6000 will bond to canvas better. Should also bond well to the urethane. Took less time. Just cleaned up the surfaces with naptha, applied the glue, and secured with suctions clamps. After it set a bit removed the clamps, cleaned up with naptha and a razor for any E6000 that oozed out, and then reapplied clamps until fully cured. Was quicker by eliminating scraping off the old urethan. My concern was not cost. Wanted a solution to improving adhesion to the canvas.

Anyone else do this? If it works advantage is it should last longer and was quick. If not effective cleaning this off the top will be quite a task.