Perhaps a daft question here!
If you use a contact adhesive like evostick and you allow the normal touch dry method before adjoining the two items how in hell's name do you manage to push the rubber seal into the header rail channel as on contact there is usually instant adhesion and this could prevent further movement which would severely limit the ability to seat the rubber seal fully/correctly into the channel. Although I haven't tried with evostick when I replaced my seal I used an adhesive which was a one part product called
Amazing Goop. I researched it as a product and it was recommended for rubber to metal bonding. When installing the seal I really wasn't sure I had made the correct choice as it didn't seem to have good adhesive properties so I did clamp it in place. firstly by fitting a straight timber former into the flat center section which I glued first then when dry I applied the adhesive to the curved ends one by one using a template that I made to follow the curves at the ends of the header rail and it seems to have been successful being done almost a year ago. One true advantage I did find was that any glue that had squeezed out just simply rubbed away with little effort.
