I believe what youre referring to is called silastic, although im sure thats a brand name like kleenex or velcro. Secondarily im sure it varies from item to item based on where it was made (cost cutting measures, etc).
i dont think cold weld epoxy is what youre after. You really want a silicon rubber type deal.
If youre feeling super lazy and just want to be done with it, you can use hot glue, but this is a generally bad solution.