I recently blew the dustcap off my 05' xxx and was wondering what we be a good product I could buy locally to seal it back with. I will buy the dustcap glue off of partsexpress.com if nobody can suggest something that compares.
'Clear silicon rubber adhesive sealant' is the long name, I've used it for a lot of speaker surround/cone/dustcap repairs. Not sure who makes it, but it works great. But if the dustcap glue is cheaper, you might as well go with that.