i got told a story, how true it is and if it would work i don't know, but
if you take a thin craft type knife and run it around the molding step you can separate the rubber from the steel frame, you can then weld the frame and then glue the rubber back on and if you do it right you will never pick it.
NOW I have never tried it, I am only repeating a story, it may be right it may be wrong. Just putting it out there.