Do you think the 303 would restore the flexibility of the rubber enough the be able to push the dry rubber bead back into the frame. The bead on our Campster
has shrunk enough that one corner is pulled loose creating a triangle of about 1 by 1" on the frame sides.
I've been considering this issue for about 5 years since we got it. It hasn't gotten any worse and hasn't caused any problems, but it would be nice to fix.