Try www.newfoam.com, www.woofer.com/woofer, or www.steppaudio.com. They make repair/replacement kits for surrounds, maybe they will have something you can use. I've never had to use their products, but comments I've heard were favorable. I have repaired speaker foam surround with RTV, and glued cones back together. If you don't change the cone alignment or the flexibility of the surround, you should be able to help your woofers.
foam on speaker delaminating. Fix it ???
I have a beautiful pair of speakers. The surround foam on the woofer drivers has delaminated. There is absolutly no deterioration. It almost looks as though it was never glued/ attached. Can this be fixed or are my speakers DOOMed. Any suggestions or advise would be greatly appreciated. Thank you, Paul