I initially used some urethane based glue, but that stuff is really messy, takes ages to dry, and cures a browninsh-yellow colour.
The final glue I settled on was Fastcap 2P-10. I had to import it from the US (sellers on ebay), but it's brilliant. They do a kit with various thickness glues. I found the Thick and Gel adhesives to be the best for gluing urethane to mesh as they don't run, so no cleanup is needed. The best thing about the 2P-10 is the activator spray - Put the glue on the urethane, spray the mesh with the activator, touch them together, and they're instantly bonded.