"Cecil Moore" wrote in message
. ..
Dave wrote:
just what are you trying to do?? there are all sorts of binding agents
you could use depending on the requirements, just about any glue could be
used, but they have different mechanical and chemical properties.
probably the most durable would be an epoxy, but there are also castable
plastic resins like the ones used for hobbyist to make paperweights, all
the way down to simple casein based glues.

Is there a superstrong glue that remains flexible after
hardening? Something with a little give to it?

depends on what you are trying to glue. plain old rubber cement when used
properly has those properties.