As we have said often of the G3 line, "what kind of glue are they using, and why aren't they sharing??"
Seriously though, I was recently in a thread conversation about paint - the kind they used on the toys at the factory level. It turns out the reason we can't use it is that it's horrifically toxic when wet. Once dry it's fine, but when wet it's a carcinogen nightmare. We literally can't get it in North America (or at least, not if you're a crafter/artist and not a giant corporation factory).
Probably this superior glue is the same. Before curing it's probably poisonous as all get out, so we mere mortals can't get access to it. Once dry it's safe.
All the same, I'd wash your hands and equipment really well after handling it. It's probably nothing to worry about, but ... I worry about everything (*goes back to workroom and soaks in acetone for 3 hours getting paint off a blindbag rubber horse*).