Bob,
It looks like you can only order it from the U.K. right now. Here's their website:
http://www.bug-bond.moonfruit.com/#/bug-bond/4537309415
Clear Cure Goo is another similar product you may want to look at; it comes in thin or thick and now a new flexible formula (might be good for Crease Flies); also distributed in the US which would make ordering/shipping a little easier:
http://www.clearcuregoo.com/index.html
Regards,
Scott