Glass glue

[glassartguy]

 I came to glass via the Lapidary route. I used to make Opal triplets and Doublets. The glue I used was Epoxy 330. It holds very well, especially if the surfaces are not polished. It can be heated to accelerate the curing time, and most importantly, it cures "waterclear." I have used it on glass with great success. It would work perfectly for the bales.