Hi Matt,
Thanks for your reply, I didn’t think to check the MSDS.
The main glue listed in that forum is no longer available. I did check the local hardware store and found the product Sika Bond, Tech grip. This is a high strength Polyurethane adhesive and it contains …….4,4′-Mthylenediphenyl disocynate…Ta Da…
I’m still squirrelling my supplies but I will get that and Aquaseal and maybe a couple of other products when i build and test them for the community.
Many thanks
Steve