Dan -

Thanks for the advice. I'll try calling the Hysol folks to see if they will test. As a matter of practice, for every closeout using flox/epoxy or flox/hysol mixes, we have saved the remainders. Once they are cured, we cut them to expose a cross-section to see how it looks. We then label the piece and what part it was used to bond; plus the date. We have a box of these pieces for documentation.

Cheers,

John