I use tight bond 3 and drum sand them down to .040 or .030. I have only had one come apart and I just glued it back together with no problem.
You need to sand the joint... clean the joint with Acetone the apply good pressure as the joint dries.
I don't know much about tb2.. But we use tight bond 3 in the wood flooring industry to glue together the floors.. works great and holds up..