NorthIdahoWWer wrote:
I was assuming that the foaming action would make the glue cover the area.
It was a 2.5" wide board. Thing is, the instructions are very sparse on the
bottle. It just says to dampen both surfaces, says nothing of spreading.
Even Elmers' website gives no details on how to use the glues.

Well, now you know but that still leaves the question of non-foaming,
non-expansion. There should have been some and there wasn't if I read
your post correctly.