The other day I went to a demo/workshop with some local gardeners wanting to learn to hypertufa. One of the ladies was having trouble with her mold bending and causing cracks in the hypertufa. She also ran out of mix and wanted to take it home with her to use on a smaller project. In my ignorance, I advised her to add a very small amount of diluted Elmer's glue and mix it in very well. (She has no bonding agent.) Was I really off base with my suggestion and would the mix be OK after perhaps an hour in a plastic bag til she got home?