OBG has the same functions as the hide glue, but in a ready-to-use bottle form. Put it in the refrigerator (not freezer) will extend its life (by one more year beyond the shelf life (18 months) marked on the bottle according to my experience). Long working time - 20 mins to 30 mins, but also long clamping/curing time (12/24 hours for me). I use it for complex glue-ups (long open time) or glue-ups that I could undo if the assembly goes awry (insurance for complicated joinery projects).
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