Open cardboard boxes/crates, often for foodstuffs, are often glued to hold their shape. What is the glue/adhesive made of?
I ask to know if it is biodegradable, such that it is suitable for composting/gardening.
My preliminary research seems to indicate polyvinyl acetate (PVA), which seems to biodegrade fast enough for my application.
See example box (from CTHOE at Wikimedia):
Sorry if this is the wrong Exchange, it seemed the most suitable for my question.