If it's a PU glue then it's a great gap filler when gluing up mitres on deep softwood skirting which is usually convex/concave!! No filler or decorators caulk required!!
Ordinary PVA glue is very good also, been using it for years, I made some sawlog ramps from some bits of 3"X2" and 3"X1" and sheathed in 12mm plywood, all glued up with PVA, tested to 3/4 ton between them that I know of, probably take at least a ton between them before failure.
Glued (plus a few nails) ramps shown....Chief hillbilly at the helm of the chainsaw mill!
Lawrence.