bonding will secure any parts that are properly prepped and fitted, for a long time with out any cracks. Good suppliers are 3M, Fusor and LORD.
Many do not know many vehicles have more bonded parts than we know. If I recall correctly car manufacturers where bonding certain body panels as far as 20 years ago. The new chemistry is far superior to what it was. In addition its important who is doing the work also. Good luck.