Can i put hair spray or any hair product in my hair and then straighten it?

eventually yes it will damage your straightener over a certain period of time if you dont clean it ofcourse. i dont think that it would do any damage for your hair really, just dont do it every day or so as your hair could become damaged. really it shouldnt do any damage, it could even prevent some damage as the hairspray is heated up and not the hair itself, but still the hair will be straightened