I purchased several Kwikset deadbolts and they are rusting / corroding in the outer ring (not stainless steel), not the locking mechanism. Items are installed on a Florida island. Would rubbing a thin coat of oil or similar lubricant slow down the rusting of the outer ring?
Would a vegetable oil or olive be just as effective as motor oil / WD40? An line of reason or lessons learned are appreciated.
Or would a spray on clear enamel be more effective? The outer perimeter ring (workpiece that is rusting) can be separated from the locking mechanism, so as to avoid gumming up locking mechanism