Well its not going to happen. Would you wax your car once and then never wash it again? No you would be crazy. Why then would you think the same would be with your railings and metals around your home? If you live within 10 Miles of any ocean, you need continual up keep and maintanence. Mother nature is a harsh lady at times especially on your metals.
So keep your stuff protected. Our products available exclusively at http://www.grogcoatings.com/ will do everything you ask of a corrosion barrier and more. If you clean your metals well, apply our one time application system, and simply use soap and water once a month to clean your, aluminum, stainless steel, copper and more, we can add years to the life of your things. And years to your life from lack or stress and the constant maintenance your currently facing. Or hire us direct. Send us your items and we can coat them for you direct, or for those SoCal residences we can come to you!