Best Aluminum For Salt Water. About an inch of dishwashing detergent and then fill with water. When it comes to a good better best for saltwater resistance the powder coat doesnt really make the cut.
Though aluminum does not exhibit rusting like steel does it will develop a chalky film and pitting in the metal surface when exposed to salt for long periods. When it comes to a good better best for saltwater resistance the powder coat doesnt really make the cut. If strength is more of a concern grade 5083 is a good alternative.
Many aluminum wheels are clear-coated but the quality of that finish probably varies greatly across different manufacturers.
The aluminum metal atoms that lose electrons become ions and are free to bind with the oxygen in the water to form aluminum oxide. Salt will eat the aluminum pretty quickly if its left alone. Many aluminum wheels are clear-coated but the quality of that finish probably varies greatly across different manufacturers. Aug 20 2005.