Hi, I'm going to be building a 1/48 De Havilland Beaver floatplane for my Dad's desk as a birthday gift, and I have a technique question. I believe that the floats were made of aluminum, and I know that they were left bare-metal. I am wondering what technique(s) you guys and gals recommend for getting a realistic aluminum bare-metal finish. The metal would have been in the water, and would look very weathered, if that helps. Also, I would prefer to use acrylics. Any brands, techniques, or links are greatly appreciated! Thanks!