Looking for tips/procedures used for polishing inner and outer sill plates

When polishing aluminum trim go extremely light pressure. Aluminum is one of those parts that will wear down edges and corners quite easy. They polish up quite nice but need a light touch to keep the detail.

Some people I’ve used for aluminum trim detailing actually spray a light acid on the trim to cut the oxidation first. This acid is the same stuff truckers use to keep their bright work- well “bright.” Over the road trucking destroys the aluminum. Only down fall is it turns the aluminum a white color. But hand polish from there with “never dull” or Mothers. I prefer never dull. Once polished and clean, I’ve used a good automotive clear over the top to keep the shine. The acid strips all protective coatings off. That is IF you go that route.