Hello, My former beautiful Golf VI brake calipers have become almost grey from the salt winter (see picture). Now I would like to bring the original silver color again with FoliaTec brake caliper varnish. On Foliatec pages I found Two Silver Color – Stratossilver and Stratossilver Metallic? Which color would you recommend to me so that it looks like ex works? Thanks already for answers. Greetings,