You'll just have to buy a few different shades of alcad and see what metallic color looks best to you. Just because it says Magnesium on the bottle doesn't mean it best represents magnesium, if you get what I mean. I find a dark aluminum or Stainless steel alclad colors to look the best for Jet panels around the engine exhausts for fighter jets. And No, only use lacquer thinner to clean alclad from your airbrush.