Honestly, I've found that about any silver will do the trick. I personally have been using The Army Painter's Plate mail metal because it comes in a rattle can as a color primer and works really well as a base. It's a deeper, rawer metallic than a chrome silver, which I like for my base coat. I say this specifically for Boba Fett pieces and parts because I end up dusting up the helmet or armor with weathering mists after I've exposed the masked silver. I've not done a Mando or Jango so if you're looking for that level of shine and gloss, I can't speak to that.