I don't know about the dielectric properties of it, but they use it in stomach medicen like pepto bismual. It's be interisting to see a cap soaked in that :) > Original Poster: "gimpieLAPTOP" <gimpie-at-tsa-dot-net> > A question please. What is the dielectric material with the highest > rating? Would that be Bismuth? > a newbie to coiling. > gimpie