Use very silvery paints. I think GW had Chainmail and Adamantium. Paint on Chainmail…medium silver. Wash in blue wash. Drybrush on Chainmail to clean up the base color. Highlight with Adamantium….bright silver. Clear coat the figure in the usual manner. If you are flat coating the figure, as a final step, brush on gloss coat to all the shiny metal bits.
"Nearly all men can stand adversity, but if you want to test a man's character, give him power."