Formulated by Cohler Enterprises, this Superbrite™ rhodium pen-plating solution is very highly concentrated and produces excellent results at room temperature (which greatly minimizes material loss through evaporation). It delivers an extremely bright white result to your metal. Precisely place this solution exactly where you want it on your workpiece to highlight and enhance the brightness of gemstones or to create two-tone finishes. Rhodium is a bright white, tarnish-resistant, hard metal in the platinum group—ideal for giving jewelry a brilliant white finish.