I always start with a soft sponge and dawn dish washing soap. Soap it up real good and rinse out the sponge and rub it again. Then dry it off with a soft towel. Then, put on some latex gloves. Open a container of automobile paste wax. Grab the wax with gloved hands and massage it into the frame. Rub it around and use fingers to remove stains and residue. Let it sit a day and dry. Use clean white towel to rub off & remove wax. Use soft buffing cloth tp bring out luster. That's it. That's all. Done deal.