Polish the wax with a nylon brush, followed by a fine, nonabrasive fiber pad.
(Tips provided by Scott Holmer, a ski tuner for such racers as U.S. Ski Team athlete Kevin Francis and U.S. Snowboard Team rider Adam Smith. He runs The Race Place in Bend, Oregon and owns BEAST, a brand of ski-tuning tools he designed.)
(To learn more about waxing, check with your local specialty ski shop; it probably offers clinics. Holmer's instructional video ($20) covers waxing and tuning. His wax packages cost $60, not including the iron [800-814-7223; ski-racing.com].)